Update vmci_listener.cpp

make vmci_listener compile on windows again

.clang-format

@@ -0,0 +1,53 @@
+BasedOnStyle: LLVM
+IndentWidth: 4
+UseTab: Never
+BreakBeforeBraces: Custom
+BraceWrapping: 
+    AfterClass: true
+    AfterControlStatement: false
+    AfterEnum: true 
+    AfterFunction: true 
+    AfterNamespace: true
+    AfterObjCDeclaration: true 
+    AfterStruct: true 
+    AfterUnion: true 
+    BeforeCatch: true 
+    BeforeElse: false 
+    IndentBraces: false
+
+AlignConsecutiveAssignments: false
+AlignConsecutiveDeclarations: false
+AllowShortIfStatementsOnASingleLine: false
+IndentCaseLabels: true
+BinPackArguments: true
+BinPackParameters: false
+AlignTrailingComments: true
+AllowShortBlocksOnASingleLine: false
+AllowAllParametersOfDeclarationOnNextLine: true
+AllowShortFunctionsOnASingleLine: InlineOnly
+AlwaysBreakTemplateDeclarations: false
+ColumnLimit: 80
+MaxEmptyLinesToKeep: 2
+KeepEmptyLinesAtTheStartOfBlocks: false
+ContinuationIndentWidth: 2
+PointerAlignment: Right
+ReflowComments: false
+SpaceBeforeAssignmentOperators: true
+SpaceBeforeParens: Always
+SpaceInEmptyParentheses: false
+SpacesInAngles: false
+SpacesInParentheses: false
+SpacesInSquareBrackets: false
+Standard: Cpp03
+
+SortIncludes: false
+
+FixNamespaceComments: false
+BreakBeforeBinaryOperators: NonAssignment
+SpaceAfterTemplateKeyword: true
+AlignAfterOpenBracket: Align
+AlignOperands: true
+BreakConstructorInitializers: AfterColon
+ConstructorInitializerAllOnOneLineOrOnePerLine: true
+SpaceAfterCStyleCast: true
+BreakBeforeTernaryOperators: true

.clang-tidy

@@ -0,0 +1,429 @@
+Checks:        "*,\
+# not currently a coding convention, but conceivable,\
+-llvm-include-order,\
+# currently the coding convention deliberately produces violations of these,\
+# rules, but it may make sense to reconsider,\
+-readability-implicit-bool-conversion,\
+-readability-braces-around-statements,\
+-readability-named-parameter,\
+-fuchsia-default-arguments,\
+-google-readability-todo,\
+-google-runtime-int,\
+-cppcoreguidelines-avoid-goto,\
+-hicpp-avoid-goto, \
+-cppcoreguidelines-pro-type-member-init,\
+-cppcoreguidelines-pro-type-static-cast-downcast,\
+-readability-identifier-naming,\
+# not applicable,\
+-fuchsia-default-arguments-calls,\
+-fuchsia-overloaded-operator,\
+-fuchsia-statically-constructed-objects,\
+# not currently a coding convention, C++11-specific, but conceivable,\
+-modernize-use-nullptr,\
+-modernize-use-equals-default,\
+-modernize-deprecated-headers,\
+# not currently a coding convention, C++11-specific and hard to implement,\
+-hicpp-no-malloc,\
+-hicpp-avoid-c-arrays,\
+-modernize-avoid-c-arrays,\
+-modernize-pass-by-value,\
+-modernize-loop-convert,\
+-modernize-use-auto,\
+-modernize-use-trailing-return-type,\
+-modernize-use-using,\
+-modernize-return-braced-init-list,\
+-cppcoreguidelines-avoid-c-arrays,\
+-cppcoreguidelines-no-malloc,\
+-cppcoreguidelines-owning-memory,\
+-cppcoreguidelines-pro-type-union-access,\
+-cppcoreguidelines-pro-bounds-array-to-pointer-decay,\
+-cppcoreguidelines-pro-bounds-constant-array-index,\
+-cppcoreguidelines-pro-bounds-pointer-arithmetic,\
+# not easily possible to implement (maybe replace by specific exclusions),\
+-cppcoreguidelines-pro-type-vararg,\
+-cppcoreguidelines-pro-type-reinterpret-cast,\
+-hicpp-signed-bitwise,\
+# duplicates,\
+-google-readability-braces-around-statements,\
+-cppcoreguidelines-pro-type-cstyle-cast,\
+-cppcoreguidelines-avoid-magic-numbers,\
+-readability-magic-numbers,\
+-hicpp-braces-around-statements,\
+-hicpp-use-equals-default,\
+-hicpp-deprecated-headers,\
+-hicpp-no-assembler,\
+-hicpp-vararg,\
+-hicpp-use-auto,\
+-hicpp-use-nullptr,\
+-hicpp-no-array-decay,\
+-hicpp-member-init"
+WarningsAsErrors: ''
+HeaderFilterRegex: ''
+# AnalyzeTemporaryDtors: false
+CheckOptions:
+  # - key:             cert-dcl59-cpp.HeaderFileExtensions
+    # value:           h,hh,hpp,hxx
+  # - key:             cert-err61-cpp.CheckThrowTemporaries
+    # value:           '1'
+  # - key:             cert-oop11-cpp.IncludeStyle
+    # value:           llvm
+  # - key:             cert-oop11-cpp.UseCERTSemantics
+    # value:           '1'
+  # - key:             cppcoreguidelines-pro-bounds-constant-array-index.GslHeader
+    # value:           ''
+  # - key:             cppcoreguidelines-pro-bounds-constant-array-index.IncludeStyle
+    # value:           '0'
+  # - key:             cppcoreguidelines-pro-type-member-init.IgnoreArrays
+    # value:           '0'
+  # - key:             google-build-namespaces.HeaderFileExtensions
+    # value:           h,hh,hpp,hxx
+  # - key:             google-global-names-in-headers.HeaderFileExtensions
+    # value:           h
+  # - key:             google-readability-braces-around-statements.ShortStatementLines
+    # value:           '1'
+  # - key:             google-readability-function-size.BranchThreshold
+    # value:           '4294967295'
+  # - key:             google-readability-function-size.LineThreshold
+    # value:           '4294967295'
+  # - key:             google-readability-function-size.StatementThreshold
+    # value:           '800'
+  # - key:             google-readability-namespace-comments.ShortNamespaceLines
+    # value:           '10'
+  # - key:             google-readability-namespace-comments.SpacesBeforeComments
+    # value:           '2'
+  # - key:             google-runtime-int.SignedTypePrefix
+    # value:           int
+  # - key:             google-runtime-int.TypeSuffix
+    # value:           ''
+  # - key:             google-runtime-int.UnsignedTypePrefix
+    # value:           uint
+  # - key:             llvm-namespace-comment.ShortNamespaceLines
+    # value:           '1'
+  # - key:             llvm-namespace-comment.SpacesBeforeComments
+    # value:           '1'
+  # - key:             misc-assert-side-effect.AssertMacros
+    # value:           assert
+  # - key:             misc-assert-side-effect.CheckFunctionCalls
+    # value:           '0'
+  # - key:             misc-dangling-handle.HandleClasses
+    # value:           'std::basic_string_view;std::experimental::basic_string_view'
+  # - key:             misc-definitions-in-headers.HeaderFileExtensions
+    # value:           ',h,hh,hpp,hxx'
+  # - key:             misc-definitions-in-headers.UseHeaderFileExtension
+    # value:           '1'
+  # - key:             misc-misplaced-widening-cast.CheckImplicitCasts
+    # value:           '1'
+  # - key:             misc-move-constructor-init.IncludeStyle
+    # value:           llvm
+  # - key:             misc-move-constructor-init.UseCERTSemantics
+    # value:           '0'
+  # - key:             misc-sizeof-expression.WarnOnSizeOfCompareToConstant
+    # value:           '1'
+  # - key:             misc-sizeof-expression.WarnOnSizeOfConstant
+    # value:           '1'
+  # - key:             misc-sizeof-expression.WarnOnSizeOfThis
+    # value:           '1'
+  # - key:             misc-string-constructor.LargeLengthThreshold
+    # value:           '8388608'
+  # - key:             misc-string-constructor.WarnOnLargeLength
+    # value:           '1'
+  # - key:             misc-suspicious-missing-comma.MaxConcatenatedTokens
+    # value:           '5'
+  # - key:             misc-suspicious-missing-comma.RatioThreshold
+    # value:           '0.200000'
+  # - key:             misc-suspicious-missing-comma.SizeThreshold
+    # value:           '5'
+  # - key:             misc-suspicious-string-compare.StringCompareLikeFunctions
+    # value:           ''
+  # - key:             misc-suspicious-string-compare.WarnOnImplicitComparison
+    # value:           '1'
+  # - key:             misc-suspicious-string-compare.WarnOnLogicalNotComparison
+    # value:           '0'
+  # - key:             misc-throw-by-value-catch-by-reference.CheckThrowTemporaries
+    # value:           '1'
+  # - key:             modernize-loop-convert.MaxCopySize
+    # value:           '16'
+  # - key:             modernize-loop-convert.MinConfidence
+    # value:           reasonable
+  # - key:             modernize-loop-convert.NamingStyle
+    # value:           CamelCase
+  # - key:             modernize-pass-by-value.IncludeStyle
+    # value:           llvm
+  # - key:             modernize-replace-auto-ptr.IncludeStyle
+    # value:           llvm
+  # - key:             modernize-use-nullptr.NullMacros
+    # value:           'NULL'
+  # - key:             performance-faster-string-find.StringLikeClasses
+    # value:           'std::basic_string'
+  # - key:             performance-for-range-copy.WarnOnAllAutoCopies
+    # value:           '0'
+  # - key:             readability-braces-around-statements.ShortStatementLines
+    # value:           '1'
+  # - key:             readability-function-size.BranchThreshold
+    # value:           '4294967295'
+  # - key:             readability-function-size.LineThreshold
+    # value:           '4294967295'
+  # - key:             readability-function-size.StatementThreshold
+    # value:           '800'
+  # - key:             readability-identifier-naming.AbstractClassCase
+    # value:           aNy_CasE
+  # - key:             readability-identifier-naming.AbstractClassPrefix
+    # value:           ''
+  # - key:             readability-identifier-naming.AbstractClassSuffix
+    # value:           ''
+  # - key:             readability-identifier-naming.ClassCase
+    # value:           aNy_CasE
+  # - key:             readability-identifier-naming.ClassConstantCase
+    # value:           aNy_CasE
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+    # value:           ''
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+    # value:           ''
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+    # value:           aNy_CasE
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+    # value:           ''
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+    # value:           ''
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+    # value:           aNy_CasE
+  # - key:             readability-identifier-naming.ClassMethodPrefix
+    # value:           ''
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+    # value:           ''
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+    # value:           ''
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+    # value:           ''
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+    # value:           aNy_CasE
+  # - key:             readability-identifier-naming.ConstantMemberCase
+    # value:           aNy_CasE
+  # - key:             readability-identifier-naming.ConstantMemberPrefix
+    # value:           ''
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+    # value:           ''
+  # - key:             readability-identifier-naming.ConstantParameterCase
+    # value:           aNy_CasE
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+    # value:           ''
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+    # value:           ''
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+    # value:           ''
+  # - key:             readability-identifier-naming.ConstantSuffix
+    # value:           ''
+  # - key:             readability-identifier-naming.ConstexprFunctionCase
+    # value:           aNy_CasE
+  # - key:             readability-identifier-naming.ConstexprFunctionPrefix
+    # value:           ''
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+    # value:           ''
+  # - key:             readability-identifier-naming.ConstexprMethodCase
+    # value:           aNy_CasE
+  # - key:             readability-identifier-naming.ConstexprMethodPrefix
+    # value:           ''
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+    # value:           ''
+  # - key:             readability-identifier-naming.ConstexprVariableCase
+    # value:           aNy_CasE
+  # - key:             readability-identifier-naming.ConstexprVariablePrefix
+    # value:           ''
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+    # value:           ''
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+    # value:           aNy_CasE
+  # - key:             readability-identifier-naming.EnumConstantCase
+    # value:           aNy_CasE
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+    # value:           ''
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+    # value:           ''
+  # - key:             readability-identifier-naming.EnumPrefix
+    # value:           ''
+  # - key:             readability-identifier-naming.EnumSuffix
+    # value:           ''
+  # - key:             readability-identifier-naming.FunctionCase
+    # value:           aNy_CasE
+  # - key:             readability-identifier-naming.FunctionPrefix
+    # value:           ''
+  # - key:             readability-identifier-naming.FunctionSuffix
+    # value:           ''
+  # - key:             readability-identifier-naming.GlobalConstantCase
+    # value:           aNy_CasE
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+    # value:           ''
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+    # value:           ''
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+    # value:           aNy_CasE
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+    # value:           ''
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+    # value:           ''
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+    # value:           aNy_CasE
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+    # value:           ''
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+    # value:           ''
+  # - key:             readability-identifier-naming.IgnoreFailedSplit
+    # value:           '0'
+  # - key:             readability-identifier-naming.InlineNamespaceCase
+    # value:           aNy_CasE
+  # - key:             readability-identifier-naming.InlineNamespacePrefix
+    # value:           ''
+  # - key:             readability-identifier-naming.InlineNamespaceSuffix
+    # value:           ''
+   - key:             readability-identifier-naming.LocalConstantCase
+     value:           lower_case
+   - key:             readability-identifier-naming.LocalConstantPrefix
+     value:           ''
+   - key:             readability-identifier-naming.LocalConstantSuffix
+     value:           ''
+   - key:             readability-identifier-naming.LocalVariableCase
+     value:           lower_case
+   - key:             readability-identifier-naming.LocalVariablePrefix
+     value:           ''
+   - key:             readability-identifier-naming.LocalVariableSuffix
+     value:           ''
+  # - key:             readability-identifier-naming.MemberCase
+    # value:           lower_case
+  # - key:             readability-identifier-naming.MemberPrefix
+    # value:           '_'
+  # - key:             readability-identifier-naming.MemberSuffix
+    # value:           ''
+  # - key:             readability-identifier-naming.MethodCase
+    # value:           aNy_CasE
+  # - key:             readability-identifier-naming.MethodPrefix
+    # value:           ''
+  # - key:             readability-identifier-naming.MethodSuffix
+    # value:           ''
+  # - key:             readability-identifier-naming.NamespaceCase
+    # value:           aNy_CasE
+  # - key:             readability-identifier-naming.NamespacePrefix
+    # value:           ''
+  # - key:             readability-identifier-naming.NamespaceSuffix
+    # value:           ''
+   - key:             readability-identifier-naming.ParameterCase
+     value:           lower_case
+  # - key:             readability-identifier-naming.ParameterPackCase
+    # value:           aNy_CasE
+  # - key:             readability-identifier-naming.ParameterPackPrefix
+    # value:           ''
+  # - key:             readability-identifier-naming.ParameterPackSuffix
+    # value:           ''
+  # - key:             readability-identifier-naming.ParameterPrefix
+    # value:           ''
+   - key:             readability-identifier-naming.ParameterSuffix
+     value:           '_'
+   - key:             readability-identifier-naming.PrivateMemberCase
+     value:           lower_case
+   - key:             readability-identifier-naming.PrivateMemberPrefix
+     value:           '_'
+   - key:             readability-identifier-naming.PrivateMemberSuffix
+     value:           ''
+  # - key:             readability-identifier-naming.PrivateMethodCase
+    # value:           aNy_CasE
+  # - key:             readability-identifier-naming.PrivateMethodPrefix
+    # value:           ''
+  # - key:             readability-identifier-naming.PrivateMethodSuffix
+    # value:           ''
+  # - key:             readability-identifier-naming.ProtectedMemberCase
+    # value:           aNy_CasE
+  # - key:             readability-identifier-naming.ProtectedMemberPrefix
+    # value:           ''
+  # - key:             readability-identifier-naming.ProtectedMemberSuffix
+    # value:           ''
+  # - key:             readability-identifier-naming.ProtectedMethodCase
+    # value:           aNy_CasE
+  # - key:             readability-identifier-naming.ProtectedMethodPrefix
+    # value:           ''
+  # - key:             readability-identifier-naming.ProtectedMethodSuffix
+    # value:           ''
+  # - key:             readability-identifier-naming.PublicMemberCase
+    # value:           aNy_CasE
+  # - key:             readability-identifier-naming.PublicMemberPrefix
+    # value:           ''
+  # - key:             readability-identifier-naming.PublicMemberSuffix
+    # value:           ''
+  # - key:             readability-identifier-naming.PublicMethodCase
+    # value:           aNy_CasE
+  # - key:             readability-identifier-naming.PublicMethodPrefix
+    # value:           ''
+  # - key:             readability-identifier-naming.PublicMethodSuffix
+    # value:           ''
+  # - key:             readability-identifier-naming.StaticConstantCase
+    # value:           aNy_CasE
+  # - key:             readability-identifier-naming.StaticConstantPrefix
+    # value:           ''
+  # - key:             readability-identifier-naming.StaticConstantSuffix
+    # value:           ''
+  # - key:             readability-identifier-naming.StaticVariableCase
+    # value:           aNy_CasE
+  # - key:             readability-identifier-naming.StaticVariablePrefix
+    # value:           ''
+  # - key:             readability-identifier-naming.StaticVariableSuffix
+    # value:           ''
+  # - key:             readability-identifier-naming.StructCase
+    # value:           aNy_CasE
+  # - key:             readability-identifier-naming.StructPrefix
+    # value:           ''
+  # - key:             readability-identifier-naming.StructSuffix
+    # value:           ''
+  # - key:             readability-identifier-naming.TemplateParameterCase
+    # value:           aNy_CasE
+  # - key:             readability-identifier-naming.TemplateParameterPrefix
+    # value:           ''
+  # - key:             readability-identifier-naming.TemplateParameterSuffix
+    # value:           ''
+  # - key:             readability-identifier-naming.TemplateTemplateParameterCase
+    # value:           aNy_CasE
+  # - key:             readability-identifier-naming.TemplateTemplateParameterPrefix
+    # value:           ''
+  # - key:             readability-identifier-naming.TemplateTemplateParameterSuffix
+    # value:           ''
+  # - key:             readability-identifier-naming.TypeTemplateParameterCase
+    # value:           aNy_CasE
+  # - key:             readability-identifier-naming.TypeTemplateParameterPrefix
+    # value:           ''
+  # - key:             readability-identifier-naming.TypeTemplateParameterSuffix
+    # value:           ''
+  # - key:             readability-identifier-naming.TypedefCase
+    # value:           aNy_CasE
+  # - key:             readability-identifier-naming.TypedefPrefix
+    # value:           ''
+  # - key:             readability-identifier-naming.TypedefSuffix
+    # value:           ''
+  # - key:             readability-identifier-naming.UnionCase
+    # value:           aNy_CasE
+  # - key:             readability-identifier-naming.UnionPrefix
+    # value:           ''
+  # - key:             readability-identifier-naming.UnionSuffix
+    # value:           ''
+  # - key:             readability-identifier-naming.ValueTemplateParameterCase
+    # value:           aNy_CasE
+  # - key:             readability-identifier-naming.ValueTemplateParameterPrefix
+    # value:           ''
+  # - key:             readability-identifier-naming.ValueTemplateParameterSuffix
+    # value:           ''
+  # - key:             readability-identifier-naming.VariableCase
+    # value:           aNy_CasE
+  # - key:             readability-identifier-naming.VariablePrefix
+    # value:           ''
+  # - key:             readability-identifier-naming.VariableSuffix
+    # value:           ''
+  # - key:             readability-identifier-naming.VirtualMethodCase
+    # value:           aNy_CasE
+  # - key:             readability-identifier-naming.VirtualMethodPrefix
+    # value:           ''
+  # - key:             readability-identifier-naming.VirtualMethodSuffix
+    # value:           ''
+  # - key:             readability-simplify-boolean-expr.ChainedConditionalAssignment
+    # value:           '0'
+  # - key:             readability-simplify-boolean-expr.ChainedConditionalReturn
+    # value:           '0'
+   - key:             modernize-use-override.OverrideSpelling
+     value:           'ZMQ_OVERRIDE'
+   - key:             modernize-use-override.FinalSpelling
+     value:           'ZMQ_FINAL'

.git-blame-ignore-revs

@@ -0,0 +1,2 @@
+# tree-wide clang format
+41f459e1dc6f7cdedd1268298153c970e290b2ce

.github/CONTRIBUTING.md

@@ -0,0 +1,48 @@
+# Pull Request Notice
+
+Before sending a pull request make sure each commit solves one clear, minimal,
+plausible problem. Further each commit should have the following format:
+
+```
+Problem: X is broken
+
+Solution: do Y and Z to fix X
+```
+
+Please try to have the code changes conform to our coding style. For your
+convenience, you can install clang-format (at least version 5.0) and then
+run ```make clang-format-check```. Don't fix existing issues, if any - just
+make sure your changes are compliant. ```make clang-format-diff``` will
+automatically apply the required changes.
+To set a specific clang-format binary with autotools, you can for example
+run: ```./configure CLANG_FORMAT=clang-format-5.0```
+
+Please avoid sending a pull request with recursive merge nodes, as they
+are impossible to fix once merged. Please rebase your branch on
+zeromq/libzmq master instead of merging it.
+
+```
+git remote add upstream git@github.com:zeromq/libzmq.git
+git fetch upstream
+git rebase upstream/master
+git push -f
+```
+
+In case you already merged instead of rebasing you can drop the merge commit.
+
+```
+git rebase -i HEAD~10
+```
+
+Now, find your merge commit and mark it as drop and save. Finally rebase!
+
+If you are a new contributor please have a look at our contributing guidelines:
+[CONTRIBUTING](http://zeromq.org/docs:contributing)
+
+# FIRST TIME CONTRIBUTORS PLEASE NOTE
+
+Please add an additional commit with a relicensing grant.
+
+[Example](https://github.com/zeromq/libzmq/commit/fecbd42dbe45455fff3b6456350ceca047b82050)
+
+[More information on RELICENSING effort](https://github.com/zeromq/libzmq/tree/master/RELICENSE/README.md)

.github/issue_template.md

@@ -0,0 +1,22 @@
+*Please use this template for reporting suspected bugs or requests for help.*
+
+# Issue description
+
+
+
+# Environment
+
+* libzmq version (commit hash if unreleased): 
+* OS: 
+
+# Minimal test code / Steps to reproduce the issue
+
+1.  
+
+
+# What's the actual result? (include assertion message & call stack if applicable)
+
+
+
+# What's the expected result?
+

.github/stale.yml

@@ -0,0 +1,19 @@
+# Number of days of inactivity before an issue becomes stale
+daysUntilStale: 365
+# Number of days of inactivity before a stale issue is closed
+daysUntilClose: 56
+# Issues with these labels will never be considered stale
+exemptLabels:
+  - "Help Request"
+  - "Feature Request"
+  - "Problem reproduced"
+  - Critical
+# Label to use when marking an issue as stale
+staleLabel: stale
+# Comment to post when marking an issue as stale. Set to `false` to disable
+markComment: >
+  This issue has been automatically marked as stale because it has not had
+  activity for 365 days. It will be closed if no further activity occurs within
+  56 days. Thank you for your contributions.
+# Comment to post when closing a stale issue. Set to `false` to disable
+closeComment: false

.github/workflows/CI.yaml

@@ -0,0 +1,230 @@
+name: CI
+on:
+  push:
+  pull_request:
+  schedule:
+    - cron: "0 9 * * 5"
+
+jobs:
+  build:
+    if: github.event_name == 'pull_request' || github.event_name == 'push'
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - platform: x64
+            configuration: release
+            os: windows-2019
+            WITH_LIBSODIUM: ON
+            ENABLE_CURVE: ON
+            CMAKE_GENERATOR: Visual Studio 16 2019
+            MSVCVERSION: v142
+            MSVCYEAR: vs2019
+            ARTIFACT_NAME: v142-x64
+            ENABLE_DRAFTS: ON
+          - os: ubuntu-latest
+            BUILD_TYPE: default
+            PACKAGES: asciidoctor
+            DRAFT: disabled
+            POLLER: select
+          - os: ubuntu-latest
+            BUILD_TYPE: default
+            DRAFT: disabled
+            POLLER: poll
+          - os: ubuntu-latest
+            BUILD_TYPE: android
+            NDK_VERSION: android-ndk-r25
+            DRAFT: disabled
+          - os: ubuntu-latest
+            BUILD_TYPE: coverage
+            PACKAGES: libkrb5-dev libnorm-dev libpgm-dev libgnutls28-dev lcov
+            DRAFT: enabled
+            GSSAPI: enabled
+            PGM: enabled
+            NORM: enabled
+            TIPC: enabled
+            TLS: enabled
+            VMCI: enabled
+          - os: ubuntu-latest
+            BUILD_TYPE: valgrind
+            PACKAGES: valgrind libgnutls28-dev
+            DRAFT: enabled
+          - os: ubuntu-latest
+            BUILD_TYPE: cmake
+            CURVE: libsodium
+            DRAFT: enabled
+            PACKAGES: cmake libsodium-dev
+            TLS: enabled
+          - os: ubuntu-latest
+            BUILD_TYPE: cmake
+            CURVE: libsodium
+            DRAFT: enabled
+            GSSAPI: enabled
+            PACKAGES: cmake libsodium-dev libkrb5-dev
+            TLS: enabled
+          - os: ubuntu-latest
+            BUILD_TYPE: cmake
+            DRAFT: enabled
+            PACKAGES: cmake clang-format-18
+            DO_CLANG_FORMAT_CHECK: 1
+          - os: ubuntu-latest
+            BUILD_TYPE: default
+            PACKAGES: libkrb5-dev libnorm-dev libpgm-dev libgnutls28-dev libsodium-dev libnss3-dev libbsd-dev
+            CURVE: libsodium
+            ADDRESS_SANITIZER: enabled
+            DRAFT: enabled
+          - os: ubuntu-latest
+            BUILD_TYPE: default
+            PACKAGES: libkrb5-dev libnorm-dev libpgm-dev libgnutls28-dev libsodium-dev libnss3-dev libbsd-dev
+            CURVE: libsodium
+            GSSAPI: enabled
+            PGM: enabled
+            NORM: enabled
+            TIPC: enabled
+            IPv6: ON
+            TLS: enabled
+            USE_NSS: yes
+            VMCI: enabled
+            DRAFT: enabled
+          - os: ubuntu-latest
+            BUILD_TYPE: default
+            PACKAGES: libkrb5-dev libnorm-dev libpgm-dev libgnutls28-dev libsodium-dev libnss3-dev
+            CURVE: libsodium
+            GSSAPI: enabled
+            PGM: enabled
+            NORM: enabled
+            TIPC: enabled
+            IPv6: ON
+            TLS: enabled
+            USE_NSS: yes
+            VMCI: enabled
+            DRAFT: enabled
+            FORCE_98: enabled
+            CXX: clang++
+          - os: ubuntu-latest
+            BUILD_TYPE: abi-compliance-checker
+            PACKAGES: abi-dumper abi-compliance-checker
+            DRAFT: disabled
+          - os: ubuntu-latest
+            BUILD_TYPE: cmake
+            PACKAGES: clang-tidy clang-tools
+            DRAFT: enabled
+            CXX: clang++
+          - os: macos-latest
+            BUILD_TYPE: default
+            PACKAGES: automake autoconf libtool
+            DRAFT: enabled
+          - os: macos-latest
+            BUILD_TYPE: default
+            PACKAGES: automake autoconf libtool libsodium
+            CURVE: libsodium
+            DRAFT: disabled
+    env:
+      platform: ${{ matrix.platform }}
+      configuration: ${{ matrix.configuration }}
+      WITH_LIBSODIUM: ${{ matrix.WITH_LIBSODIUM }}
+      ENABLE_CURVE: ${{ matrix.ENABLE_CURVE }}
+      CMAKE_GENERATOR: ${{ matrix.CMAKE_GENERATOR }}
+      MSVCVERSION: ${{ matrix.MSVCVERSION }}
+      MSVCYEAR: ${{ matrix.MSVCYEAR }}
+      ARTIFACT_NAME: ${{ matrix.ARTIFACT_NAME }}
+      ENABLE_DRAFTS: ${{ matrix.ENABLE_DRAFTS }}
+      SODIUM_INCLUDE_DIR: ${{ github.workspace }}\libsodium\src\libsodium\include"
+      SODIUM_LIBRARY_DIR: ${{ github.workspace }}\libsodium\bin\${{ matrix.platform }}\${{ matrix.configuration }}\${{ matrix.MSVCVERSION }}\dynamic"
+      LIBZMQ_SRCDIR: ${{ github.workspace }}\libzmq
+      BUILD_TYPE: ${{ matrix.BUILD_TYPE }}
+      CURVE: ${{ matrix.CURVE }}
+      DRAFT: ${{ matrix.DRAFT }}
+      ADDRESS_SANITIZER: ${{ matrix.ADDRESS_SANITIZER }}
+      DO_CLANG_FORMAT_CHECK: ${{ matrix.DO_CLANG_FORMAT_CHECK }}
+      FORCE_98: ${{ matrix.FORCE_98 }}
+      CXX: ${{ matrix.CXX }}
+      GSSAPI: ${{ matrix.GSSAPI }}
+      PGM: ${{ matrix.PGM }}
+      NORM: ${{ matrix.NORM }}
+      TIPC: ${{ matrix.TIPC }}
+      IPv6: ${{ matrix.IPv6 }}
+      TLS: ${{ matrix.TLS }}
+      USE_NSS: ${{ matrix.USE_NSS }}
+      VMCI: ${{ matrix.VMCI }}
+      POLLER: ${{ matrix.POLLER }}
+      NDK_VERSION: ${{ matrix.NDK_VERSION }}
+      ANDROID_NDK_ROOT: /tmp/${{ matrix.NDK_VERSION }}
+    steps:    
+    - name: Add msbuild to PATH
+      uses: microsoft/setup-msbuild@v1.0.2
+      if: matrix.os == 'windows-2019'
+    - uses: actions/checkout@v2
+      if: matrix.WITH_LIBSODIUM == 'ON'
+      with:
+        repository: jedisct1/libsodium
+        ref: stable
+        path: libsodium
+    - name: Compile libsodium
+      if: matrix.WITH_LIBSODIUM == 'ON' && matrix.os == 'windows-2019'
+      shell: cmd
+      working-directory: libsodium
+      run: msbuild /v:minimal /p:Configuration=%Configuration%DLL builds\msvc\%MSVCYEAR%\libsodium\libsodium.vcxproj
+    - name: Copy libsodium
+      if: matrix.WITH_LIBSODIUM == 'ON' && matrix.os == 'windows-2019'
+      shell: powershell
+      working-directory: libsodium
+      run: Copy-Item "bin\${env:Platform}\${env:Configuration}\${env:MSVCVERSION}\dynamic\libsodium.lib" -Destination "bin\${env:Platform}\${env:Configuration}\${env:MSVCVERSION}\dynamic\sodium.lib"
+    - uses: actions/checkout@v2    
+      with:    
+        path: libzmq
+    - run: md build_libzmq
+      shell: cmd
+      if: matrix.os == 'windows-2019'
+    - name: build-win
+      if: matrix.os == 'windows-2019'
+      shell: cmd
+      working-directory: build_libzmq
+      run: |        
+        cmake -D CMAKE_INCLUDE_PATH="%SODIUM_INCLUDE_DIR%" -D CMAKE_LIBRARY_PATH="%SODIUM_LIBRARY_DIR%" -D WITH_LIBSODIUM="%WITH_LIBSODIUM%" -D ENABLE_DRAFTS="%ENABLE_DRAFTS%" -D ENABLE_ANALYSIS="%ENABLE_ANALYSIS%" -D ENABLE_CURVE="%ENABLE_CURVE%" -D API_POLLER="%API_POLLER%" -D POLLER="%POLLER%" %EXTRA_FLAGS% -D WITH_LIBSODIUM="%WITH_LIBSODIUM%" -D LIBZMQ_WERROR="%LIBZMQ_WERROR%" -G "%CMAKE_GENERATOR%" "%LIBZMQ_SRCDIR%"
+        cmake --build . --config %configuration% --target install -- -verbosity:Minimal -maxcpucount           
+    - name: test
+      if: matrix.os == 'windows-2019'
+      shell: cmd
+      working-directory: build_libzmq
+      run: ctest -C "%Configuration%"
+    - name: Add debian packages
+      if: matrix.os == 'ubuntu-latest' && (matrix.BUILD_TYPE != 'coverage' || github.repository == 'zeromq/libzmq')
+      uses: myci-actions/add-deb-repo@10
+      with:
+        repo-name: obs
+        repo: deb http://download.opensuse.org/repositories/network:/messaging:/zeromq:/git-stable/xUbuntu_20.04/ ./
+        keys-asc: https://download.opensuse.org/repositories/network:/messaging:/zeromq:/git-stable/xUbuntu_20.04/Release.key
+        install: ${{ matrix.PACKAGES }}
+    - name: Add brew packages
+      if: matrix.os == 'macos-latest'
+      shell: bash
+      run: brew install ${{ matrix.PACKAGES }}
+    - name: build
+      if: (matrix.os == 'ubuntu-latest' || matrix.os == 'macos-latest') && (matrix.BUILD_TYPE != 'coverage' || github.repository == 'zeromq/libzmq')
+      shell: bash
+      working-directory: libzmq
+      run: ./ci_build.sh
+    - name: coveralls
+      if: matrix.BUILD_TYPE == 'coverage' && github.repository == 'zeromq/libzmq'
+      uses: coverallsapp/github-action@master
+      with:
+        github-token: ${{ secrets.GITHUB_TOKEN }}
+        path-to-lcov: /home/runner/work/libzmq/libzmq/libzmq/lcov.info
+  cron:
+    runs-on: ubuntu-latest
+    if: github.event_name == 'schedule'
+    strategy:
+      fail-fast: false
+    env:
+      BUILD_TYPE: cmake
+      CXX: clang++
+      CLANG_TIDY: clang-tidy
+    steps:
+    - name: Add debian packages
+      run: sudo apt-get install --yes clang-tidy clang-tools
+    - name: build
+      shell: bash
+      working-directory: libzmq
+      run: ./ci_build.sh

.github/workflows/Docs.yaml

@@ -0,0 +1,50 @@
+# Simple workflow for deploying static content to GitHub Pages
+name: Deploy API docs content to Pages
+
+on:
+  # Runs on pushes targeting the default branch
+  push:
+    branches: ["master"]
+
+  # Allows you to run this workflow manually from the Actions tab
+  workflow_dispatch:
+
+# Sets permissions of the GITHUB_TOKEN to allow deployment to GitHub Pages
+permissions:
+  contents: read
+  pages: write
+  id-token: write
+
+# Allow only one concurrent deployment, skipping runs queued between the run in-progress and latest queued.
+# However, do NOT cancel in-progress runs as we want to allow these production deployments to complete.
+concurrency:
+  group: "pages"
+  cancel-in-progress: false
+
+jobs:
+  # Single deploy job since we're just deploying
+  deploy:
+    environment:
+      name: github-pages
+      url: ${{ steps.deployment.outputs.page_url }}
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+
+      ## libzmq-specific CI/CD ##
+      - name: Install AsciiDoctor
+        run: sudo apt install -y asciidoctor
+      - name: Convert AsciiDoc with AsciiDoctor into HTML
+        run: ./autogen.sh && ./configure && make --directory=doc
+
+      ## boilerplate steps to publish github Pages ##
+      - name: Setup Pages
+        uses: actions/configure-pages@v3
+      - name: Upload artifact
+        uses: actions/upload-pages-artifact@v2
+        with:
+          path: 'doc/'
+      - name: Deploy to GitHub Pages
+        id: deployment
+        uses: actions/deploy-pages@v2

.github/workflows/Fuzzers.yaml

@@ -0,0 +1,35 @@
+name: Fuzzers
+on:
+  push:
+    branches:
+      - master
+  pull_request:
+    paths:
+      - '.github/workflows/Fuzzers.yaml'
+      - 'src/*'
+      - 'tests/*fuzzer.cpp'
+jobs:
+  Fuzzing:
+    runs-on: ubuntu-latest
+    if: github.repository == 'zeromq/libzmq'
+    strategy:
+      matrix:
+        san: [address, memory, undefined]
+    steps:
+    - name: Build Fuzzers (${{ matrix.san }})
+      id: build
+      uses: google/oss-fuzz/infra/cifuzz/actions/build_fuzzers@master
+      with:
+        sanitizer: ${{ matrix.san }}
+        oss-fuzz-project-name: 'libzmq'
+        allowed-broken-targets-percentage: 0
+        dry-run: false
+    - name: Run Fuzzers (${{ matrix.san }})
+      id: run
+      uses: google/oss-fuzz/infra/cifuzz/actions/run_fuzzers@master
+      with:
+        sanitizer: ${{ matrix.san }}
+        oss-fuzz-project-name: 'libzmq'
+        allowed-broken-targets-percentage: 0
+        dry-run: false
+        fuzz-seconds: 300

.gitignore

@@ -1,15 +1,52 @@
 syntax: glob # for hg-git users
-Makefile
-Makefile.in
-configure
+
+# Generated build scripts and IDE generating files
+## autotools
+/Makefile
+builds/Makefile
+builds/deprecated-msvc/Makefile
+doc/Makefile
+doc/__pagelist
 libtool
+### automake
+Makefile.in
+.deps/
+.dirstamp
+### autoconf
+autom4te.cache
+aclocal.m4
 config
 config.status
 config.log
-aclocal.m4
-autom4te.cache
+configure
+stamp-h1
+## CMake
+cmake-build-debug/
+build/
+## Android
+builds/android/prefix
+## IntelliJ
+.idea/
+## Visual Code
+.vscode/
+## other results-like folders
+bin/
+lib/
+obj/
+## Doxygen
+doxygen/
+## Packaging 
+packaging/nuget/*.nupkg
+
+# Test related build files
+libtestutil.a
+libunity.a
+
+# Some build outputs and temporal files
 *.o
 *.gcno
+*.gcda
+*.gcov
 *.ncb
 *.lo
 *.loT
@@ -18,118 +55,69 @@ autom4te.cache
 *.html
 *.pdf
 *.ps
-.*
 *~
 .*~
-tools/curve_keygen
-test_resource
-test_ipc_wildcard
-test_stream_empty
-test_stream_timeout
-test_issue_566
-test_ctx_destroy
-test_term_endpoint
-test_system
-test_monitor
-test_last_endpoint
-test_pair_inproc
-test_pair_ipc
-test_pair_tcp
-test_reqrep_inproc
-test_reqrep_ipc
-test_reqrep_tcp
-test_shutdown_stress
-test_hwm
-test_timeo
-test_reqrep_device
-test_reqrep_drop
-test_sub_forward
-test_invalid_rep
-test_msg_flags
-test_ts_context
-test_connect_resolve
-test_immediate
-test_term_endpoint
-test_router_mandatory
-test_disconnect_inproc
-test_unbind_inproc
-test_unbind_wildcard
-test_raw_sock
-test_disconnect_inproc
-test_ctx_options
-test_iov
-test_security
-test_security_curve
-test_probe_router
-test_stream
-test_spec_dealer
-test_spec_pushpull
-test_spec_rep
-test_spec_req
-test_spec_router
-test_req_correlate
-test_req_relaxed
-test_fork
-test_conflate
-test_inproc_connect
-test_linger
-test_security_null
-test_security_plain
-test_proxy
-test_proxy_single_socket
-test_proxy_terminate
-test_abstract_ipc
-test_filter_ipc
-test_connect_delay_tipc
-test_pair_tipc
-test_reqrep_device_tipc
-test_reqrep_tipc
-test_router_handover
-test_router_mandatory_tipc
-test_shutdown_stress_tipc
-test_sub_forward_tipc
-test_term_endpoint_tipc
-test_many_sockets
-test_diffserv
-test_connect_rid
-test_srcfd
-test_stream_disconnect
-test_proxy_chain
-test_bind_src_address
-test_metadata
-test_id2fd
-test_capabilities
-test_hwm_pubsub
-test_router_mandatory_hwm
-test_xpub_nodrop
-test_getsockopt_memset
-test*.log
-test*.trs
+.libs
+
+# /src
+## Ignore generated files in configuration process
 src/platform.hpp*
-src/stamp-h1
-perf/local_lat
-perf/local_thr
-perf/remote_lat
-perf/remote_thr
-perf/inproc_lat
-perf/inproc_thr
-doc/*.1
-doc/*.3
-doc/*.7
+src/libzmq.pc
+
+# /tools
+## Executable binaries are ignored
+tools/curve_keygen
+## Executable source files must be tracked
+!tools/*.[ch]
+!tools/*.[ch]pp
+
+# /tests
+## Test binaries and logs are ignored
+tests/test*
+tests/test*.log
+tests/test*.trs
+## Test source files must be tracked
+!tests/test*.[ch]
+!tests/test*.[ch]pp
+## Build script and documentations must be tracked
+!tests/CMakeLists.txt
+!tests/README.md
+
+# /unittests
+## Unit test binaries and logs are ignored
+unittests/unittest_*
+unittests/unittest*.log
+unittests/unittest*.trs
+## Unit test source files must be tracked
+!unittests/unittest*.[ch]
+!unittests/unittest*.[ch]pp
+## Build script and documentations must be tracked
+!unittests/CMakeLists.txt
+!unittests/README.md
+
+# check test log files
+test-suite*.log
+
+# /perf
+## Benchmarking binaries and result files are ignored
+perf/*_lat
+perf/*_thr
+perf/benchmark_*
+perf/results
+## Benchmarking source files must be tracked
+!perf/*.[ch]
+!perf/*.[ch]pp
+## Benchmarking tool scripts must be tracked
+!perf/*.py
+!perf/*.sh
+
+# /doc
+## Generated document files 
+doc/*.[137]
 doc/*.html
 doc/*.xml
-src/libzmq.pc
-bin/
-lib/
-obj/
-builds/msvc/**/*.opensdf
-builds/msvc/**/*.suo
-builds/msvc/**/*.sdf
-builds/msvc/**/*.user
-builds/msvc/**/*Debug
-builds/msvc/**/*Release
-builds/redhat/zeromq.spec
-packaging/nuget/*.nupkg
+
+# external libraries and release archive files
 foreign/openpgm/*
 !foreign/openpgm/*.tar.bz2
 !foreign/openpgm/*.tar.gz
@@ -137,12 +125,5 @@ foreign/openpgm/*
 zeromq-*.tar.gz
 zeromq-*.zip
 core
-build
-test-suite.log
-curve_keygen
-inproc_lat
-inproc_thr
-local_lat
-local_thr
-remote_lat
-remote_thr
+
+mybuild

.mailmap

@@ -0,0 +1,81 @@
+Ahmet Kakici <ahmet.kakici@pro-line.com.tr> ahmet <ahmet.kakici@pro-line.com.tr>
+Andrey Sibiryov <me@kobology.ru> Kobolog <me@kobology.ru>
+Brian Knox <taotetek@gmail.com> taotetek <taotetek@users.noreply.github.com>
+Chernyshev Vyacheslav <astellar@ro.ru> Astellar <astellar@ro.ru>
+Chris Laws <clawsicus@gmail.com> Chris Laws <claws@localhost>
+Chris Staite <chris@yourdreamnet.co.uk> Chris <chris@yourdreamnet.co.uk>
+Christoph Zach <czach@rst-automation.com> czach <czach@rst-automation.com>
+Chuck Remes <git@chuckremes.com> Chuck Remes <cremes@mac.com>
+Chuck Remes <git@chuckremes.com> Chuck Remes <cremes.devlist@mac.com>
+Constantin Rack <constantin.rack@gmail.com> Constantin Rack <constantin@rack.li>
+Constantin Rack <constantin.rack@gmail.com> Constantin Rack <c-rack@users.noreply.github.com>
+Daniel Krikun <krikun.daniel@gmail.com> danielkr <krikun.daniel@gmail.com>
+Daiyu Hurst <daiyu.hurst@gmail.com> DaiyuHurst <daiyu.hurst@gmail.com>
+Diego Rodriguez-Losada <diego.rlosada@gmail.com> Diego <diego.rlosada@gmail.com>
+Dongmin Yu <miniway@gmail.com> Min(Dongmin Yu) <miniway@gmail.com>
+Doron Somech <somdoron@gmail.com> somdoron <somdoron@gmail.com>
+Elliot Saba <staticfloat@gmail.com> staticfloat <staticfloat@gmail.com>
+Eric Voskuil <eric@voskuil.org> evoskuil <eric@voskuil.org>
+Eric Voskuil <eric@voskuil.org> anonymous <eric@voskuil.org>
+Felipe Farinon <felipe.farinon@powersyslab.com> psl-felipefarinon <felipe.farinon@powersyslab.com>
+Frank Hartmann <soundart@gmx.net> Frank <soundart@gmx.net>
+Gian Lorenzo Meocci <glmeocci@gmail.com> meox <glmeocci@gmail.com>
+Hardeep Singh <hshardeesi@gmail.com> Hardeep <hshardeesi@gmail.com>
+Henrik Feldt <henrik@haf.se> Henrik <henrik@haf.se>
+Huang Xin <chrox.huang@gmail.com> chrox <chrox.huang@gmail.com>
+Ian Barber <ian.barber@gmail.com> Ian Barber <ianbarber@google.com>
+Jens Auer <jens.auer@cgi.com> Jens Auer <jens-auer@users.noreply.github.com>
+Jens Auer <jens.auer@cgi.com> Jens Auer <jens.auer@betaversion.net>
+Joe Eli McIlvain <joe.eli.mac@gmail.com> Joe McIlvain <joe.eli.mac@gmail.com>
+Jos Decoster <jos.decoster@gmail.com> jdc8 <jos.decoster@gmail.com>
+Jos Decoster <jos.decoster@gmail.com> Jos Decoster <jos.decoster@retarget.com>
+Joshua Gao <jmg116@gmail.com> Josh Gao <jgao@mobileiron.com>
+Jörg Kreuzberger <joerg@kreuzberger.eu> kreuzberger <joerg@kreuzberger.eu>
+Arnaud Kapp <kapp.arno@gmail.com> Kapp Arnaud <kapp.arno@gmail.com>
+Arnaud Kapp <kapp.arno@gmail.com> KAPP Arnaud <kapp.arno@gmail.com>
+Arnaud Kapp <kapp.arno@gmail.com> KAPP Arnaud <xaqq@users.noreply.github.com>
+Kenneth Wilke <kenneth.wilke@rackspace.com> KennethWilke <kenneth.wilke@rackspace.com>
+Kevin Sapper <mail@kevinsapper.de> sappo <mail@kevinsapper.de>
+Kevin Sapper <mail@kevinsapper.de> Kevin Sapper <sappo@users.noreply.github.com>
+Leonard Michelet <leonard.michelet@openwide.fr> leonarf <leonard.michelet@openwide.fr>
+Martijn Jasperse <m.jasperse@gmail.com> mjasperse <m.jasperse@gmail.com>
+Martin Hurton <hurtonm@gmail.com> Martin Hurtoň <hurtonm@gmail.com>
+Martin Lucina <martin@lucina.net> Martin Lucina <mato@kotelna.sk>
+Martin Sustrik <sustrik@250bpm.com> Martin Sustrik <sustrik@fastmq.commkdir>
+Martin Sustrik <sustrik@250bpm.com> Martin Sustrik <sustrik@fastmq.com>
+Martin Sustrik <sustrik@250bpm.com> sustrik <sustrik@250bpm.com>
+Martin Sustrik <sustrik@250bpm.com> Martin Sustrik <sustrik@jozsi.(none)>
+Martin Sustrik <sustrik@250bpm.com> unknown <sustrik@.(none)>
+Martin Sustrik <sustrik@250bpm.com> Martin Sustrik <sustrik@turist.(none)>
+Maurice Barnum <msb@yahoo-inc.com> maurice barnum <msb@yahoo-inc.com>
+Maurizio Melato <maurizio.melato@nice-software.com> unknown <mauri@okinawa.(none)>
+Max Skaller <Max.Skaller@gmail.com> skaller <Max.Skaller@gmail.com>
+Michael Fox <415fox@gmail.com> m <415fox@gmail.com>
+Michael Hand <mipa@matrix.by> Mipa <mipa@matrix.by>
+Michel Zou <xantares10@hotmail.com> xantares <xantares09@hotmail.com>
+Mikael Helbo Kjaer <mhk@designtech.dk> Mikael Helbo Kjær <mhk@designtech.dk>
+Mike Gatny <mgatny@gmail.com> Mike Gatny <mgatny@connamara.com>
+Mikko Koppanen <mikko.koppanen@gmail.com> Mikko Koppanen <mkoppanen@php.net>
+Mikko Koppanen <mikko.koppanen@gmail.com> Mikko Koppanen <mikko@kuut.io>
+Mikko Koppanen <mikko.koppanen@gmail.com> Mikko Koppanen <mkoppanen@gameboy.config>
+Min RK <benjaminrk@gmail.com> MinRK <benjaminrk@gmail.com>
+Min RK <benjaminrk@gmail.com> Min Ragan-Kelley <benjaminrk@gmail.com>
+Montoya Edu <montoya.edu@gmail.com> montoyaedu <montoya.edu@gmail.com>
+Nikita Kozlov <nikita@elyzion.net> nikita kozlov <nikita@elyzion.net>
+Pavol Malosek <malosek@fastmq.com> malosek <malosek@fastmq.com>
+Pieter Hintjens <ph@imatix.com> Pieter Hintjens <ph@itmatix.com>
+Reza Ebrahimi <reza.ebrahimi.dev@gmail.com> reza.ebrahimi <reza.ebrahimi.dev@gmail.com>
+Ricardo Catalinas Jiménez <r@untroubled.be> Ricardo Catalinas Jiménez <jimenezrick@gmail.com>
+Rohan Bedarkar <rohanb@cs.uchicago.edu> rohanbedarkar <rohanb@cs.uchicago.edu>
+Rohan Bedarkar <rohanb@cs.uchicago.edu> Rohan <rbe@ws5-34-chi.rtsgroup.net>
+Sergey KHripchenko <shripchenko@intermedia.net> root <root@ast-pbx-mt-3.intermedia.net>
+Sergey KHripchenko <shripchenko@intermedia.net> shripchenko <shripchenko@intermedia.net>
+Sergey M. <dstftw@gmail.com> Sergey M․ <dstftw@gmail.com>
+Steven McCoy <steven.mccoy@miru.hk> Steve-o <fnjordy@gmail.com>
+Tamara Kustarova <kustarova@fastmq.com> tamara <tamara@jozsi.(none)>
+Timothee Besset <ttimo@ttimo.net> Timothee "TTimo" Besset <ttimo@ttimo.net>
+Timothy Mossbarger <tim@ent.net> Tim M <tim@ent.net>
+Trevor Bernard <trevor.bernard@gmail.com> Trevor Bernard <tbernard@liveops.com>
+Trevor Bernard <trevor.bernard@gmail.com> Trevor Bernard <trevor.bernard@userevents.com>
+Volodymyr Korniichuk <VolodymyrKorn@gmail.com> Volodymyr Korniichuk <9173519@gmail.com>
+lysyloren <lysy_loren@gmail.com> lysyloren <lysy.loren@gmail.com>

.obs/workflows.yml

@@ -0,0 +1,26 @@
+workflow:
+  steps:
+    - branch_package:
+        source_project: network:messaging:zeromq:git-draft
+        source_package: libzmq
+        target_project: network:messaging:zeromq:ci
+rebuild:
+  steps:
+    - trigger_services:
+        project: network:messaging:zeromq:git-stable
+        package: libzmq
+    - trigger_services:
+        project: network:messaging:zeromq:git-draft
+        package: libzmq
+  filters:
+    event: push
+release:
+  steps:
+    - trigger_services:
+        project: network:messaging:zeromq:release-stable
+        package: libzmq
+    - trigger_services:
+        project: network:messaging:zeromq:release-draft
+        package: libzmq
+  filters:
+    event: tag_push

.readthedocs.yaml

@@ -0,0 +1,38 @@
+#
+# libzmq readthedocs.io integration
+#
+# This configuration file is processed by readthedocs.io to rebuild the
+# libzmq documentation using Asciidoctor, see
+#   https://docs.readthedocs.io/en/stable/build-customization.html#asciidoc
+
+version: "2"
+
+formats:
+  - htmlzip
+
+build:
+  os: "ubuntu-22.04"
+  tools:
+    nodejs: "20"
+  # NOTE: as of Nov 2023, build.apt_packages is NOT considered when using build.commands
+  #apt_packages:
+  #  - automake
+  #  - autoconf
+  #  - cmake
+  #  - libtool
+  commands:
+    # install required tools
+    - npm install -g asciidoctor
+
+    # HTML docs
+    # ---------
+    - doc/create_page_list.sh "$(pwd)/doc/__pagelist" "$(pwd)/doc"
+    - asciidoctor --backend html --destination-dir $READTHEDOCS_OUTPUT/html --attribute stylesheet=asciidoctor.css --attribute zmq_version='4.3.6' --attribute zmq_pagelist_dir=$(pwd)/doc doc/*.adoc
+
+    # HTMLZIP docs
+    # ------------
+    # Note that for usability we make sure zip will create a zipfile containing just a flat list of HTML files; 
+    # to achieve that it's important to avoid storing absolute paths when invoking "zip", thus we use -j
+    # Also note that the archive name should match exactly the project slug, "libzmq" in this case.
+    - mkdir -p $READTHEDOCS_OUTPUT/htmlzip/
+    - cd $READTHEDOCS_OUTPUT/html && zip -j ../htmlzip/libzmq.zip *.html

.travis.yml

@@ -4,39 +4,27 @@ language: c
 
 os:
 - linux
-- osx
 
-sudo: false
+dist: bionic
+
+cache: ccache
 
 env:
- global:
-  - BUILD_PREFIX=$PWD/tmp
-  - CFLAGS=-I${BUILD_PREFIX}/include
-  - CPPFLAGS=-I${BUILD_PREFIX}/include
-  - CXXFLAGS=-I${BUILD_PREFIX}/include
-  - LDFLAGS=-L${BUILD_PREFIX}/lib
-  - PKG_CONFIG_PATH=${BUILD_PREFIX}/lib/pkgconfig
-  - DISTCHECK_CONFIGURE_FLAGS="--with-libsodium --prefix=${BUILD_PREFIX}"
+  matrix:
+    - BUILD_TYPE=default
+  # tokens to deploy releases on OBS and create/delete temporary branch on Github.
+  # 1) Create a token on https://github.com/settings/tokens/new with "public_repo"
+  #    capability and encrypt it with travis encrypt --org -r zeromq/libzmq GH_TOKEN="<token>"
+  # 2) Create 2 OBS tokens with osc token --create network:messaging:zeromq:release-<stable|draft> libzmq
+  #    encrypt them with travis encrypt --org -r zeromq/libzmq OBS_<STABLE|DRAFT>_TOKEN="<token>"
+  global:
+    - secure: aaIs9Y44FYp9VFCqa6LLD4illBH4aUfbS0zzzbAQ5xJvD6NfBsMiKEIhf/kRNCHAtP+1VfQVOejTD6/i08ALsVr3cZD9oB/t7874tz2/jeZUIhRNo+1KwyaVqNg0yUSV6ASIoq4aOfuGnjBlezNQ8LQ2bjQB2m4Enl5wxoYcYdA=
+    - secure: YFrcedBIKe0NR1WC6qQi9phZgtnzOiBIXm40TirvCtstV4eVnSouKgtQfLLArZ4o2tjflq4grQQNo1rJatvyi5YPOXsMcndsni18S+4Ffu8qbECdtPrK52vBweuf7q9oV9Ydax0Fm4bEqEMOZ2/mRBy3nK+mgsE3upeMwyWR0Zw=
+    - secure: lbZSzmqN39QdJwewKOZgq/1ijPKuyx9MFrGzMqXj2+eOSlaZS/tNavHMdKJOev+qJGK9wxmwzxOxS10AiH+AvN7WBacXX4ZtudjScz2HKJRDWTKyzMbzyScq51afniItzrsm+Vo8NHkenNFkux0sSbh0aHlpkLwrGQu+WZWcDN4=
+    - secure: "ZFL7hLJlGwYix8fF835OnQYakBt/o5iS7IfSW7el44ejEvGAOM9O5/ufxCcqSqn8Np7nOaM3RriAVTqWPZD6S7tMeflGTSGYHPYwWUc83z4rUPyG2FWVKXdB8ufpebAwu3hCgLiSmVeoQG47dl6xNk1oKCd+3UIjgz33u1Ecfps="
 
-before_install:
-# workaround for Travis OSX CI bug, hasn't been fixed in a month so time for a hack
-- if [ $TRAVIS_OS_NAME == "osx" ] ; then brew uninstall libtool && brew install libtool ; fi
-
-#   Build required projects first
-before_script:
-- mkdir tmp
-#   libsodium
-- git clone --depth 1 -b stable git://github.com/jedisct1/libsodium.git
-- ( cd libsodium; ./autogen.sh; ./configure --prefix=${BUILD_PREFIX}; make check; make install )
-
-# ZMQ stress tests need more open socket (files) than the usual default
-# On OSX, it seems the way to set the max files limit is constantly changing, so
-# try to use all known knobs to ensure compatibility across various versions
-- if [ $TRAVIS_OS_NAME == "osx" ] ; then sudo sysctl -w kern.maxfiles=64000 ; sudo sysctl -w kern.maxfilesperproc=64000 ; sudo launchctl limit maxfiles 64000 64000 ; fi ; ulimit -n 64000
-
-#   Build and check this project
-script:
-- ./autogen.sh && ./configure --with-libsodium --prefix=${BUILD_PREFIX} && make distcheck
+# Build and check this project according to the BUILD_TYPE
+script: ./ci_build.sh
 
 # Deploy tags
 before_deploy:
@@ -44,12 +32,12 @@ before_deploy:
 deploy:
   provider: releases
   api_key:
-    secure: "C+hbVQQL62twHIit4vjExT908acpjQzxPvCgnKKVdEYm58+rXVvQ4HzOlNve7py522m/2iazwnJDX5bPskES5Kof3jqTJ2hZI9rcFXh1KuEjUojiPwix/mUnxFYcxS4PhgmyqG3z5YUsEXnDhwkOwsAVnQIJUFV1XAWMWwDCilI="
+    secure: vGB5E+A8wxm2J1GJZzmIgT9PrjEzvd9gE8iui8FyxSbxAsW9vFZFGZC/21sTtpVcmRarwQCHH1UEbtg+nJwN2iD9YzMRnSVks8xqP+b709YW+VXaMuhZgTzWa74IorQku7NuvLibvQk72/OSgdwPGaNJ6f5AX9pnWVWbEoW1svE=
   file_glob: true
-  file: ${ZEROMQ41_DEPLOYMENT}
+  file: ${LIBZMQ_DEPLOYMENT}
   skip_cleanup: true
   on:
-    repo: zeromq/zeromq4-1
+    repo: zeromq/libzmq
     branch: master
     tags: true
-    condition: "$TRAVIS_OS_NAME =~ (linux)"
+    condition: "$TRAVIS_OS_NAME =~ (linux) && $BUILD_TYPE =~ (default) && $CURVE =~ (libsodium) && -z $DRAFT"

AUTHORS

@@ -1,13 +1,15 @@
 Corporate Contributors
 ======================
 
-Copyright (c) 2007-2015 iMatix Corporation
+Copyright (c) 2007-2014 iMatix Corporation
 Copyright (c) 2009-2011 250bpm s.r.o.
 Copyright (c) 2010-2011 Miru Limited
 Copyright (c) 2011 VMware, Inc.
 Copyright (c) 2012 Spotify AB
 Copyright (c) 2013 Ericsson AB
 Copyright (c) 2014 AppDynamics Inc.
+Copyright (c) 2015 Google, Inc.
+Copyright (c) 2015-2016 Brocade Communications Systems Inc.
 
 Individual Contributors
 =======================
@@ -15,16 +17,18 @@ Individual Contributors
 AJ Lewis
 Alexej Lotz
 Andrew Thompson
+André Caron
 Asko Kauppi
 Attila Mark
 Barak Amar
 Ben Gray
-Bernd Prager
 Bernd Melchers
+Bernd Prager
 Bob Beaty
 Brandon Carpenter
-Brian Buchanan
 Brett Cameron
+Brett Viren
+Brian Buchanan
 Burak Arslan
 Carl Clemens
 Chia-liang Kao
@@ -35,9 +39,12 @@ Christian Gudrian
 Christian Kamm
 Chuck Remes
 Conrad D. Steenberg
+Constantin Rack
+Daniel J. Bernstein
 Dhammika Pathirana
 Dhruva Krishnamurthy
 Dirk O. Kaar
+Doron Somech
 Douglas Creager
 Drew Crawford
 Erich Heine
@@ -50,15 +57,22 @@ Gerard Toonstra
 Ghislain Putois
 Gonzalo Diethelm
 Guido Goldstein
+Harald Achitz
+Hardeep Singh
+Hiten Pandya
 Ian Barber
 Ilja Golshtein
+Ilya Kulakov
 Ivo Danihelka
 Jacob Rideout
 Joe Thornber
 Jon Dyte
 Kamil Shakirov
 Ken Steele
-Laurent Alebarde
+Kouhei Sutou
+Leonardo J. Consoni
+Lionel Flandrin
+Lourens Naudé
 Luca Boccassi
 Marc Rossi
 Mark Barbisan
@@ -77,6 +91,7 @@ Mikko Koppanen
 Min Ragan-Kelley
 Neale Ferguson
 Nir Soffer
+Osiris Pedroso
 Paul Betts
 Paul Colomiets
 Pavel Gushcha
@@ -86,6 +101,7 @@ Peter Bourgon
 Philip Kovacs
 Pieter Hintjens
 Piotr Trojanek
+Reza Ebrahimi
 Richard Newton
 Rik van der Heijden
 Robert G. Jakabosky
@@ -99,14 +115,12 @@ Tero Marttila
 Terry Wilson
 Thijs Terlouw
 Thomas Rodgers
+Tim Mossbarger
 Toralf Wittner
 Tore Halvorsen
 Trevor Bernard
 Vitaly Mayatskikh
-Lourens Naudé
-Hardeep Singh
-André Caron
-Tim Mossbarger
+Yacheng Zhou
 
 Credits
 =======

COPYING

@@ -1,674 +0,0 @@
-                      GNU GENERAL PUBLIC LICENSE
-                       Version 3, 29 June 2007
-
- Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
- Everyone is permitted to copy and distribute verbatim copies
- of this license document, but changing it is not allowed.
-
-                            Preamble
-
-  The GNU General Public License is a free, copyleft license for
-software and other kinds of works.
-
-  The licenses for most software and other practical works are designed
-to take away your freedom to share and change the works.  By contrast,
-the GNU General Public License is intended to guarantee your freedom to
-share and change all versions of a program--to make sure it remains free
-software for all its users.  We, the Free Software Foundation, use the
-GNU General Public License for most of our software; it applies also to
-any other work released this way by its authors.  You can apply it to
-your programs, too.
-
-  When we speak of free software, we are referring to freedom, not
-price.  Our General Public Licenses are designed to make sure that you
-have the freedom to distribute copies of free software (and charge for
-them if you wish), that you receive source code or can get it if you
-want it, that you can change the software or use pieces of it in new
-free programs, and that you know you can do these things.
-
-  To protect your rights, we need to prevent others from denying you
-these rights or asking you to surrender the rights.  Therefore, you have
-certain responsibilities if you distribute copies of the software, or if
-you modify it: responsibilities to respect the freedom of others.
-
-  For example, if you distribute copies of such a program, whether
-gratis or for a fee, you must pass on to the recipients the same
-freedoms that you received.  You must make sure that they, too, receive
-or can get the source code.  And you must show them these terms so they
-know their rights.
-
-  Developers that use the GNU GPL protect your rights with two steps:
-(1) assert copyright on the software, and (2) offer you this License
-giving you legal permission to copy, distribute and/or modify it.
-
-  For the developers' and authors' protection, the GPL clearly explains
-that there is no warranty for this free software.  For both users' and
-authors' sake, the GPL requires that modified versions be marked as
-changed, so that their problems will not be attributed erroneously to
-authors of previous versions.
-
-  Some devices are designed to deny users access to install or run
-modified versions of the software inside them, although the manufacturer
-can do so.  This is fundamentally incompatible with the aim of
-protecting users' freedom to change the software.  The systematic
-pattern of such abuse occurs in the area of products for individuals to
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-have designed this version of the GPL to prohibit the practice for those
-products.  If such problems arise substantially in other domains, we
-stand ready to extend this provision to those domains in future versions
-of the GPL, as needed to protect the freedom of users.
-
-  Finally, every program is threatened constantly by software patents.
-States should not allow patents to restrict development and use of
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-
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-
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-<http://www.gnu.org/philosophy/why-not-lgpl.html>.

COPYING.LESSER

@@ -1,181 +0,0 @@
-		         GNU LESSER GENERAL PUBLIC LICENSE
-                       Version 3, 29 June 2007
-
- Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
- Everyone is permitted to copy and distribute verbatim copies
- of this license document, but changing it is not allowed.
-
-
-  This version of the GNU Lesser General Public License incorporates
-the terms and conditions of version 3 of the GNU General Public
-License, supplemented by the additional permissions listed below.
-
-  0. Additional Definitions. 
-
-  As used herein, "this License" refers to version 3 of the GNU Lesser
-General Public License, and the "GNU GPL" refers to version 3 of the GNU
-General Public License.
-
-  "The Library" refers to a covered work governed by this License,
-other than an Application or a Combined Work as defined below.
-
-  An "Application" is any work that makes use of an interface provided
-by the Library, but which is not otherwise based on the Library.
-Defining a subclass of a class defined by the Library is deemed a mode
-of using an interface provided by the Library.
-
-  A "Combined Work" is a work produced by combining or linking an
-Application with the Library.  The particular version of the Library
-with which the Combined Work was made is also called the "Linked
-Version".
-
-  The "Minimal Corresponding Source" for a Combined Work means the
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-for portions of the Combined Work that, considered in isolation, are
-based on the Application, and not on the Linked Version.
-
-  The "Corresponding Application Code" for a Combined Work means the
-object code and/or source code for the Application, including any data
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-Application, but excluding the System Libraries of the Combined Work.
-
-  1. Exception to Section 3 of the GNU GPL.
-
-  You may convey a covered work under sections 3 and 4 of this License
-without being bound by section 3 of the GNU GPL.
-
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-of this license, and section 6 of the GNU General Public License.

Dockerfile

@@ -1,11 +1,32 @@
-FROM ubuntu:14.04
+FROM debian:buster-slim AS builder
+LABEL maintainer="ZeroMQ Project <zeromq@imatix.com>"
+ARG DEBIAN_FRONTEND=noninteractive
+RUN apt-get update -qq \
+    && apt-get install -qq --yes --no-install-recommends \
+        autoconf \
+        automake \
+        build-essential \
+        git \
+        libkrb5-dev \
+        libsodium-dev \
+        libtool \
+        pkg-config \
+    && rm -rf /var/lib/apt/lists/*
+WORKDIR /opt/libzmq
+COPY . .
+RUN ./autogen.sh \
+    && ./configure --prefix=/usr/local --with-libsodium --with-libgssapi_krb5 \
+    && make \
+    && make check \
+    && make install
 
-MAINTAINER ZeroMQ Project <zeromq@imatix.com>
-
-RUN apt-get update
-RUN DEBIAN_FRONTEND=noninteractive apt-get install -y git build-essential libtool autoconf automake pkg-config unzip libkrb5-dev
-RUN cd /tmp && git clone git://github.com/jedisct1/libsodium.git && cd libsodium && git checkout e2a30a && ./autogen.sh && ./configure && make check && make install && ldconfig
-RUN cd /tmp && git clone --depth 1 git://github.com/zeromq/libzmq.git && cd libzmq && ./autogen.sh && ./configure && make
-# RUN cd /tmp/libzmq && make check
-RUN cd /tmp/libzmq && make install && ldconfig
-RUN rm /tmp/* -rf
+FROM debian:buster-slim
+LABEL maintainer="ZeroMQ Project <zeromq@imatix.com>"
+ARG DEBIAN_FRONTEND=noninteractive
+RUN apt-get update -qq \
+    && apt-get install -qq --yes --no-install-recommends \
+        libkrb5-dev \
+        libsodium23 \
+    && rm -rf /var/lib/apt/lists/*
+COPY --from=builder /usr/local /usr/local
+RUN ldconfig && ldconfig -p | grep libzmq

INSTALL

@@ -14,6 +14,63 @@ If you clone the Git repository then you should start by running the
 command `./autogen.sh`. This is not necessary if you get the source
 packages.
 
+CMake installation
+==================
+
+The following options are available for cmake invocation:
+
+- `WITH_PERF_TOOL'
+    Enables the build of performance tools. Default value is ON.
+- `ZMQ_BUILD_TESTS'
+    Builds ZeroMQ tests. Default value is ON.
+- `ENABLE_CPACK'
+    Enables CPack build rules. This option has effect on Windows
+    platform only. Default value is ON. Turn it to OFF if you
+    don't want the runtime libraries to be installed (typically
+    if your installation destination already contains them).
+    
+
+Example: installing ZeroMQ on Windows with no tests, no performance
+tools, and no runtime library copy:
+
+cmake -G "NMake Makefiles" -D WITH_PERF_TOOL=OFF -D ZMQ_BUILD_TESTS=OFF
+-D ENABLE_CPACK=OFF -D CMAKE_BUILD_TYPE=Release
+
+Windows Builds
+==============
+
+On Windows, use CMake for building, or for generating a Visual Studio solution file.
+
+The library can also be built for the Windows 10 UWP platform through CMake :
+cmake -H. -B<build dir> -G"Visual Studio 14 2015 Win64" \
+   -DCMAKE_SYSTEM_NAME=WindowsStore -DCMAKE_SYSTEM_VERSION=10.0 \
+   -DENABLE_CURVE=OFF -DZMQ_BUILD_TESTS=OFF
+
+In VS 2012 it is mandatory to increase the default stack size of 1 MB to
+at least 2 MB due to implementation of std::map intermittently requiring
+substantial amount of stack and causing stack overflow. 
+
+Windows Builds - Static
+=======================
+
+When linking statically with libzmq your CFLAGS and/or CPPFLAGS need to include
+`-DZMQ_STATIC` otherwise `__dclspec(dllimport)` will be set for all functions
+and the build will fail.
+
+This is a workaround for issue:
+https://github.com/zeromq/libzmq/issues/2788
+
+Windows Builds - Wine
+=====================
+
+To use Windows binaries on *nix via Wine, it is necessary to ensure that the
+kernel TCP buffers are large enough. On some systems, like OS X, they are too
+small by default.
+They need to be set to at least one MB as a workaround for issue:
+https://github.com/zeromq/libzmq/issues/1608
+
+sudo sysctl -w net.inet.tcp.sendspace=1300000
+
 Basic Installation
 ==================
 
@@ -80,6 +137,17 @@ The simplest way to compile this package is:
   6. Often, you can also type `make uninstall' to remove the installed
      files again.
 
+OS X Builds - Documentation
+===========================
+
+Basic installation on OS X may fail in `Making all in doc' step. This
+error can be resolved by adding environment variable for shell.
+
+export XML_CATALOG_FILES=/usr/local/etc/xml/catalog 
+
+Write command above in shell for instant resolve, or append command into
+shell profile file and reload for permanent resolve.
+
 Compilers and Options
 =====================
 

Jenkinsfile

@@ -0,0 +1,485 @@
+pipeline {
+    agent { label "linux || macosx || bsd || solaris || posix || windows" }
+    parameters {
+        // Use DEFAULT_DEPLOY_BRANCH_PATTERN and DEFAULT_DEPLOY_JOB_NAME if
+        // defined in this jenkins setup -- in Jenkins Management Web-GUI
+        // see Configure System / Global properties / Environment variables
+        // Default (if unset) is empty => no deployment attempt after good test
+        // See zproject Jenkinsfile-deploy.example for an example deploy job.
+        // TODO: Try to marry MultiBranchPipeline support with pre-set defaults
+        // directly in MultiBranchPipeline plugin, or mechanism like Credentials,
+        // or a config file uploaded to master for all jobs or this job, see
+        // https://jenkins.io/doc/pipeline/examples/#configfile-provider-plugin
+        string (
+            defaultValue: '${DEFAULT_DEPLOY_BRANCH_PATTERN}',
+            description: 'Regular expression of branch names for which a deploy action would be attempted after a successful build and test; leave empty to not deploy. Reasonable value is ^(master|release/.*|feature/*)$',
+            name : 'DEPLOY_BRANCH_PATTERN')
+        string (
+            defaultValue: '${DEFAULT_DEPLOY_JOB_NAME}',
+            description: 'Name of your job that handles deployments and should accept arguments: DEPLOY_GIT_URL DEPLOY_GIT_BRANCH DEPLOY_GIT_COMMIT -- and it is up to that job what to do with this knowledge (e.g. git archive + push to packaging); leave empty to not deploy',
+            name : 'DEPLOY_JOB_NAME')
+        booleanParam (
+            defaultValue: true,
+            description: 'If the deployment is done, should THIS job wait for it to complete and include its success or failure as the build result (true), or should it schedule the job and exit quickly to free up the executor (false)',
+            name: 'DEPLOY_REPORT_RESULT')
+        booleanParam (
+            defaultValue: true,
+            description: 'Attempt stable build without DRAFT API in this run?',
+            name: 'DO_BUILD_WITHOUT_DRAFT_API')
+        booleanParam (
+            defaultValue: true,
+            description: 'Attempt build with DRAFT API in this run?',
+            name: 'DO_BUILD_WITH_DRAFT_API')
+        booleanParam (
+            defaultValue: true,
+            description: 'Attempt a build with docs in this run? (Note: corresponding tools are required in the build environment)',
+            name: 'DO_BUILD_DOCS')
+        booleanParam (
+            defaultValue: false,
+            description: 'Publish as an archive a "dist" tarball from a build with docs in this run? (Note: corresponding tools are required in the build environment; enabling this enforces DO_BUILD_DOCS too)',
+            name: 'DO_DIST_DOCS')
+        booleanParam (
+            defaultValue: true,
+            description: 'Attempt "make check" in this run?',
+            name: 'DO_TEST_CHECK')
+        booleanParam (
+            defaultValue: false,
+            description: 'Attempt "make memcheck" in this run?',
+            name: 'DO_TEST_MEMCHECK')
+        booleanParam (
+            defaultValue: true,
+            description: 'Attempt "make distcheck" in this run?',
+            name: 'DO_TEST_DISTCHECK')
+        booleanParam (
+            defaultValue: true,
+            description: 'Attempt a "make install" check in this run?',
+            name: 'DO_TEST_INSTALL')
+        string (
+            defaultValue: "`pwd`/tmp/_inst",
+            description: 'If attempting a "make install" check in this run, what DESTDIR to specify? (absolute path, defaults to "BUILD_DIR/tmp/_inst")',
+            name: 'USE_TEST_INSTALL_DESTDIR')
+        booleanParam (
+            defaultValue: true,
+            description: 'Attempt "cppcheck" analysis before this run? (Note: corresponding tools are required in the build environment)',
+            name: 'DO_CPPCHECK')
+        booleanParam (
+            defaultValue: true,
+            description: 'Require that there are no files not discovered changed/untracked via .gitignore after builds and tests?',
+            name: 'REQUIRE_GOOD_GITIGNORE')
+        string (
+            defaultValue: "30",
+            description: 'When running tests, use this timeout (in minutes; be sure to leave enough for double-job of a distcheck too)',
+            name: 'USE_TEST_TIMEOUT')
+        booleanParam (
+            defaultValue: true,
+            description: 'When using temporary subdirs in build/test workspaces, wipe them after successful builds?',
+            name: 'DO_CLEANUP_AFTER_BUILD')
+    }
+    triggers {
+        pollSCM 'H/2 * * * *'
+    }
+// Note: your Jenkins setup may benefit from similar setup on side of agents:
+//        PATH="/usr/lib64/ccache:/usr/lib/ccache:/usr/bin:/bin:${PATH}"
+    stages {
+        stage ('prepare') {
+                    steps {
+                        dir("tmp") {
+                            sh 'if [ -s Makefile ]; then make -k distclean || true ; fi'
+                            sh 'chmod -R u+w .'
+                            deleteDir()
+                        }
+                        sh './autogen.sh'
+                        stash (name: 'prepped', includes: '**/*', excludes: '**/cppcheck.xml')
+                    }
+        }
+        stage ('compile') {
+            parallel {
+                stage ('build with DRAFT') {
+                    when { expression { return ( params.DO_BUILD_WITH_DRAFT_API ) } }
+                    steps {
+                      dir("tmp/build-withDRAFT") {
+                        deleteDir()
+                        unstash 'prepped'
+                        sh 'CCACHE_BASEDIR="`pwd`" ; export CCACHE_BASEDIR; ./configure --enable-drafts=yes --with-docs=no'
+                        sh 'CCACHE_BASEDIR="`pwd`" ; export CCACHE_BASEDIR; make -k -j4 || make'
+                        sh 'echo "Are GitIgnores good after make with drafts? (should have no output below)"; git status -s || if [ "${params.REQUIRE_GOOD_GITIGNORE}" = false ]; then echo "WARNING GitIgnore tests found newly changed or untracked files" >&2 ; exit 0 ; else echo "FAILED GitIgnore tests" >&2 ; exit 1; fi'
+                        stash (name: 'built-draft', includes: '**/*', excludes: '**/cppcheck.xml')
+                        script {
+                            if ( params.DO_CLEANUP_AFTER_BUILD ) {
+                                deleteDir()
+                            }
+                        }
+                      }
+                    }
+                }
+                stage ('build without DRAFT') {
+                    when { expression { return ( params.DO_BUILD_WITHOUT_DRAFT_API ) } }
+                    steps {
+                      dir("tmp/build-withoutDRAFT") {
+                        deleteDir()
+                        unstash 'prepped'
+                        sh 'CCACHE_BASEDIR="`pwd`" ; export CCACHE_BASEDIR; ./configure --enable-drafts=no --with-docs=no'
+                        sh 'CCACHE_BASEDIR="`pwd`" ; export CCACHE_BASEDIR; make -k -j4 || make'
+                        sh 'echo "Are GitIgnores good after make without drafts? (should have no output below)"; git status -s || if [ "${params.REQUIRE_GOOD_GITIGNORE}" = false ]; then echo "WARNING GitIgnore tests found newly changed or untracked files" >&2 ; exit 0 ; else echo "FAILED GitIgnore tests" >&2 ; exit 1; fi'
+                        stash (name: 'built-nondraft', includes: '**/*', excludes: '**/cppcheck.xml')
+                        script {
+                            if ( params.DO_CLEANUP_AFTER_BUILD ) {
+                                deleteDir()
+                            }
+                        }
+                      }
+                    }
+                }
+                stage ('build with DOCS') {
+                    when { expression { return ( params.DO_BUILD_DOCS || params.DO_DIST_DOCS ) } }
+                    steps {
+                      dir("tmp/build-DOCS") {
+                        deleteDir()
+                        unstash 'prepped'
+                        sh 'CCACHE_BASEDIR="`pwd`" ; export CCACHE_BASEDIR; ./configure --enable-drafts=yes --with-docs=yes'
+                        script {
+                            if ( params.DO_DIST_DOCS ) {
+                                sh 'CCACHE_BASEDIR="`pwd`" ; export CCACHE_BASEDIR; make dist-gzip || exit ; DISTFILE="`ls -1tc *.tar.gz | head -1`" && [ -n "$DISTFILE" ] && [ -s "$DISTFILE" ] || exit ; mv -f "$DISTFILE" __dist.tar.gz'
+                                archiveArtifacts artifacts: '__dist.tar.gz'
+                                sh "rm -f __dist.tar.gz"
+                            }
+                        }
+                        sh 'CCACHE_BASEDIR="`pwd`" ; export CCACHE_BASEDIR; make -k -j4 || make'
+                        sh 'echo "Are GitIgnores good after make with docs? (should have no output below)"; git status -s || if [ "${params.REQUIRE_GOOD_GITIGNORE}" = false ]; then echo "WARNING GitIgnore tests found newly changed or untracked files" >&2 ; exit 0 ; else echo "FAILED GitIgnore tests" >&2 ; exit 1; fi'
+                        stash (name: 'built-docs', includes: '**/*', excludes: '**/cppcheck.xml')
+                        script {
+                            if ( params.DO_CLEANUP_AFTER_BUILD ) {
+                                deleteDir()
+                            }
+                        }
+                      }
+                    }
+                }
+            }
+        }
+        stage ('check') {
+            parallel {
+                stage ('cppcheck') {
+                    when { expression { return ( params.DO_CPPCHECK ) } }
+                    steps {
+                        dir("tmp/test-cppcheck") {
+                            deleteDir()
+                            unstash 'prepped'
+                            sh 'cppcheck --std=c++11 --enable=all --inconclusive --xml --xml-version=2 . 2>cppcheck.xml'
+                            archiveArtifacts artifacts: '**/cppcheck.xml'
+                            sh 'rm -f cppcheck.xml'
+                            script {
+                                if ( params.DO_CLEANUP_AFTER_BUILD ) {
+                                    deleteDir()
+                                }
+                            }
+                        }
+                    }
+                }
+                stage ('check with DRAFT') {
+                    when { expression { return ( params.DO_BUILD_WITH_DRAFT_API && params.DO_TEST_CHECK ) } }
+                    steps {
+                      dir("tmp/test-check-withDRAFT") {
+                        deleteDir()
+                        unstash 'built-draft'
+                        script {
+                         def RETRY_NUMBER = 0
+                         retry(3) {
+                          RETRY_NUMBER++
+                          timeout (time: "${params.USE_TEST_TIMEOUT}".toInteger(), unit: 'MINUTES') {
+                           try {
+                            sh 'CCACHE_BASEDIR="`pwd`" ; export CCACHE_BASEDIR; LD_LIBRARY_PATH="`pwd`/src/.libs:$LD_LIBRARY_PATH"; export LD_LIBRARY_PATH; make LD_LIBRARY_PATH="$LD_LIBRARY_PATH" check'
+                           }
+                           catch (Exception e) {
+                            currentBuild.result = 'UNSTABLE' // Jenkins should not let the verdict "improve"
+                            sh """D="`pwd`"; B="`basename "\$D"`" ; [ "${RETRY_NUMBER}" -gt 0 ] && T="_try-${RETRY_NUMBER}" || T="" ; tar czf "test-suite_${BUILD_TAG}_\${B}\${T}.tar.gz" `find . -name '*.trs'` `find . -name '*.log'`"""
+                            archiveArtifacts artifacts: "**/test-suite*.tar.gz", allowEmpty: true
+                            throw e
+                           }
+                          }
+                         }
+                        }
+                        sh 'echo "Are GitIgnores good after make check with drafts? (should have no output below)"; git status -s || if [ "${params.REQUIRE_GOOD_GITIGNORE}" = false ]; then echo "WARNING GitIgnore tests found newly changed or untracked files" >&2 ; exit 0 ; else echo "FAILED GitIgnore tests" >&2 ; exit 1; fi'
+                        script {
+                            if ( params.DO_CLEANUP_AFTER_BUILD ) {
+                                deleteDir()
+                            }
+                        }
+                      }
+                    }
+                }
+                stage ('check without DRAFT') {
+                    when { expression { return ( params.DO_BUILD_WITHOUT_DRAFT_API && params.DO_TEST_CHECK ) } }
+                    steps {
+                      dir("tmp/test-check-withoutDRAFT") {
+                        deleteDir()
+                        unstash 'built-nondraft'
+                        script {
+                         def RETRY_NUMBER = 0
+                         retry(3) {
+                          RETRY_NUMBER++
+                          timeout (time: "${params.USE_TEST_TIMEOUT}".toInteger(), unit: 'MINUTES') {
+                           try {
+                            sh 'CCACHE_BASEDIR="`pwd`" ; export CCACHE_BASEDIR; LD_LIBRARY_PATH="`pwd`/src/.libs:$LD_LIBRARY_PATH"; export LD_LIBRARY_PATH; make LD_LIBRARY_PATH="$LD_LIBRARY_PATH" check'
+                           }
+                           catch (Exception e) {
+                            currentBuild.result = 'UNSTABLE' // Jenkins should not let the verdict "improve"
+                            sh """D="`pwd`"; B="`basename "\$D"`" ; [ "${RETRY_NUMBER}" -gt 0 ] && T="_try-${RETRY_NUMBER}" || T="" ; tar czf "test-suite_${BUILD_TAG}_\${B}\${T}.tar.gz" `find . -name '*.trs'` `find . -name '*.log'`"""
+                            archiveArtifacts artifacts: "**/test-suite*.tar.gz", allowEmpty: true
+                            throw e
+                           }
+                          }
+                         }
+                        }
+                        sh 'echo "Are GitIgnores good after make check without drafts? (should have no output below)"; git status -s || if [ "${params.REQUIRE_GOOD_GITIGNORE}" = false ]; then echo "WARNING GitIgnore tests found newly changed or untracked files" >&2 ; exit 0 ; else echo "FAILED GitIgnore tests" >&2 ; exit 1; fi'
+                        script {
+                            if ( params.DO_CLEANUP_AFTER_BUILD ) {
+                                deleteDir()
+                            }
+                        }
+                      }
+                    }
+                }
+                stage ('memcheck with DRAFT') {
+                    when { expression { return ( params.DO_BUILD_WITH_DRAFT_API && params.DO_TEST_MEMCHECK ) } }
+                    steps {
+                      dir("tmp/test-memcheck-withDRAFT") {
+                        deleteDir()
+                        unstash 'built-draft'
+                        script {
+                         def RETRY_NUMBER = 0
+                         retry(3) {
+                          RETRY_NUMBER++
+                          timeout (time: "${params.USE_TEST_TIMEOUT}".toInteger(), unit: 'MINUTES') {
+                           try {
+                            sh 'CCACHE_BASEDIR="`pwd`" ; export CCACHE_BASEDIR; LD_LIBRARY_PATH="`pwd`/src/.libs:$LD_LIBRARY_PATH"; export LD_LIBRARY_PATH; make LD_LIBRARY_PATH="$LD_LIBRARY_PATH" memcheck && exit 0 ; echo "Re-running failed ($?) memcheck with greater verbosity" >&2 ; make LD_LIBRARY_PATH="$LD_LIBRARY_PATH" VERBOSE=1 memcheck-verbose'
+                           }
+                           catch (Exception e) {
+                            currentBuild.result = 'UNSTABLE' // Jenkins should not let the verdict "improve"
+                            sh """D="`pwd`"; B="`basename "\$D"`" ; [ "${RETRY_NUMBER}" -gt 0 ] && T="_try-${RETRY_NUMBER}" || T="" ; tar czf "test-suite_${BUILD_TAG}_\${B}\${T}.tar.gz" `find . -name '*.trs'` `find . -name '*.log'`"""
+                            archiveArtifacts artifacts: "**/test-suite*.tar.gz", allowEmpty: true
+                            throw e
+                           }
+                          }
+                         }
+                        }
+                        sh 'echo "Are GitIgnores good after make memcheck with drafts? (should have no output below)"; git status -s || if [ "${params.REQUIRE_GOOD_GITIGNORE}" = false ]; then echo "WARNING GitIgnore tests found newly changed or untracked files" >&2 ; exit 0 ; else echo "FAILED GitIgnore tests" >&2 ; exit 1; fi'
+                        script {
+                            if ( params.DO_CLEANUP_AFTER_BUILD ) {
+                                deleteDir()
+                            }
+                        }
+                      }
+                    }
+                }
+                stage ('memcheck without DRAFT') {
+                    when { expression { return ( params.DO_BUILD_WITHOUT_DRAFT_API && params.DO_TEST_MEMCHECK ) } }
+                    steps {
+                      dir("tmp/test-memcheck-withoutDRAFT") {
+                        deleteDir()
+                        unstash 'built-nondraft'
+                        script {
+                         def RETRY_NUMBER = 0
+                         retry(3) {
+                          RETRY_NUMBER++
+                          timeout (time: "${params.USE_TEST_TIMEOUT}".toInteger(), unit: 'MINUTES') {
+                           try {
+                            sh 'CCACHE_BASEDIR="`pwd`" ; export CCACHE_BASEDIR; LD_LIBRARY_PATH="`pwd`/src/.libs:$LD_LIBRARY_PATH"; export LD_LIBRARY_PATH; make LD_LIBRARY_PATH="$LD_LIBRARY_PATH" memcheck && exit 0 ; echo "Re-running failed ($?) memcheck with greater verbosity" >&2 ; make LD_LIBRARY_PATH="$LD_LIBRARY_PATH" VERBOSE=1 memcheck-verbose'
+                           }
+                           catch (Exception e) {
+                            currentBuild.result = 'UNSTABLE' // Jenkins should not let the verdict "improve"
+                            sh """D="`pwd`"; B="`basename "\$D"`" ; [ "${RETRY_NUMBER}" -gt 0 ] && T="_try-${RETRY_NUMBER}" || T="" ; tar czf "test-suite_${BUILD_TAG}_\${B}\${T}.tar.gz" `find . -name '*.trs'` `find . -name '*.log'`"""
+                            archiveArtifacts artifacts: "**/test-suite*.tar.gz", allowEmpty: true
+                            throw e
+                           }
+                          }
+                         }
+                        }
+                        sh 'echo "Are GitIgnores good after make memcheck without drafts? (should have no output below)"; git status -s || if [ "${params.REQUIRE_GOOD_GITIGNORE}" = false ]; then echo "WARNING GitIgnore tests found newly changed or untracked files" >&2 ; exit 0 ; else echo "FAILED GitIgnore tests" >&2 ; exit 1; fi'
+                        script {
+                            if ( params.DO_CLEANUP_AFTER_BUILD ) {
+                                deleteDir()
+                            }
+                        }
+                      }
+                    }
+                }
+                stage ('distcheck with DRAFT') {
+                    when { expression { return ( params.DO_BUILD_WITH_DRAFT_API && params.DO_TEST_DISTCHECK ) } }
+                    steps {
+                      dir("tmp/test-distcheck-withDRAFT") {
+                        deleteDir()
+                        unstash 'built-draft'
+                        script {
+                         def RETRY_NUMBER = 0
+                         retry(3) {
+                          RETRY_NUMBER++
+                          timeout (time: "${params.USE_TEST_TIMEOUT}".toInteger(), unit: 'MINUTES') {
+                           try {
+                            sh 'CCACHE_BASEDIR="`pwd`" ; export CCACHE_BASEDIR; LD_LIBRARY_PATH="`pwd`/src/.libs:$LD_LIBRARY_PATH"; export LD_LIBRARY_PATH; DISTCHECK_CONFIGURE_FLAGS="--enable-drafts=yes --with-docs=no" ; export DISTCHECK_CONFIGURE_FLAGS; make DISTCHECK_CONFIGURE_FLAGS="$DISTCHECK_CONFIGURE_FLAGS" LD_LIBRARY_PATH="$LD_LIBRARY_PATH" distcheck'
+                           }
+                           catch (Exception e) {
+                            currentBuild.result = 'UNSTABLE' // Jenkins should not let the verdict "improve"
+                            sh """D="`pwd`"; B="`basename "\$D"`" ; [ "${RETRY_NUMBER}" -gt 0 ] && T="_try-${RETRY_NUMBER}" || T="" ; tar czf "test-suite_${BUILD_TAG}_\${B}\${T}.tar.gz" `find . -name '*.trs'` `find . -name '*.log'`"""
+                            archiveArtifacts artifacts: "**/test-suite*.tar.gz", allowEmpty: true
+                            throw e
+                           }
+                          }
+                         }
+                        }
+                        sh 'echo "Are GitIgnores good after make distcheck with drafts? (should have no output below)"; git status -s || if [ "${params.REQUIRE_GOOD_GITIGNORE}" = false ]; then echo "WARNING GitIgnore tests found newly changed or untracked files" >&2 ; exit 0 ; else echo "FAILED GitIgnore tests" >&2 ; exit 1; fi'
+                        script {
+                            if ( params.DO_CLEANUP_AFTER_BUILD ) {
+                                deleteDir()
+                            }
+                        }
+                      }
+                    }
+                }
+                stage ('distcheck without DRAFT') {
+                    when { expression { return ( params.DO_BUILD_WITHOUT_DRAFT_API && params.DO_TEST_DISTCHECK ) } }
+                    steps {
+                      dir("tmp/test-distcheck-withoutDRAFT") {
+                        deleteDir()
+                        unstash 'built-nondraft'
+                        script {
+                         def RETRY_NUMBER = 0
+                         retry(3) {
+                          RETRY_NUMBER++
+                          timeout (time: "${params.USE_TEST_TIMEOUT}".toInteger(), unit: 'MINUTES') {
+                           try {
+                            sh 'CCACHE_BASEDIR="`pwd`" ; export CCACHE_BASEDIR; LD_LIBRARY_PATH="`pwd`/src/.libs:$LD_LIBRARY_PATH"; export LD_LIBRARY_PATH; DISTCHECK_CONFIGURE_FLAGS="--enable-drafts=no --with-docs=no" ; export DISTCHECK_CONFIGURE_FLAGS; make DISTCHECK_CONFIGURE_FLAGS="$DISTCHECK_CONFIGURE_FLAGS" LD_LIBRARY_PATH="$LD_LIBRARY_PATH" distcheck'
+                           }
+                           catch (Exception e) {
+                            currentBuild.result = 'UNSTABLE' // Jenkins should not let the verdict "improve"
+                            sh """D="`pwd`"; B="`basename "\$D"`" ; [ "${RETRY_NUMBER}" -gt 0 ] && T="_try-${RETRY_NUMBER}" || T="" ; tar czf "test-suite_${BUILD_TAG}_\${B}\${T}.tar.gz" `find . -name '*.trs'` `find . -name '*.log'`"""
+                            archiveArtifacts artifacts: "**/test-suite*.tar.gz", allowEmpty: true
+                            throw e
+                           }
+                          }
+                         }
+                        }
+                        sh 'echo "Are GitIgnores good after make distcheck without drafts? (should have no output below)"; git status -s || if [ "${params.REQUIRE_GOOD_GITIGNORE}" = false ]; then echo "WARNING GitIgnore tests found newly changed or untracked files" >&2 ; exit 0 ; else echo "FAILED GitIgnore tests" >&2 ; exit 1; fi'
+                        script {
+                            if ( params.DO_CLEANUP_AFTER_BUILD ) {
+                                deleteDir()
+                            }
+                        }
+                      }
+                    }
+                }
+                stage ('install with DRAFT') {
+                    when { expression { return ( params.DO_BUILD_WITH_DRAFT_API && params.DO_TEST_INSTALL ) } }
+                    steps {
+                      dir("tmp/test-install-withDRAFT") {
+                        deleteDir()
+                        unstash 'built-draft'
+                        retry(3) {
+                        timeout (time: "${params.USE_TEST_TIMEOUT}".toInteger(), unit: 'MINUTES') {
+                            sh """CCACHE_BASEDIR="`pwd`" ; export CCACHE_BASEDIR; LD_LIBRARY_PATH="`pwd`/src/.libs:\${LD_LIBRARY_PATH}"; export LD_LIBRARY_PATH; make LD_LIBRARY_PATH="\${LD_LIBRARY_PATH}" DESTDIR="${params.USE_TEST_INSTALL_DESTDIR}/withDRAFT" install"""
+                        }
+                        }
+                        sh """cd "${params.USE_TEST_INSTALL_DESTDIR}/withDRAFT" && find . -ls"""
+                        sh 'echo "Are GitIgnores good after make install with drafts? (should have no output below)"; git status -s || if [ "${params.REQUIRE_GOOD_GITIGNORE}" = false ]; then echo "WARNING GitIgnore tests found newly changed or untracked files" >&2 ; exit 0 ; else echo "FAILED GitIgnore tests" >&2 ; exit 1; fi'
+                        script {
+                            if ( params.DO_CLEANUP_AFTER_BUILD ) {
+                                deleteDir()
+                            }
+                        }
+                      }
+                    }
+                }
+                stage ('install without DRAFT') {
+                    when { expression { return ( params.DO_BUILD_WITHOUT_DRAFT_API && params.DO_TEST_INSTALL ) } }
+                    steps {
+                      dir("tmp/test-install-withoutDRAFT") {
+                        deleteDir()
+                        unstash 'built-nondraft'
+                        retry(3) {
+                        timeout (time: "${params.USE_TEST_TIMEOUT}".toInteger(), unit: 'MINUTES') {
+                            sh """CCACHE_BASEDIR="`pwd`" ; export CCACHE_BASEDIR; LD_LIBRARY_PATH="`pwd`/src/.libs:\${LD_LIBRARY_PATH}"; export LD_LIBRARY_PATH; make LD_LIBRARY_PATH="\${LD_LIBRARY_PATH}" DESTDIR="${params.USE_TEST_INSTALL_DESTDIR}/withoutDRAFT" install"""
+                        }
+                        }
+                        sh """cd "${params.USE_TEST_INSTALL_DESTDIR}/withoutDRAFT" && find . -ls"""
+                        sh 'echo "Are GitIgnores good after make install without drafts? (should have no output below)"; git status -s || if [ "${params.REQUIRE_GOOD_GITIGNORE}" = false ]; then echo "WARNING GitIgnore tests found newly changed or untracked files" >&2 ; exit 0 ; else echo "FAILED GitIgnore tests" >&2 ; exit 1; fi'
+                        script {
+                            if ( params.DO_CLEANUP_AFTER_BUILD ) {
+                                deleteDir()
+                            }
+                        }
+                      }
+                    }
+                }
+                stage ('install with DOCS') {
+                    when { expression { return ( params.DO_BUILD_DOCS && params.DO_TEST_INSTALL ) } }
+                    steps {
+                      dir("tmp/test-install-withDOCS") {
+                        deleteDir()
+                        unstash 'built-docs'
+                        retry(3) {
+                        timeout (time: "${params.USE_TEST_TIMEOUT}".toInteger(), unit: 'MINUTES') {
+                            sh """CCACHE_BASEDIR="`pwd`" ; export CCACHE_BASEDIR; LD_LIBRARY_PATH="`pwd`/src/.libs:\${LD_LIBRARY_PATH}"; export LD_LIBRARY_PATH; make LD_LIBRARY_PATH="\${LD_LIBRARY_PATH}" DESTDIR="${params.USE_TEST_INSTALL_DESTDIR}/withDOCS" install"""
+                        }
+                        }
+                        sh """cd "${params.USE_TEST_INSTALL_DESTDIR}/withDOCS" && find . -ls"""
+                        sh 'echo "Are GitIgnores good after make install with Docs? (should have no output below)"; git status -s || if [ "${params.REQUIRE_GOOD_GITIGNORE}" = false ]; then echo "WARNING GitIgnore tests found newly changed or untracked files" >&2 ; exit 0 ; else echo "FAILED GitIgnore tests" >&2 ; exit 1; fi'
+                        script {
+                            if ( params.DO_CLEANUP_AFTER_BUILD ) {
+                                deleteDir()
+                            }
+                        }
+                      }
+                    }
+                }
+            }
+        }
+        stage ('deploy if appropriate') {
+            steps {
+                script {
+                    def myDEPLOY_JOB_NAME = sh(returnStdout: true, script: """echo "${params["DEPLOY_JOB_NAME"]}" """).trim();
+                    def myDEPLOY_BRANCH_PATTERN = sh(returnStdout: true, script: """echo "${params["DEPLOY_BRANCH_PATTERN"]}" """).trim();
+                    def myDEPLOY_REPORT_RESULT = sh(returnStdout: true, script: """echo "${params["DEPLOY_REPORT_RESULT"]}" """).trim().toBoolean();
+                    echo "Original: DEPLOY_JOB_NAME : ${params["DEPLOY_JOB_NAME"]} DEPLOY_BRANCH_PATTERN : ${params["DEPLOY_BRANCH_PATTERN"]} DEPLOY_REPORT_RESULT : ${params["DEPLOY_REPORT_RESULT"]}"
+                    echo "Used:     myDEPLOY_JOB_NAME:${myDEPLOY_JOB_NAME} myDEPLOY_BRANCH_PATTERN:${myDEPLOY_BRANCH_PATTERN} myDEPLOY_REPORT_RESULT:${myDEPLOY_REPORT_RESULT}"
+                    if ( (myDEPLOY_JOB_NAME != "") && (myDEPLOY_BRANCH_PATTERN != "") ) {
+                        if ( env.BRANCH_NAME =~ myDEPLOY_BRANCH_PATTERN ) {
+                            def GIT_URL = sh(returnStdout: true, script: """git remote -v | grep -E '^origin' | awk '{print \$2}' | head -1""").trim()
+                            def GIT_COMMIT = sh(returnStdout: true, script: 'git rev-parse --verify HEAD').trim()
+                            def DIST_ARCHIVE = ""
+                            if ( params.DO_DIST_DOCS ) { DIST_ARCHIVE = env.BUILD_URL + "artifact/__dist.tar.gz" }
+                            build job: "${myDEPLOY_JOB_NAME}", parameters: [
+                                string(name: 'DEPLOY_GIT_URL', value: "${GIT_URL}"),
+                                string(name: 'DEPLOY_GIT_BRANCH', value: env.BRANCH_NAME),
+                                string(name: 'DEPLOY_GIT_COMMIT', value: "${GIT_COMMIT}"),
+                                string(name: 'DEPLOY_DIST_ARCHIVE', value: "${DIST_ARCHIVE}")
+                                ], quietPeriod: 0, wait: myDEPLOY_REPORT_RESULT, propagate: myDEPLOY_REPORT_RESULT
+                        } else {
+                            echo "Not deploying because branch '${env.BRANCH_NAME}' did not match filter '${myDEPLOY_BRANCH_PATTERN}'"
+                        }
+                    } else {
+                        echo "Not deploying because deploy-job parameters are not set"
+                    }
+                }
+            }
+        }
+    }
+    post {
+        success {
+            script {
+                if (currentBuild.getPreviousBuild()?.result != 'SUCCESS') {
+                    // Uncomment desired notification
+
+                    //slackSend (color: "#008800", message: "Build ${env.JOB_NAME} is back to normal.")
+                    //emailext (to: "qa@example.com", subject: "Build ${env.JOB_NAME} is back to normal.", body: "Build ${env.JOB_NAME} is back to normal.")
+                }
+            }
+        }
+        failure {
+            // Uncomment desired notification
+            // Section must not be empty, you can delete the sleep once you set notification
+            sleep 1
+            //slackSend (color: "#AA0000", message: "Build ${env.BUILD_NUMBER} of ${env.JOB_NAME} ${currentBuild.result} (<${env.BUILD_URL}|Open>)")
+            //emailext (to: "qa@example.com", subject: "Build ${env.JOB_NAME} failed!", body: "Build ${env.BUILD_NUMBER} of ${env.JOB_NAME} ${currentBuild.result}\nSee ${env.BUILD_URL}")
+        }
+    }
+}

LICENSE

@@ -0,0 +1,373 @@
+Mozilla Public License Version 2.0
+==================================
+
+1. Definitions
+--------------
+
+1.1. "Contributor"
+    means each individual or legal entity that creates, contributes to
+    the creation of, or owns Covered Software.
+
+1.2. "Contributor Version"
+    means the combination of the Contributions of others (if any) used
+    by a Contributor and that particular Contributor's Contribution.
+
+1.3. "Contribution"
+    means Covered Software of a particular Contributor.
+
+1.4. "Covered Software"
+    means Source Code Form to which the initial Contributor has attached
+    the notice in Exhibit A, the Executable Form of such Source Code
+    Form, and Modifications of such Source Code Form, in each case
+    including portions thereof.
+
+1.5. "Incompatible With Secondary Licenses"
+    means
+
+    (a) that the initial Contributor has attached the notice described
+        in Exhibit B to the Covered Software; or
+
+    (b) that the Covered Software was made available under the terms of
+        version 1.1 or earlier of the License, but not also under the
+        terms of a Secondary License.
+
+1.6. "Executable Form"
+    means any form of the work other than Source Code Form.
+
+1.7. "Larger Work"
+    means a work that combines Covered Software with other material, in
+    a separate file or files, that is not Covered Software.
+
+1.8. "License"
+    means this document.
+
+1.9. "Licensable"
+    means having the right to grant, to the maximum extent possible,
+    whether at the time of the initial grant or subsequently, any and
+    all of the rights conveyed by this License.
+
+1.10. "Modifications"
+    means any of the following:
+
+    (a) any file in Source Code Form that results from an addition to,
+        deletion from, or modification of the contents of Covered
+        Software; or
+
+    (b) any new file in Source Code Form that contains any Covered
+        Software.
+
+1.11. "Patent Claims" of a Contributor
+    means any patent claim(s), including without limitation, method,
+    process, and apparatus claims, in any patent Licensable by such
+    Contributor that would be infringed, but for the grant of the
+    License, by the making, using, selling, offering for sale, having
+    made, import, or transfer of either its Contributions or its
+    Contributor Version.
+
+1.12. "Secondary License"
+    means either the GNU General Public License, Version 2.0, the GNU
+    Lesser General Public License, Version 2.1, the GNU Affero General
+    Public License, Version 3.0, or any later versions of those
+    licenses.
+
+1.13. "Source Code Form"
+    means the form of the work preferred for making modifications.
+
+1.14. "You" (or "Your")
+    means an individual or a legal entity exercising rights under this
+    License. For legal entities, "You" includes any entity that
+    controls, is controlled by, or is under common control with You. For
+    purposes of this definition, "control" means (a) the power, direct
+    or indirect, to cause the direction or management of such entity,
+    whether by contract or otherwise, or (b) ownership of more than
+    fifty percent (50%) of the outstanding shares or beneficial
+    ownership of such entity.
+
+2. License Grants and Conditions
+--------------------------------
+
+2.1. Grants
+
+Each Contributor hereby grants You a world-wide, royalty-free,
+non-exclusive license:
+
+(a) under intellectual property rights (other than patent or trademark)
+    Licensable by such Contributor to use, reproduce, make available,
+    modify, display, perform, distribute, and otherwise exploit its
+    Contributions, either on an unmodified basis, with Modifications, or
+    as part of a Larger Work; and
+
+(b) under Patent Claims of such Contributor to make, use, sell, offer
+    for sale, have made, import, and otherwise transfer either its
+    Contributions or its Contributor Version.
+
+2.2. Effective Date
+
+The licenses granted in Section 2.1 with respect to any Contribution
+become effective for each Contribution on the date the Contributor first
+distributes such Contribution.
+
+2.3. Limitations on Grant Scope
+
+The licenses granted in this Section 2 are the only rights granted under
+this License. No additional rights or licenses will be implied from the
+distribution or licensing of Covered Software under this License.
+Notwithstanding Section 2.1(b) above, no patent license is granted by a
+Contributor:
+
+(a) for any code that a Contributor has removed from Covered Software;
+    or
+
+(b) for infringements caused by: (i) Your and any other third party's
+    modifications of Covered Software, or (ii) the combination of its
+    Contributions with other software (except as part of its Contributor
+    Version); or
+
+(c) under Patent Claims infringed by Covered Software in the absence of
+    its Contributions.
+
+This License does not grant any rights in the trademarks, service marks,
+or logos of any Contributor (except as may be necessary to comply with
+the notice requirements in Section 3.4).
+
+2.4. Subsequent Licenses
+
+No Contributor makes additional grants as a result of Your choice to
+distribute the Covered Software under a subsequent version of this
+License (see Section 10.2) or under the terms of a Secondary License (if
+permitted under the terms of Section 3.3).
+
+2.5. Representation
+
+Each Contributor represents that the Contributor believes its
+Contributions are its original creation(s) or it has sufficient rights
+to grant the rights to its Contributions conveyed by this License.
+
+2.6. Fair Use
+
+This License is not intended to limit any rights You have under
+applicable copyright doctrines of fair use, fair dealing, or other
+equivalents.
+
+2.7. Conditions
+
+Sections 3.1, 3.2, 3.3, and 3.4 are conditions of the licenses granted
+in Section 2.1.
+
+3. Responsibilities
+-------------------
+
+3.1. Distribution of Source Form
+
+All distribution of Covered Software in Source Code Form, including any
+Modifications that You create or to which You contribute, must be under
+the terms of this License. You must inform recipients that the Source
+Code Form of the Covered Software is governed by the terms of this
+License, and how they can obtain a copy of this License. You may not
+attempt to alter or restrict the recipients' rights in the Source Code
+Form.
+
+3.2. Distribution of Executable Form
+
+If You distribute Covered Software in Executable Form then:
+
+(a) such Covered Software must also be made available in Source Code
+    Form, as described in Section 3.1, and You must inform recipients of
+    the Executable Form how they can obtain a copy of such Source Code
+    Form by reasonable means in a timely manner, at a charge no more
+    than the cost of distribution to the recipient; and
+
+(b) You may distribute such Executable Form under the terms of this
+    License, or sublicense it under different terms, provided that the
+    license for the Executable Form does not attempt to limit or alter
+    the recipients' rights in the Source Code Form under this License.
+
+3.3. Distribution of a Larger Work
+
+You may create and distribute a Larger Work under terms of Your choice,
+provided that You also comply with the requirements of this License for
+the Covered Software. If the Larger Work is a combination of Covered
+Software with a work governed by one or more Secondary Licenses, and the
+Covered Software is not Incompatible With Secondary Licenses, this
+License permits You to additionally distribute such Covered Software
+under the terms of such Secondary License(s), so that the recipient of
+the Larger Work may, at their option, further distribute the Covered
+Software under the terms of either this License or such Secondary
+License(s).
+
+3.4. Notices
+
+You may not remove or alter the substance of any license notices
+(including copyright notices, patent notices, disclaimers of warranty,
+or limitations of liability) contained within the Source Code Form of
+the Covered Software, except that You may alter any license notices to
+the extent required to remedy known factual inaccuracies.
+
+3.5. Application of Additional Terms
+
+You may choose to offer, and to charge a fee for, warranty, support,
+indemnity or liability obligations to one or more recipients of Covered
+Software. However, You may do so only on Your own behalf, and not on
+behalf of any Contributor. You must make it absolutely clear that any
+such warranty, support, indemnity, or liability obligation is offered by
+You alone, and You hereby agree to indemnify every Contributor for any
+liability incurred by such Contributor as a result of warranty, support,
+indemnity or liability terms You offer. You may include additional
+disclaimers of warranty and limitations of liability specific to any
+jurisdiction.
+
+4. Inability to Comply Due to Statute or Regulation
+---------------------------------------------------
+
+If it is impossible for You to comply with any of the terms of this
+License with respect to some or all of the Covered Software due to
+statute, judicial order, or regulation then You must: (a) comply with
+the terms of this License to the maximum extent possible; and (b)
+describe the limitations and the code they affect. Such description must
+be placed in a text file included with all distributions of the Covered
+Software under this License. Except to the extent prohibited by statute
+or regulation, such description must be sufficiently detailed for a
+recipient of ordinary skill to be able to understand it.
+
+5. Termination
+--------------
+
+5.1. The rights granted under this License will terminate automatically
+if You fail to comply with any of its terms. However, if You become
+compliant, then the rights granted under this License from a particular
+Contributor are reinstated (a) provisionally, unless and until such
+Contributor explicitly and finally terminates Your grants, and (b) on an
+ongoing basis, if such Contributor fails to notify You of the
+non-compliance by some reasonable means prior to 60 days after You have
+come back into compliance. Moreover, Your grants from a particular
+Contributor are reinstated on an ongoing basis if such Contributor
+notifies You of the non-compliance by some reasonable means, this is the
+first time You have received notice of non-compliance with this License
+from such Contributor, and You become compliant prior to 30 days after
+Your receipt of the notice.
+
+5.2. If You initiate litigation against any entity by asserting a patent
+infringement claim (excluding declaratory judgment actions,
+counter-claims, and cross-claims) alleging that a Contributor Version
+directly or indirectly infringes any patent, then the rights granted to
+You by any and all Contributors for the Covered Software under Section
+2.1 of this License shall terminate.
+
+5.3. In the event of termination under Sections 5.1 or 5.2 above, all
+end user license agreements (excluding distributors and resellers) which
+have been validly granted by You or Your distributors under this License
+prior to termination shall survive termination.
+
+************************************************************************
+*                                                                      *
+*  6. Disclaimer of Warranty                                           *
+*  -------------------------                                           *
+*                                                                      *
+*  Covered Software is provided under this License on an "as is"       *
+*  basis, without warranty of any kind, either expressed, implied, or  *
+*  statutory, including, without limitation, warranties that the       *
+*  Covered Software is free of defects, merchantable, fit for a        *
+*  particular purpose or non-infringing. The entire risk as to the     *
+*  quality and performance of the Covered Software is with You.        *
+*  Should any Covered Software prove defective in any respect, You     *
+*  (not any Contributor) assume the cost of any necessary servicing,   *
+*  repair, or correction. This disclaimer of warranty constitutes an   *
+*  essential part of this License. No use of any Covered Software is   *
+*  authorized under this License except under this disclaimer.         *
+*                                                                      *
+************************************************************************
+
+************************************************************************
+*                                                                      *
+*  7. Limitation of Liability                                          *
+*  --------------------------                                          *
+*                                                                      *
+*  Under no circumstances and under no legal theory, whether tort      *
+*  (including negligence), contract, or otherwise, shall any           *
+*  Contributor, or anyone who distributes Covered Software as          *
+*  permitted above, be liable to You for any direct, indirect,         *
+*  special, incidental, or consequential damages of any character      *
+*  including, without limitation, damages for lost profits, loss of    *
+*  goodwill, work stoppage, computer failure or malfunction, or any    *
+*  and all other commercial damages or losses, even if such party      *
+*  shall have been informed of the possibility of such damages. This   *
+*  limitation of liability shall not apply to liability for death or   *
+*  personal injury resulting from such party's negligence to the       *
+*  extent applicable law prohibits such limitation. Some               *
+*  jurisdictions do not allow the exclusion or limitation of           *
+*  incidental or consequential damages, so this exclusion and          *
+*  limitation may not apply to You.                                    *
+*                                                                      *
+************************************************************************
+
+8. Litigation
+-------------
+
+Any litigation relating to this License may be brought only in the
+courts of a jurisdiction where the defendant maintains its principal
+place of business and such litigation shall be governed by laws of that
+jurisdiction, without reference to its conflict-of-law provisions.
+Nothing in this Section shall prevent a party's ability to bring
+cross-claims or counter-claims.
+
+9. Miscellaneous
+----------------
+
+This License represents the complete agreement concerning the subject
+matter hereof. If any provision of this License is held to be
+unenforceable, such provision shall be reformed only to the extent
+necessary to make it enforceable. Any law or regulation which provides
+that the language of a contract shall be construed against the drafter
+shall not be used to construe this License against a Contributor.
+
+10. Versions of the License
+---------------------------
+
+10.1. New Versions
+
+Mozilla Foundation is the license steward. Except as provided in Section
+10.3, no one other than the license steward has the right to modify or
+publish new versions of this License. Each version will be given a
+distinguishing version number.
+
+10.2. Effect of New Versions
+
+You may distribute the Covered Software under the terms of the version
+of the License under which You originally received the Covered Software,
+or under the terms of any subsequent version published by the license
+steward.
+
+10.3. Modified Versions
+
+If you create software not governed by this License, and you want to
+create a new license for such software, you may create and use a
+modified version of this License if you rename the license and remove
+any references to the name of the license steward (except to note that
+such modified license differs from this License).
+
+10.4. Distributing Source Code Form that is Incompatible With Secondary
+Licenses
+
+If You choose to distribute Source Code Form that is Incompatible With
+Secondary Licenses under the terms of this version of the License, the
+notice described in Exhibit B of this License must be attached.
+
+Exhibit A - Source Code Form License Notice
+-------------------------------------------
+
+  This Source Code Form is subject to the terms of the Mozilla Public
+  License, v. 2.0. If a copy of the MPL was not distributed with this
+  file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+If it is not possible or desirable to put the notice in a particular
+file, then You may include the notice in a location (such as a LICENSE
+file in a relevant directory) where a recipient would be likely to look
+for such a notice.
+
+You may add additional accurate notices of copyright ownership.
+
+Exhibit B - "Incompatible With Secondary Licenses" Notice
+---------------------------------------------------------
+
+  This Source Code Form is "Incompatible With Secondary Licenses", as
+  defined by the Mozilla Public License, v. 2.0.

MAINTAINERS

@@ -1,56 +0,0 @@
-Component: Atomic Operations
-Maintainer: Martin Sustrik
-Contact: sustrik@250bpm.com
-
-Component: Lock-free Algorithms
-Maintainer: Martin Sustrik
-Contact: sustrik@250bpm.com
-
-Component: TCP transport
-Maintainer: Martin Sustrik
-Contact: sustrik@250bpm.com
-
-Component: IPC transport
-Maintainer: Martin Sustrik
-Contact: sustrik@250bpm.com
-
-Component: PGM transport
-Maintainer: Martin Sustrik
-Contact: sustrik@250bpm.com
-
-Component: In-process transport
-Maintainer: Martin Sustrik
-Contact: sustrik@250bpm.com
-
-Component: I/O Threads
-Maintainer: Martin Sustrik
-Contact: sustrik@250bpm.com
-
-Component: Application Threads and Differnet Socket Types
-Maintainer: Martin Sustrik
-Contact: sustrik@250bpm.com
-
-Component: Multiplexing (zmq_poll)
-Maintainer: Martin Sustrik
-Contact: sustrik@250bpm.com
-
-Component: Generic Infrastructure (context, mailbox, command, pipe)
-Maintainer: Martin Sustrik
-Contact: sustrik@250bpm.com
-
-Component: Documentation
-Maintainer: Martin Sustrik
-Contact: sustrik@250bpm.com
-
-Component: Autotools build system
-Maintainer: Mikko Koppanen
-Contact: mikko.koppanen@gmail.com
-
-Component: MSVC build system
-Maintainer: Martin Sustrik
-Contact: sustrik@250bpm.com
-
-Component: Performance tests
-Maintainer: Martin Sustrik
-Contact: sustrik@250bpm.com
-

README.cygwin.md

@@ -0,0 +1,15 @@
+libzmq-cygwin
+=============
+
+Definitive build fixes for cygwin  (See https://github.com/zeromq/pyzmq/issues/113 for partial solution)
+
+What's changed:
+  ./Makefile.am                       Add cygwin-specific target mostly the same as mingw
+  ./configure.ac                      Add cygwin-specific target mostly the same as mingw
+  ./tests/testutil.hpp                Lengthen socket timeout to 121 seconds
+  
+What's new:
+  ./README.cygwin.md                  This file
+  ./builds/cygwin                     Folder for cygwin-specific build files
+  ./builds/cygwin/Makefile.cygwin     Makefile for cygwin targets
+  

README.doxygen.md

@@ -0,0 +1,48 @@
+## Overview
+
+The ZeroMQ lightweight messaging kernel is a library which extends the
+standard socket interfaces with features traditionally provided by
+specialised messaging middleware products. ZeroMQ sockets provide an
+abstraction of asynchronous message queues, multiple messaging patterns,
+message filtering (subscriptions), seamless access to multiple transport
+protocols and more.
+
+This documentation describes the internal software that makes up the
+ZeroMQ C++ core engine, and not how to use its API, however it may help
+you understand certain aspects better, such as the callgraph of an API method.
+There are no instructions on using ZeroMQ within this documentation, only
+the API internals that make up the software.
+
+**Note:** this documentation is generated directly from the source code with
+Doxygen. Since this project is constantly under active development, what you
+are about to read may be out of date! If you notice any errors in the
+documentation, or the code comments, then please send a pull request.
+
+Please refer to the README file for anything else.
+## Resources
+
+Extensive documentation is provided with the distribution. Refer to
+doc/zmq.html, or "man zmq" after you have installed libzmq on your system.
+
+* Website: http://www.zeromq.org/
+* Official API documentation: http://api.zeromq.org/
+
+Development mailing list: zeromq-dev@lists.zeromq.org
+
+Announcements mailing list: zeromq-announce@lists.zeromq.org
+
+Git repository: http://github.com/zeromq/libzmq
+
+ZeroMQ developers can also be found on the IRC channel \#zeromq, on the
+Freenode network (irc.freenode.net).
+
+## Copyright
+Copyright (c) 2007-2016 Contributors as noted in the AUTHORS file.  
+The project license is specified in LICENSE.
+
+The names "ØMQ", "ZeroMQ", "0MQ", and the ØMQ logo are registered trademarks
+of iMatix Corporation ("iMatix") and refers to either (a) the original libzmq
+C++ library, or (b) the community of projects hosted in the
+https://github.com/zeromq organization.
+
+This Doxygen configuration is adapted by Hiten Pandya, for the ZeroMQ project.

README.md

@@ -1,6 +1,9 @@
 # ZeroMQ
 
-[![Build Status](https://travis-ci.org/zeromq/zeromq4-1.png?branch=master)](https://travis-ci.org/zeromq/zeromq4-1)
+[![Build Status](https://github.com/zeromq/libzmq/actions/workflows/CI.yaml/badge.svg)](https://github.com/zeromq/libzmq/actions/workflows/CI.yaml)
+[![Build status](https://ci.appveyor.com/api/projects/status/e2ks424yrs1un3wt?svg=true)](https://ci.appveyor.com/project/zeromq/libzmq)
+[![Coverage Status](https://coveralls.io/repos/github/zeromq/libzmq/badge.svg?branch=master)](https://coveralls.io/github/zeromq/libzmq?branch=master)
+[![Conan Center](https://shields.io/conan/v/zeromq)](https://conan.io/center/zeromq)
 
 ## Welcome
 
@@ -11,9 +14,166 @@ abstraction of asynchronous message queues, multiple messaging patterns,
 message filtering (subscriptions), seamless access to multiple transport
 protocols and more.
 
-## Building and installation
+## Supported platforms <a name="#platforms"/>
 
-See the INSTALL file included with the distribution.
+Libzmq is mainly written in C++98 with some optional C++11-fragments. For
+configuration either autotools or CMake is employed. See below for some lists
+of platforms, where libzmq has been successfully compiled on.
+
+### Supported platforms with primary CI
+
+| OS and version                         | Architecture            | Compiler and version          | Build system | Remarks                                                                                                                               |
+|----------------------------------------|-------------------------|-------------------------------|--------------|---------------------------------------------------------------------------------------------------------------------------------------|
+| Android NDK r25                        | arm, arm64, x86, x86_64 | llvm (see NDK)                | autotools    | DRAFT                                                                                                                                       |
+| Ubuntu 14.04.5 LTS (trusty)            | amd64                   | clang 5.0.0                   | autotools    | STABLE, extras: GSSAPI, PGM, NORM, C++98 mode only                                                                                    |
+| Ubuntu 14.04.5 LTS (trusty)            | amd64                   | gcc 4.8.4                     | autotools    | STABLE, DRAFT, extras: GSSAPI, PGM, NORM, TIPC, IPV6, also POLLER=poll, POLLER=select, also valgrind and address sanitizer executions |
+| Ubuntu 14.04.5 LTS (trusty)            | amd64                   | gcc 4.8.4                     | CMake 3.12.2 | STABLE                                                                                                                                |
+| Windows Server 2012 R2                 | x86                     | Visual Studio 2008            | CMake 3.12.2 | DRAFT                                                                                                                                 |
+| Windows Server 2012 R2                 | x86                     | Visual Studio 2010 SP1        | CMake 3.12.2 | DRAFT                                                                                                                                 |
+| Windows Server 2012 R2                 | x86                     | Visual Studio 2012 Update 5   | CMake 3.12.2 | DRAFT                                                                                                                                 |
+| Windows Server 2012 R2                 | x86, amd64              | Visual Studio 2013 Update 5   | CMake 3.12.2 | DRAFT, STABLE (x86 Release only), also POLLER=epoll                                                                                   |
+| Windows Server 2012 R2                 | x86                     | Visual Studio 2015 Update 3   | CMake 3.12.2 | DRAFT                                                                                                                                 |
+| Windows Server 2016                    | x86                     | Visual Studio 2017 15.9.6     | CMake 3.13.3 | DRAFT                                                                                                                                 |
+| cygwin 3.0.0 on Windows Server 2012 R2 | amd64                   | gcc 7.4.0                     | CMake 3.6.2  | DRAFT                                                                                                                                 |
+| MSYS2 ? on Windows Server 2012 R2      | amd64                   | gcc 6.4.0                     | CMake ?      | DRAFT                                                                                                                                 |
+| Mac OS X 10.13                         | amd64                   | Xcode 9.4.1, Apple LLVM 9.1.0 | autotools    | STABLE, DRAFT                                                                                                                         |
+| Mac OS X 10.13                         | amd64                   | Xcode 9.4.1, Apple LLVM 9.1.0 | CMake 3.11.4 | DRAFT                                                                                                                                 |
+
+Note: the platforms are regularly updated by the service providers, so this information might get out of date
+without any changes on the side of libzmq. For Appveyor, refer to https://www.appveyor.com/updates/ regarding
+platform updates. For travis-ci, refer to https://changelog.travis-ci.com/ regarding platform updates.
+
+### Supported platforms with secondary CI
+
+| OS and version               | Architecture               | Compiler and version | Build system | Remarks |
+|------------------------------|----------------------------|----------------------|--------------|---------|
+| CentOS 6                     | x86, amd64                 | ?                    | autotools    |         |
+| CentOS 7                     | amd64                      | ?                    | autotools    |         |
+| Debian 8.0                   | x86, amd64                 | ?                    | autotools    |         |
+| Debian 9.0                   | ARM64, x86, amd64          | ?                    | autotools    |         |
+| Fedora 28                    | ARM64, ARM32, amd64        | ?                    | autotools    |         |
+| Fedora 29                    | ARM64, ARM32, amd64        | ?                    | autotools    |         |
+| Fedora Rawhide               | ARM64, ARM32, amd64        | ?                    | autotools    |         |
+| RedHat Enterprise Linux 7    | amd64, ppc64               | ?                    | autotools    |         |
+| SuSE Linux Enterprise 12 SP4 | ARM64, amd64, ppc64, s390x | ?                    | autotools    |         |
+| SuSE Linux Enterprise 15     | amd64                      | ?                    | autotools    |         |
+| xUbuntu 12.04                | x86, amd64                 | ?                    | autotools    |         |
+| xUbuntu 14.04                | x86, amd64                 | ?                    | autotools    |         |
+| xUbuntu 16.04                | x86, amd64                 | ?                    | autotools    |         |
+| xUbuntu 18.04                | x86, amd64                 | ?                    | autotools    |         |
+| xUbuntu 18.10                | x86, amd64                 | ?                    | autotools    |         |
+
+### Supported platforms with known active users
+
+At the time of writing, no explicit reports have been available. Please report your experiences by opening a PR
+adding an entry or moving an entry from the section below.
+
+Under "last report", please name either the SHA1 in case of an unreleased version, or the version number in
+case of a released version.
+
+| OS and version | Architecture      | Compiler and version | Build system | Last report             | Remarks |
+|----------------|-------------------|----------------------|--------------|-------------------------|---------|
+| Solaris 10     | x86, amd64, sparc | GCC 8.1.0            | CMake        | 2019/03/18              |         |
+| DragonFly BSD  | amd64             | gcc 8.3              | autotools    | 2018/08/07 git-72854e63 |         |
+| IBM i          | ppc64             | gcc 6.3              | autotools    | 2019/10/02 git-25320a3  |         |
+| QNX 7.0        | x86_64            | gcc 5.4.0            | CMake        | 4.3.2                   |         |
+| Windows 10     | ARM64             | Visual Studio 2019   | CMake        | 2021/11/15 git-2375ca8b |         |
+| Windows 10     | ARM64             | clang                | CMake        | 2021/11/15 git-2375ca8b |         |
+
+### Supported platforms without known active users
+
+Note: this list is incomplete and inaccurate and still needs some work.
+
+| OS and version         | Architecture | Compiler and version     | Build system     | Remarks |
+|------------------------|--------------|--------------------------|------------------|---------|
+| Any Linux distribution | x86, amd64   | gcc ?+, clang ?+, icc ?+ | autotools, CMake |         |
+| SunOS, Solaris         | x86, amd64   | SunPro                   | autotools, CMake |         |
+| GNU/kFreeBSD           | ?            | ?                        | autotools, CMake |         |
+| FreeBSD                | ?            | ?                        | autotools, CMake |         |
+| NetBSD                 | ?            | ?                        | autotools, CMake |         |
+| OpenBSD                | ?            | ?                        | autotools, CMake |         |
+| DragonFly BSD          | amd64        | gcc 8.3                  | autotools, CMake |         |
+| HP-UX                  | ?            | ?                        | autotools, CMake |         |
+| GNU/Hurd               | ?            | ?                        | autotools        |         |
+| VxWorks 6.8            | ?            | ?                        | ?                |         |
+| Windows CE             | ?            | ?                        | ?                |         |
+| Windows UWP            | ?            | ?                        | ?                |         |
+| OpenVMS                | ?            | ?                        | ?                |         |
+
+### Unsupported platforms
+
+| OS and version | Architecture | Compiler and version | Remarks                                                                 |
+|----------------|--------------|----------------------|-------------------------------------------------------------------------|
+| QNX 6.3        | ?            | gcc 3.3.5            | see #3371, support was added by a user, but not contributed to upstream |
+
+For more details, see [here](SupportedPlatforms.md).
+
+For some platforms (Linux, Mac OS X), [prebuilt binary packages are supplied by the ZeroMQ organization](#installation).
+For other platforms, you need to [build your own binaries](#build).
+
+## Installation of binary packages <a name="installation"/>
+
+### Linux
+
+For Linux users, pre-built binary packages are available for most distributions.
+Note that DRAFT APIs can change at any time without warning, pick a STABLE build to
+avoid having them enabled.
+
+#### Latest releases
+
+##### DEB
+
+[![OBS release stable](https://img.shields.io/badge/OBS%20master-stable-yellow.svg)](http://software.opensuse.org/download.html?project=network%3Amessaging%3Azeromq%3Arelease-stable&package=libzmq3-dev)
+[![OBS release draft](https://img.shields.io/badge/OBS%20master-draft-yellow.svg)](http://software.opensuse.org/download.html?project=network%3Amessaging%3Azeromq%3Arelease-draft&package=libzmq3-dev)
+
+##### RPM
+
+[![OBS release stable](https://img.shields.io/badge/OBS%20master-stable-yellow.svg)](http://software.opensuse.org/download.html?project=network%3Amessaging%3Azeromq%3Arelease-stable&package=zeromq-devel)
+[![OBS release draft](https://img.shields.io/badge/OBS%20master-draft-yellow.svg)](http://software.opensuse.org/download.html?project=network%3Amessaging%3Azeromq%3Arelease-draft&package=zeromq-devel)
+
+#### Bleeding edge packages
+
+##### DEB
+
+[![OBS release stable](https://img.shields.io/badge/OBS%20master-stable-yellow.svg)](http://software.opensuse.org/download.html?project=network%3Amessaging%3Azeromq%3Agit-stable&package=libzmq3-dev)
+[![OBS release draft](https://img.shields.io/badge/OBS%20master-draft-yellow.svg)](http://software.opensuse.org/download.html?project=network%3Amessaging%3Azeromq%3Agit-draft&package=libzmq3-dev)
+
+##### RPM
+
+[![OBS release stable](https://img.shields.io/badge/OBS%20master-stable-yellow.svg)](http://software.opensuse.org/download.html?project=network%3Amessaging%3Azeromq%3Agit-stable&package=zeromq-devel)
+[![OBS release draft](https://img.shields.io/badge/OBS%20master-draft-yellow.svg)](http://software.opensuse.org/download.html?project=network%3Amessaging%3Azeromq%3Agit-draft&package=zeromq-devel)
+
+#### Example: Debian 9 latest release, no DRAFT apis
+
+    echo "deb http://download.opensuse.org/repositories/network:/messaging:/zeromq:/release-stable/Debian_9.0/ ./" >> /etc/apt/sources.list
+    wget https://download.opensuse.org/repositories/network:/messaging:/zeromq:/release-stable/Debian_9.0/Release.key -O- | sudo apt-key add
+    apt-get install libzmq3-dev
+
+### OSX
+
+For OSX users, packages are available via brew.
+
+    brew install zeromq
+
+## Installation of package manager <a name="package manager"/>
+
+### vcpkg
+
+vcpkg is a full platform package manager, you can easily install libzmq via vcpkg.
+
+    git clone https://github.com/microsoft/vcpkg.git
+    ./bootstrap-vcpkg.bat # For powershell
+    ./bootstrap-vcpkg.sh # For bash
+    ./vcpkg install zeromq
+
+## Build from sources <a name="build"/>
+
+To build from sources, see the INSTALL file included with the distribution.
+
+### Android
+
+To build from source, see [README](./builds/android/README.md) file in the
+android build directory.
 
 ## Resources
 
@@ -28,28 +188,15 @@ Announcements mailing list: zeromq-announce@lists.zeromq.org
 Git repository: http://github.com/zeromq/libzmq
 
 ZeroMQ developers can also be found on the IRC channel #zeromq, on the
-Freenode network (irc.freenode.net).
+Libera Chat network (irc.libera.chat).
 
 ## License
 
-The project license is specified in COPYING and COPYING.LESSER.
+The project license is specified in LICENSE.
 
 libzmq is free software; you can redistribute it and/or modify it under
-the terms of the GNU Lesser General Public License (LGPL) as published
-by the Free Software Foundation; either version 3 of the License, or
-(at your option) any later version.
+the terms of the Mozilla Public License Version 2.0.
 
-As a special exception, the Contributors give you permission to link
-this library with independent modules to produce an executable,
-regardless of the license terms of these independent modules, and to
-copy and distribute the resulting executable under terms of your choice,
-provided that you also meet, for each linked independent module, the
-terms and conditions of the license of that module. An independent
-module is a module which is not derived from or based on this library.
-If you modify this library, you must extend this exception to your
-version of the library.
+## Contributing
 
-libzmq is distributed in the hope that it will be useful, but WITHOUT
-ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
-License for more details.
+This project uses [C4(Collective Code Construction Contract)](https://rfc.zeromq.org/spec:42/C4/) process for contributions.

SECURITY.md

@@ -0,0 +1,319 @@
+# Security Policy
+
+## Supported Versions
+
+4.x versions are supported with critical and security bug fixes.
+
+| Version | Supported          |
+| ------- | ------------------ |
+| 4.3.x   | :white_check_mark: |
+| 4.2.x   | :white_check_mark: |
+| 4.1.x   | :white_check_mark: |
+| 4.0.x   | :white_check_mark: |
+| < 4.0   | :x:                |
+
+## Reporting a Vulnerability
+
+If you believe a bug you found could have security implications,
+please send a GPG encrypted email with the details to the maintainers:
+
+| Maintainer | Email address   | GPG fingerprint |
+| ---------- | --------------- | --------------- |
+| Doron Somech | somdoron@gmail.com | E0B0 E3D1 55DD 6ED6 71FB  2B79 D0B9 CC44 867D 8F3D |
+| Luca Boccassi | luca.boccassi@gmail.com | A9EA 9081 724F FAE0 484C 35A1 A81C EA22 BC8C 7E2E |
+
+## Internal severity classification
+
+We will attempt to follow this general policy when assigning a severity to
+security issues. These are guidelines more than rules, and as such end
+results might vary.
+
+
+| Severity | Definition |
+| -------- | ---------- |
+| CRITICAL | endpoints using STRONG authentication are SILENTLY affected |
+| HIGH | endpoints using STRONG authentication are VISIBLY affected |
+| MODERATE | endpoints NOT using STRONG authentication are SILENTLY affected |
+| LOW | endpoints NOT using STRONG authentication are VISIBLY affected |
+
+STRONG authentication means transports that use cryptography, for example CURVE
+and TLS.
+
+VISIBLY affected means that platform owners are likely to immediately notice
+misbehaviours, like crashes or loss of connectivity for legitimate peers.
+
+SILENTLY affected means that without close inspection, platform owners are
+unlikely to notice misbehaviours, like remote code executions or data exfiltration.
+
+### Public keys
+<details>
+<summary>Doron Somech</summary>
+
+```
+-----BEGIN PGP PUBLIC KEY BLOCK-----
+
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+=Qu19
+-----END PGP PUBLIC KEY BLOCK-----
+```
+
+</details>
+
+<details>
+<summary>Luca Boccassi</summary>
+
+```
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+
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+kh2ModEoxdIAQWEtKR0dEHwVhOId76lq19sS6I4MKTfHZ7xGnXTozbeqjcTX0edA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+=AXgM
+-----END PGP PUBLIC KEY BLOCK-----
+```
+
+</details>

SupportedPlatforms.md

@@ -0,0 +1,32 @@
+libzmq supports a large variety of platforms. The list of platforms can be found in the [README](README.md#platforms).
+The degree to which this support is tested varies.
+
+Platforms are currently assigned to one of the following categories:
+- supported platforms with primary CI (travis-ci.org, appveyor.com): https://travis-ci.org/zeromq/libzmq, https://ci.appveyor.com/project/zeromq/libzmq
+- supported platforms with secondary CI (openSUSE Build Service): https://build.opensuse.org/project/subprojects/network:messaging:zeromq
+- supported platforms with known active users
+- supported platforms without known active users
+- unsupported platforms
+
+Supported platforms with primary CI
+- have builds and tests run for the master branch
+- have builds and tests run for every pull request
+- it is a precondition for merging a pull request that no builds or tests of these platforms are broken
+- contributors can easily enable these builds and tests for their branches in their fork
+
+Supported platforms with secondary CI
+- have builds and tests run for the master branch
+- these are monitored periodically by the project maintainers, and efforts are made to fix any broken builds or tests in a timely manner
+- it is a precondition for a release that no builds or tests of these platforms are broken
+
+Supported platforms with known active users
+- have recently been reported to the maintainers (e.g. via pull requests modifying this document) as having working builds and possibly tests
+
+Supported platforms without known active users
+- have some platform-specific code within libzmq, but it is not known if it is still working
+- have been reported to the maintainers as having working builds and possibly tests only significant time/changes ago 
+- or are assumed to work due to similarity to the above platforms
+
+Unsupported platforms
+- are either reported to be non-working for some reason that is not trivial to fix or are explicitly missing some required platform-specific code
+

acinclude.m4

@@ -7,7 +7,7 @@ AC_DEFUN([LIBZMQ_CONFIG_LIBTOOL],  [{
 
     # Libtool configuration for different targets
     case "${host_os}" in
-        *mingw32*|*cygwin*)
+        *mingw*|*cygwin*|*msys*)
             # Disable static build by default
             AC_DISABLE_STATIC
         ;;
@@ -88,11 +88,20 @@ dnl # LIBZMQ_CHECK_DOC_BUILD
 dnl # Check whether to build documentation and install man-pages                 #
 dnl ##############################################################################
 AC_DEFUN([LIBZMQ_CHECK_DOC_BUILD], [{
-    # Allow user to disable doc build
+
+    # Man pages are built/installed if asciidoctor and xmlto are present
+    #   --with-docs=no overrides this
+    AC_ARG_WITH([docs],
+        AS_HELP_STRING([--without-docs],
+            [Don't build and install man pages [default=build]]),
+        [with_docs=$withval])
     AC_ARG_WITH([documentation], [AS_HELP_STRING([--without-documentation],
-        [disable documentation build even if asciidoc and xmlto are present [default=no]])])
+        [Don't build and install man pages [default=build] DEPRECATED: use --without-docs])])
 
     if test "x$with_documentation" = "xno"; then
+        AC_MSG_WARN([--without-documentation is DEPRECATED and will be removed in the next release, use --without-docs])
+    fi
+    if test "x$with_docs" = "xno" || test "x$with_documentation" = "xno"; then
         libzmq_build_doc="no"
         libzmq_install_man="no"
     else
@@ -100,20 +109,19 @@ AC_DEFUN([LIBZMQ_CHECK_DOC_BUILD], [{
         libzmq_build_doc="yes"
         libzmq_install_man="yes"
         # Check for asciidoc and xmlto and don't build the docs if these are not installed.
-        AC_CHECK_PROG(libzmq_have_asciidoc, asciidoc, yes, no)
-        AC_CHECK_PROG(libzmq_have_xmlto, xmlto, yes, no)
-        if test "x$libzmq_have_asciidoc" = "xno" -o "x$libzmq_have_xmlto" = "xno"; then
+        AC_CHECK_PROG(libzmq_have_asciidoctor, asciidoctor, yes, no)
+        if test "x$libzmq_have_asciidoctor" = "xno"; then
             libzmq_build_doc="no"
             # Tarballs built with 'make dist' ship with prebuilt documentation.
             if ! test -f doc/zmq.7; then
                 libzmq_install_man="no"
-                AC_MSG_WARN([You are building an unreleased version of 0MQ and asciidoc or xmlto are not installed.])
+                AC_MSG_WARN([You are building an unreleased version of 0MQ and asciidoctor is not installed.])
                 AC_MSG_WARN([Documentation will not be built and manual pages will not be installed.])
             fi
         fi
 
         # Do not install man pages if on mingw
-        if test "x$libzmq_on_mingw32" = "xyes"; then
+        if test "x$libzmq_on_mingw" = "xyes"; then
             libzmq_install_man="no"
         fi
     fi
@@ -275,7 +283,7 @@ AC_DEFUN([LIBZMQ_CHECK_ENABLE_DEBUG], [{
 
     # This flag is checked also in
     AC_ARG_ENABLE([debug], [AS_HELP_STRING([--enable-debug],
-        [Enable debugging information [default=no]])])
+        [enable debugging information [default=disabled]])])
 
     AC_MSG_CHECKING(whether to enable debugging information)
 
@@ -326,7 +334,7 @@ AC_DEFUN([LIBZMQ_WITH_GCOV], [{
     AC_REQUIRE([LIBZMQ_CHECK_COMPILERS])
 
     AC_ARG_WITH(gcov, [AS_HELP_STRING([--with-gcov=yes/no],
-                      [With GCC Code Coverage reporting.])],
+                      [with GCC Code Coverage reporting.])],
                       [ZMQ_GCOV="$withval"])
 
     AC_MSG_CHECKING(whether to enable code coverage)
@@ -586,8 +594,8 @@ dnl # LIBZMQ_CHECK_SOCK_CLOEXEC([action-if-found], [action-if-not-found])
 dnl # Check if SOCK_CLOEXEC is supported                                           #
 dnl ################################################################################
 AC_DEFUN([LIBZMQ_CHECK_SOCK_CLOEXEC], [{
-    AC_MSG_CHECKING(whether SOCK_CLOEXEC is supported)
-    AC_TRY_RUN([/* SOCK_CLOEXEC test */
+    AC_CACHE_CHECK([whether SOCK_CLOEXEC is supported], [libzmq_cv_sock_cloexec],
+        [AC_TRY_RUN([/* SOCK_CLOEXEC test */
 #include <sys/types.h>
 #include <sys/socket.h>
 
@@ -596,11 +604,122 @@ int main (int argc, char *argv [])
     int s = socket (PF_INET, SOCK_STREAM | SOCK_CLOEXEC, 0);
     return (s == -1);
 }
-    ],
-    [AC_MSG_RESULT(yes) ; libzmq_cv_sock_cloexec="yes" ; $1],
-    [AC_MSG_RESULT(no)  ; libzmq_cv_sock_cloexec="no"  ; $2],
-    [AC_MSG_RESULT(not during cross-compile) ; libzmq_cv_sock_cloexec="no"]
+        ],
+        [libzmq_cv_sock_cloexec="yes"],
+        [libzmq_cv_sock_cloexec="no"],
+        [libzmq_cv_sock_cloexec="not during cross-compile"]
+        )]
     )
+    AS_IF([test "x$libzmq_cv_sock_cloexec" = "xyes"], [$1], [$2])
+}])
+
+dnl ################################################################################
+dnl # LIBZMQ_CHECK_O_CLOEXEC([action-if-found], [action-if-not-found])          #
+dnl # Check if O_CLOEXEC is supported                                           #
+dnl ################################################################################
+AC_DEFUN([LIBZMQ_CHECK_O_CLOEXEC], [{
+    AC_CACHE_CHECK([whether O_CLOEXEC is supported], [libzmq_cv_o_cloexec],
+        [AC_TRY_RUN([/* O_CLOEXEC test */
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+
+int main (int argc, char *argv [])
+{
+    int s = open ("/dev/null", O_CLOEXEC | O_RDONLY);
+    return (s == -1);
+}
+        ],
+        [libzmq_cv_o_cloexec="yes"],
+        [libzmq_cv_o_cloexec="no"],
+        [libzmq_cv_o_cloexec="not during cross-compile"]
+        )]
+    )
+    AS_IF([test "x$libzmq_cv_o_cloexec" = "xyes"], [$1], [$2])
+}])
+
+dnl ################################################################################
+dnl # LIBZMQ_CHECK_EVENTFD_CLOEXEC([action-if-found], [action-if-not-found])          #
+dnl # Check if EFD_CLOEXEC is supported                                           #
+dnl ################################################################################
+AC_DEFUN([LIBZMQ_CHECK_EVENTFD_CLOEXEC], [{
+    AC_CACHE_CHECK([whether EFD_CLOEXEC is supported], [libzmq_cv_efd_cloexec],
+        [AC_TRY_RUN([/* EFD_CLOEXEC test */
+#include <sys/eventfd.h>
+
+int main (int argc, char *argv [])
+{
+    int s = eventfd (0, EFD_CLOEXEC);
+    return (s == -1);
+}
+        ],
+        [libzmq_cv_efd_cloexec="yes"],
+        [libzmq_cv_efd_cloexec="no"],
+        [libzmq_cv_efd_cloexec="not during cross-compile"]
+        )]
+    )
+    AS_IF([test "x$libzmq_cv_efd_cloexec" = "xyes"], [$1], [$2])
+}])
+
+dnl ################################################################################
+dnl # LIBZMQ_CHECK_ATOMIC_INSTRINSICS([action-if-found], [action-if-not-found])    #
+dnl # Check if compiler supoorts __atomic_Xxx intrinsics                           #
+dnl ################################################################################
+AC_DEFUN([LIBZMQ_CHECK_ATOMIC_INTRINSICS], [{
+    AC_MSG_CHECKING(whether compiler supports __atomic_Xxx intrinsics)
+    AC_LINK_IFELSE([AC_LANG_SOURCE([
+/* atomic intrinsics test */
+int v = 0;
+int main (int, char **)
+{
+    int t = __atomic_add_fetch (&v, 1, __ATOMIC_ACQ_REL);
+    return t;
+}
+    ])],
+    [AC_MSG_RESULT(yes) ; GCC_ATOMIC_BUILTINS_SUPPORTED=1 libzmq_cv_has_atomic_instrisics="yes" ; $1])
+
+    if test "x$GCC_ATOMIC_BUILTINS_SUPPORTED" != x1; then
+        save_LIBS=$LIBS
+        LIBS="$LIBS -latomic"
+        AC_LINK_IFELSE([AC_LANG_SOURCE([
+        /* atomic intrinsics test */
+        int v = 0;
+        int main (int, char **)
+        {
+            int t = __atomic_add_fetch (&v, 1, __ATOMIC_ACQ_REL);
+            return t;
+        }
+        ])],
+        [AC_MSG_RESULT(yes) ; libzmq_cv_has_atomic_instrisics="yes" PKGCFG_LIBS_PRIVATE="$PKGCFG_LIBS_PRIVATE -latomic" ; $1],
+        [AC_MSG_RESULT(no) ; libzmq_cv_has_atomic_instrisics="no" LIBS=$save_LIBS ; $2])
+    fi
+}])
+
+dnl ################################################################################
+dnl # LIBZMQ_CHECK_SO_BINDTODEVICE([action-if-found], [action-if-not-found])          #
+dnl # Check if SO_BINDTODEVICE is supported                                           #
+dnl ################################################################################
+AC_DEFUN([LIBZMQ_CHECK_SO_BINDTODEVICE], [{
+    AC_CACHE_CHECK([whether SO_BINDTODEVICE is supported], [libzmq_cv_so_bindtodevice],
+        [AC_TRY_RUN([/* SO_BINDTODEVICE test */
+#include <sys/socket.h>
+
+int main (int argc, char *argv [])
+{
+/* Actually making the setsockopt() call requires CAP_NET_RAW */
+#ifndef SO_BINDTODEVICE
+    return 1;
+#else
+    return 0;
+#endif
+}
+        ],
+        [libzmq_cv_so_bindtodevice="yes"],
+        [libzmq_cv_so_bindtodevice="no"],
+        [libzmq_cv_so_bindtodevice="not during cross-compile"]
+        )]
+    )
+    AS_IF([test "x$libzmq_cv_so_bindtodevice" = "xyes"], [$1], [$2])
 }])
 
 dnl ################################################################################
@@ -608,8 +727,8 @@ dnl # LIBZMQ_CHECK_SO_KEEPALIVE([action-if-found], [action-if-not-found])
 dnl # Check if SO_KEEPALIVE is supported                                           #
 dnl ################################################################################
 AC_DEFUN([LIBZMQ_CHECK_SO_KEEPALIVE], [{
-    AC_MSG_CHECKING(whether SO_KEEPALIVE is supported)
-    AC_TRY_RUN([/* SO_KEEPALIVE test */
+    AC_CACHE_CHECK([whether SO_KEEPALIVE is supported], [libzmq_cv_so_keepalive],
+        [AC_TRY_RUN([/* SO_KEEPALIVE test */
 #include <sys/types.h>
 #include <sys/socket.h>
 
@@ -621,11 +740,13 @@ int main (int argc, char *argv [])
         ((rc = setsockopt (s, SOL_SOCKET, SO_KEEPALIVE, (char*) &opt, sizeof (int))) == -1)
     );
 }
-    ],
-    [AC_MSG_RESULT(yes) ; libzmq_cv_so_keepalive="yes" ; $1],
-    [AC_MSG_RESULT(no)  ; libzmq_cv_so_keepalive="no"  ; $2],
-    [AC_MSG_RESULT(not during cross-compile) ; libzmq_cv_so_keepalive="no"]
+        ],
+        [libzmq_cv_so_keepalive="yes"],
+        [libzmq_cv_so_keepalive="no"],
+        [libzmq_cv_so_keepalive="not during cross-compile"]
+        )]
     )
+    AS_IF([test "x$libzmq_cv_so_keepalive" = "xyes"], [$1], [$2])
 }])
 
 dnl ################################################################################
@@ -633,8 +754,8 @@ dnl # LIBZMQ_CHECK_TCP_KEEPCNT([action-if-found], [action-if-not-found])
 dnl # Check if TCP_KEEPCNT is supported                                            #
 dnl ################################################################################
 AC_DEFUN([LIBZMQ_CHECK_TCP_KEEPCNT], [{
-    AC_MSG_CHECKING(whether TCP_KEEPCNT is supported)
-    AC_TRY_RUN([/* TCP_KEEPCNT test */
+    AC_CACHE_CHECK([whether TCP_KEEPCNT is supported], [libzmq_cv_tcp_keepcnt],
+        [AC_TRY_RUN([/* TCP_KEEPCNT test */
 #include <sys/types.h>
 #include <sys/socket.h>
 #include <netinet/in.h>
@@ -649,11 +770,13 @@ int main (int argc, char *argv [])
         ((rc = setsockopt (s, IPPROTO_TCP, TCP_KEEPCNT, (char*) &opt, sizeof (int))) == -1)
     );
 }
-    ],
-    [AC_MSG_RESULT(yes) ; libzmq_cv_tcp_keepcnt="yes" ; $1],
-    [AC_MSG_RESULT(no)  ; libzmq_cv_tcp_keepcnt="no"  ; $2],
-    [AC_MSG_RESULT(not during cross-compile) ; libzmq_cv_tcp_keepcnt="no"]
+        ],
+        [libzmq_cv_tcp_keepcnt="yes"],
+        [libzmq_cv_tcp_keepcnt="no"],
+        [libzmq_cv_tcp_keepcnt="not during cross-compile"]
+        )]
     )
+    AS_IF([test "x$libzmq_cv_tcp_keepcnt" = "xyes"], [$1], [$2])
 }])
 
 dnl ################################################################################
@@ -661,8 +784,8 @@ dnl # LIBZMQ_CHECK_TCP_KEEPIDLE([action-if-found], [action-if-not-found])
 dnl # Check if TCP_KEEPIDLE is supported                                           #
 dnl ################################################################################
 AC_DEFUN([LIBZMQ_CHECK_TCP_KEEPIDLE], [{
-    AC_MSG_CHECKING(whether TCP_KEEPIDLE is supported)
-    AC_TRY_RUN([/* TCP_KEEPIDLE test */
+    AC_CACHE_CHECK([whether TCP_KEEPIDLE is supported], [libzmq_cv_tcp_keepidle],
+        [AC_TRY_RUN([/* TCP_KEEPIDLE test */
 #include <sys/types.h>
 #include <sys/socket.h>
 #include <netinet/in.h>
@@ -677,11 +800,13 @@ int main (int argc, char *argv [])
         ((rc = setsockopt (s, IPPROTO_TCP, TCP_KEEPIDLE, (char*) &opt, sizeof (int))) == -1)
     );
 }
-    ],
-    [AC_MSG_RESULT(yes) ; libzmq_cv_tcp_keepidle="yes" ; $1],
-    [AC_MSG_RESULT(no)  ; libzmq_cv_tcp_keepidle="no"  ; $2],
-    [AC_MSG_RESULT(not during cross-compile) ; libzmq_cv_tcp_keepidle="no"]
+        ],
+        [libzmq_cv_tcp_keepidle="yes"],
+        [libzmq_cv_tcp_keepidle="no"],
+        [libzmq_cv_tcp_keepidle="not during cross-compile"]
+        )]
     )
+    AS_IF([test "x$libzmq_cv_tcp_keepidle" = "xyes"], [$1], [$2])
 }])
 
 dnl ################################################################################
@@ -689,8 +814,8 @@ dnl # LIBZMQ_CHECK_TCP_KEEPINTVL([action-if-found], [action-if-not-found])
 dnl # Check if TCP_KEEPINTVL is supported                                           #
 dnl ################################################################################
 AC_DEFUN([LIBZMQ_CHECK_TCP_KEEPINTVL], [{
-    AC_MSG_CHECKING(whether TCP_KEEPINTVL is supported)
-    AC_TRY_RUN([/* TCP_KEEPINTVL test */
+    AC_CACHE_CHECK([whether TCP_KEEPINTVL is supported], [libzmq_cv_tcp_keepintvl],
+        [AC_TRY_RUN([/* TCP_KEEPINTVL test */
 #include <sys/types.h>
 #include <sys/socket.h>
 #include <netinet/in.h>
@@ -705,11 +830,13 @@ int main (int argc, char *argv [])
         ((rc = setsockopt (s, IPPROTO_TCP, TCP_KEEPINTVL, (char*) &opt, sizeof (int))) == -1)
     );
 }
-    ],
-    [AC_MSG_RESULT(yes) ; libzmq_cv_tcp_keepintvl="yes" ; $1],
-    [AC_MSG_RESULT(no)  ; libzmq_cv_tcp_keepintvl="no"  ; $2],
-    [AC_MSG_RESULT(not during cross-compile) ; libzmq_cv_tcp_keepintvl="no"]
+        ],
+        [libzmq_cv_tcp_keepintvl="yes"],
+        [libzmq_cv_tcp_keepintvl="no"],
+        [libzmq_cv_tcp_keepintvl="not during cross-compile"]
+        )]
     )
+    AS_IF([test "x$libzmq_cv_tcp_keepintvl" = "xyes"], [$1], [$2])
 }])
 
 dnl ################################################################################
@@ -717,8 +844,8 @@ dnl # LIBZMQ_CHECK_TCP_KEEPALIVE([action-if-found], [action-if-not-found])
 dnl # Check if TCP_KEEPALIVE is supported                                          #
 dnl ################################################################################
 AC_DEFUN([LIBZMQ_CHECK_TCP_KEEPALIVE], [{
-    AC_MSG_CHECKING(whether TCP_KEEPALIVE is supported)
-    AC_TRY_RUN([/* TCP_KEEPALIVE test */
+    AC_CACHE_CHECK([whether TCP_KEEPALIVE is supported], [libzmq_cv_tcp_keepalive],
+        [AC_TRY_RUN([/* TCP_KEEPALIVE test */
 #include <sys/types.h>
 #include <sys/socket.h>
 #include <netinet/in.h>
@@ -733,11 +860,64 @@ int main (int argc, char *argv [])
         ((rc = setsockopt (s, IPPROTO_TCP, TCP_KEEPALIVE, (char*) &opt, sizeof (int))) == -1)
     );
 }
-    ],
-    [AC_MSG_RESULT(yes) ; libzmq_cv_tcp_keepalive="yes" ; $1],
-    [AC_MSG_RESULT(no)  ; libzmq_cv_tcp_keepalive="no"  ; $2],
-    [AC_MSG_RESULT(not during cross-compile) ; libzmq_cv_tcp_keepalive="no"]
+        ],
+        [libzmq_cv_tcp_keepalive="yes"],
+        [libzmq_cv_tcp_keepalive="no"],
+        [libzmq_cv_tcp_keepalive="not during cross-compile"]
+        )]
     )
+    AS_IF([test "x$libzmq_cv_tcp_keepalive" = "xyes"], [$1], [$2])
+}])
+
+dnl ################################################################################
+dnl # LIBZMQ_CHECK_SO_PRIORITY([action-if-found], [action-if-not-found])           #
+dnl # Check if SO_PRIORITY is supported                                            #
+dnl ################################################################################
+AC_DEFUN([LIBZMQ_CHECK_SO_PRIORITY], [{
+    AC_CACHE_CHECK([whether SO_PRIORITY is supported], [libzmq_cv_so_priority],
+        [AC_TRY_RUN([/* SO_PRIORITY test */
+#include <sys/types.h>
+#include <sys/socket.h>
+
+int main (int argc, char *argv [])
+{
+    int s, rc, opt = 1;
+    return (
+        ((s = socket (PF_INET, SOCK_STREAM, 0)) == -1) ||
+        ((rc = setsockopt (s, SOL_SOCKET, SO_PRIORITY, (char*) &opt, sizeof (int))) == -1)
+    );
+}
+        ],
+        [libzmq_cv_so_priority="yes"],
+        [libzmq_cv_so_priority="no"],
+        [libzmq_cv_so_priority="not during cross-compile"]
+        )]
+    )
+    AS_IF([test "x$libzmq_cv_so_priority" = "xyes"], [$1], [$2])
+}])
+
+dnl ################################################################################
+dnl # LIBZMQ_CHECK_GETRANDOM([action-if-found], [action-if-not-found])  #
+dnl # Checks if getrandom is supported                                  #
+dnl ################################################################################
+AC_DEFUN([LIBZMQ_CHECK_GETRANDOM], [{
+    AC_CACHE_CHECK([whether getrandom is supported], [libzmq_cv_getrandom],
+        [AC_TRY_RUN([/* thread-local storage test */
+#include <sys/random.h>
+
+int main (int argc, char *argv [])
+{
+    char buf[4];
+    int rc = getrandom(buf, 4, 0);
+    return rc == -1 ? 1 : 0;
+}
+        ],
+        [libzmq_cv_getrandom="yes"],
+        [libzmq_cv_getrandom="no"],
+        [libzmq_cv_getrandom="not during cross-compile"]
+        )]
+    )
+    AS_IF([test "x$libzmq_cv_getrandom" = "xyes"], [$1], [$2])
 }])
 
 dnl ################################################################################
@@ -760,6 +940,7 @@ kqueue();
 
 dnl ################################################################################
 dnl # LIBZMQ_CHECK_POLLER_EPOLL_RUN([action-if-found], [action-if-not-found])      #
+dnl # LIBZMQ_CHECK_POLLER_EPOLL_CLOEXEC([action-if-found], [action-if-not-found])  #
 dnl # Checks epoll polling system can actually run #
 dnl # For cross-compile, only requires that epoll can link #
 dnl ################################################################################
@@ -787,6 +968,30 @@ epoll_create(10);
     )
 }])
 
+AC_DEFUN([LIBZMQ_CHECK_POLLER_EPOLL_CLOEXEC], [{
+    AC_RUN_IFELSE([
+        AC_LANG_PROGRAM([
+#include <sys/epoll.h>
+        ],[[
+struct epoll_event t_ev;
+int r;
+r = epoll_create1(EPOLL_CLOEXEC);
+return(r < 0);
+        ]])],
+        [$1],[$2],[
+            AC_LINK_IFELSE([
+                AC_LANG_PROGRAM([
+#include <sys/epoll.h>
+                ],[[
+struct epoll_event t_ev;
+epoll_create1(EPOLL_CLOEXEC);
+                ]])],
+                [$1], [$2]
+            )
+        ]
+    )
+}])
+
 dnl ################################################################################
 dnl # LIBZMQ_CHECK_POLLER_DEVPOLL([action-if-found], [action-if-not-found])        #
 dnl # Checks devpoll polling system                                                #
@@ -803,6 +1008,22 @@ int fd = open("/dev/poll", O_RDWR);
     )
 }])
 
+dnl ################################################################################
+dnl # LIBZMQ_CHECK_POLLER_POLLSET([action-if-found], [action-if-not-found])        #
+dnl # Checks pollset polling system                                                #
+dnl ################################################################################
+AC_DEFUN([LIBZMQ_CHECK_POLLER_POLLSET], [{
+    AC_LINK_IFELSE([
+        AC_LANG_PROGRAM([
+#include <sys/poll.h>
+#include <sys/pollset.h>
+        ],[[
+pollset_t ps = pollset_create(-1);
+        ]])],
+        [$1], [$2]
+    )
+}])
+
 dnl ################################################################################
 dnl # LIBZMQ_CHECK_POLLER_POLL([action-if-found], [action-if-not-found])           #
 dnl # Checks poll polling system                                                   #
@@ -841,7 +1062,33 @@ FD_ZERO(&t_rfds);
 FD_SET(0, &t_rfds);
 tv.tv_sec = 5;
 tv.tv_usec = 0;
-select(1, &t_rfds, NULL, NULL, &tv);
+select(1, &t_rfds, 0, 0, &tv);
+        ]])],
+        [$1],[$2]
+    )
+}])
+
+dnl ################################################################################
+dnl # LIBZMQ_CHECK_PSELECT([action-if-found], [action-if-not-found])               #
+dnl # Checks pselect polling system                                                #
+dnl ################################################################################
+AC_DEFUN([LIBZMQ_CHECK_PSELECT], [{
+    AC_LINK_IFELSE([
+        AC_LANG_PROGRAM([
+#include <sys/select.h>
+#include <signal.h>
+        ],[[
+fd_set t_rfds;
+struct timespec ts;
+FD_ZERO(&t_rfds);
+FD_SET(0, &t_rfds);
+ts.tv_sec = 5;
+ts.tv_nsec = 0;
+sigset_t sigmask, sigmask_without_sigterm;
+sigemptyset(&sigmask);
+sigprocmask(SIG_BLOCK, &sigmask, &sigmask_without_sigterm);
+
+pselect(1, &t_rfds, 0, 0, &ts, &sigmask);
         ]])],
         [$1],[$2]
     )
@@ -856,62 +1103,208 @@ AC_DEFUN([LIBZMQ_CHECK_POLLER], [{
     # Allow user to override poller autodetection
     AC_ARG_WITH([poller],
         [AS_HELP_STRING([--with-poller],
-        [choose polling system manually. Valid values are 'kqueue', 'epoll', 'devpoll', 'poll', 'select', or 'auto'. [default=auto]])])
+        [choose I/O thread polling system manually. Valid values are 'kqueue', 'epoll', 'devpoll', 'pollset', 'poll', 'select', 'wepoll', or 'auto'. [default=auto]])])
 
-    if test "x$with_poller" == "x"; then
+    # Allow user to override poller autodetection
+    AC_ARG_WITH([api_poller],
+        [AS_HELP_STRING([--with-api-poller],
+        [choose zmq_poll(er)_* API polling system manually. Valid values are 'poll', 'select', or 'auto'. [default=auto]])])
+
+    if test "x$with_poller" = "x"; then
         pollers=auto
     else
         pollers=$with_poller
     fi
-    if test "$pollers" == "auto"; then
+    if test "$pollers" = "auto"; then
         # We search for pollers in this order
-        pollers="kqueue epoll devpoll poll select"
+        pollers="kqueue epoll devpoll pollset poll select"
     fi
 
     # try to find suitable polling system. the order of testing is:
-    AC_MSG_NOTICE([Choosing polling system from '$pollers'...])
+    AC_MSG_NOTICE([Choosing I/O thread polling system from '$pollers'...])
     poller_found=0
     for poller in $pollers; do
         case "$poller" in
             kqueue)
                 LIBZMQ_CHECK_POLLER_KQUEUE([
-                    AC_MSG_NOTICE([Using 'kqueue' polling system])
-                    AC_DEFINE(ZMQ_USE_KQUEUE, 1, [Use 'kqueue' polling system])
+                    AC_MSG_NOTICE([Using 'kqueue' I/O thread polling system])
+                    AC_DEFINE(ZMQ_IOTHREAD_POLLER_USE_KQUEUE, 1, [Use 'kqueue' I/O thread polling system])
                     poller_found=1
                 ])
             ;;
             epoll)
-                LIBZMQ_CHECK_POLLER_EPOLL([
-                    AC_MSG_NOTICE([Using 'epoll' polling system])
-                    AC_DEFINE(ZMQ_USE_EPOLL, 1, [Use 'epoll' polling system])
-                    poller_found=1
-                ])
+                case "$host_os" in
+                    solaris*|sunos*)
+                        # Recent illumos and Solaris systems did add epoll()
+                        # syntax, but it does not fully satisfy expectations
+                        # that ZMQ has from Linux systems. Unless you undertake
+                        # to fix the integration, do not disable this exception
+                        # and use select() or poll() on Solarish OSes for now.
+                        AC_MSG_NOTICE([NOT using 'epoll' I/O thread polling system on '$host_os']) ;;
+                    *)
+                        LIBZMQ_CHECK_POLLER_EPOLL_CLOEXEC([
+                            AC_MSG_NOTICE([Using 'epoll' I/O thread polling system with CLOEXEC])
+                            AC_DEFINE(ZMQ_IOTHREAD_POLLER_USE_EPOLL, 1, [Use 'epoll' I/O thread polling system])
+                            AC_DEFINE(ZMQ_IOTHREAD_POLLER_USE_EPOLL_CLOEXEC, 1, [Use 'epoll' I/O thread polling system with CLOEXEC])
+                            poller_found=1
+                            ],[
+                            LIBZMQ_CHECK_POLLER_EPOLL([
+                                AC_MSG_NOTICE([Using 'epoll' I/O thread polling system with CLOEXEC])
+                                AC_DEFINE(ZMQ_IOTHREAD_POLLER_USE_EPOLL, 1, [Use 'epoll' I/O thread polling system])
+                                poller_found=1
+                            ])
+                        ])
+                        ;;
+                esac
             ;;
             devpoll)
                 LIBZMQ_CHECK_POLLER_DEVPOLL([
-                    AC_MSG_NOTICE([Using 'devpoll' polling system])
-                    AC_DEFINE(ZMQ_USE_DEVPOLL, 1, [Use 'devpoll' polling system])
+                    AC_MSG_NOTICE([Using 'devpoll' I/O thread polling system])
+                    AC_DEFINE(ZMQ_IOTHREAD_POLLER_USE_DEVPOLL, 1, [Use 'devpoll' I/O thread polling system])
+                    poller_found=1
+                ])
+            ;;
+            pollset)
+                LIBZMQ_CHECK_POLLER_POLLSET([
+                    AC_MSG_NOTICE([Using 'pollset' I/O thread polling system])
+                    AC_DEFINE(ZMQ_IOTHREAD_POLLER_USE_POLLSET, 1, [Use 'pollset' I/O thread polling system])
                     poller_found=1
                 ])
             ;;
             poll)
                 LIBZMQ_CHECK_POLLER_POLL([
-                    AC_MSG_NOTICE([Using 'poll' polling system])
-                    AC_DEFINE(ZMQ_USE_POLL, 1, [Use 'poll' polling system])
+                    AC_MSG_NOTICE([Using 'poll' I/O thread polling system])
+                    AC_DEFINE(ZMQ_IOTHREAD_POLLER_USE_POLL, 1, [Use 'poll' I/O thread polling system])
                     poller_found=1
                 ])
             ;;
             select)
                 LIBZMQ_CHECK_POLLER_SELECT([
-                    AC_MSG_NOTICE([Using 'select' polling system])
-                    AC_DEFINE(ZMQ_USE_SELECT, 1, [Use 'select' polling system])
+                    AC_MSG_NOTICE([Using 'select' I/O thread polling system])
+                    AC_DEFINE(ZMQ_IOTHREAD_POLLER_USE_SELECT, 1, [Use 'select' I/O thread polling system])
                     poller_found=1
                 ])
             ;;
+            wepoll)
+                # wepoll can only be manually selected
+                AC_MSG_NOTICE([Using 'wepoll' I/O thread polling system])
+                AC_DEFINE(ZMQ_IOTHREAD_POLLER_USE_EPOLL, 1, [Use 'epoll' I/O thread polling system])
+                poller_found=1
+            ;;
         esac
         test $poller_found -eq 1 && break
     done
     if test $poller_found -eq 0; then
         AC_MSG_ERROR([None of '$pollers' are valid pollers on this platform])
     fi
+    if test "x$with_api_poller" = "x"; then
+        with_api_poller=auto
+    fi
+	if test "x$with_api_poller" = "xauto"; then
+		if test $poller = "select"; then
+			api_poller=select
+		elif test $poller = "wepoll"; then
+			api_poller=select
+		else		
+			api_poller=poll
+		fi
+	else
+		api_poller=$with_api_poller
+	fi
+	if test "$api_poller" = "select"; then
+		AC_MSG_NOTICE([Using 'select' zmq_poll(er)_* API polling system])
+		AC_DEFINE(ZMQ_POLL_BASED_ON_SELECT, 1, [Use 'select' zmq_poll(er)_* API polling system])
+	elif test "$api_poller" = "poll"; then
+		AC_MSG_NOTICE([Using 'poll' zmq_poll(er)_* API polling system])
+		AC_DEFINE(ZMQ_POLL_BASED_ON_POLL, 1, [Use 'poll' zmq_poll(er)_* API polling system])
+	else
+        AC_MSG_ERROR([Invalid API poller '$api_poller' specified])
+	fi
+}])
+
+dnl ################################################################################
+dnl # LIBZMQ_CHECK_PPOLL([action-if-found], [action-if-not-found])                 #
+dnl # Check whether zmq_ppoll can be activated, and do so if it can                #
+dnl ################################################################################
+
+AC_DEFUN([LIBZMQ_CHECK_PPOLL], [{
+    AC_REQUIRE([AC_CANONICAL_HOST])
+
+    case "${host_os}" in
+        *mingw*|*cygwin*|*msys*)
+            # Disable ppoll by default on Windows
+            AC_MSG_NOTICE([NOT building active zmq_ppoll on '$host_os']) ;;
+        *)
+            LIBZMQ_CHECK_PSELECT([
+                AC_MSG_NOTICE([Building with zmq_ppoll])
+                AC_DEFINE(ZMQ_HAVE_PPOLL, 1, [Build with zmq_ppoll])
+            ])
+        ;;
+    esac
+}])
+
+dnl ##############################################################################
+dnl # LIBZMQ_CHECK_CACHELINE                                                     #
+dnl # Check cacheline size for alignment purposes                                #
+dnl ##############################################################################
+AC_DEFUN([LIBZMQ_CHECK_CACHELINE], [{
+
+    zmq_cacheline_size=64
+    AC_CHECK_TOOL(libzmq_getconf, getconf)
+    if ! test "x$libzmq_getconf" = "x"; then
+        zmq_cacheline_size=$($libzmq_getconf LEVEL1_DCACHE_LINESIZE 2>/dev/null || echo 64)
+        if test "x$zmq_cacheline_size" = "x0" -o  "x$zmq_cacheline_size" = "x-1" -o "x$zmq_cacheline_size" = "xundefined"; then
+            # getconf on some architectures does not know the size, try to fallback to
+            # the value the kernel knows on Linux
+            zmq_cacheline_size=$(cat /sys/devices/system/cpu/cpu0/cache/index0/coherency_line_size 2>/dev/null || echo 64)
+        fi
+    fi
+    if test "x$zmq_cacheline_size" = "xundefined"; then
+        # On some platforms e.g. Fedora33 s390x the cacheline size reported
+        # by getconf as 'undefined'.
+        zmq_cacheline_size=64
+    fi
+	AC_MSG_NOTICE([Using "$zmq_cacheline_size" bytes alignment for lock-free data structures])
+	AC_DEFINE_UNQUOTED(ZMQ_CACHELINE_SIZE, $zmq_cacheline_size, [Using "$zmq_cacheline_size" bytes alignment for lock-free data structures])
+}])
+
+dnl ################################################################################
+dnl # LIBZMQ_CHECK_CV_IMPL([action-if-found], [action-if-not-found])               #
+dnl # Choose condition variable implementation                                     #
+dnl ################################################################################
+
+AC_DEFUN([LIBZMQ_CHECK_CV_IMPL], [{
+    # Allow user to override condition variable autodetection
+    AC_ARG_WITH([cv-impl],
+        [AS_HELP_STRING([--with-cv-impl],
+        [choose condition variable implementation manually. Valid values are 'stl11', 'pthread', 'none', or 'auto'. [default=auto]])])
+
+    if test "x$with_cv_impl" = "x"; then
+        cv_impl=auto
+    else
+        cv_impl=$with_cv_impl
+    fi
+    case $host_os in
+      vxworks*)
+        cv_impl="vxworks"
+        AC_DEFINE(ZMQ_USE_CV_IMPL_VXWORKS, 1, [Use vxworks condition variable implementation.])
+      ;;
+    esac
+    if test "$cv_impl" = "auto" || test "$cv_impl" = "stl11"; then
+        AC_LANG_PUSH([C++])
+        AC_CHECK_HEADERS(condition_variable, [stl11="yes"
+            AC_DEFINE(ZMQ_USE_CV_IMPL_STL11, 1, [Use stl11 condition variable implementation.])],
+            [stl11="no"])
+        AC_LANG_POP([C++])
+        if test "$cv_impl" = "stl11" && test "x$stl11" = "xno"; then
+            AC_MSG_ERROR([--with-cv-impl set to stl11 but cannot find condition_variable])
+        fi
+    fi
+    if test "$cv_impl" = "pthread" || test "x$stl11" = "xno"; then
+        AC_DEFINE(ZMQ_USE_CV_IMPL_PTHREADS, 1, [Use pthread condition variable implementation.])
+    fi
+    if test "$cv_impl" = "none"; then
+        AC_DEFINE(ZMQ_USE_CV_IMPL_NONE, 1, [Use no condition variable implementation.])
+    fi
+       AC_MSG_NOTICE([Using "$cv_impl" condition variable implementation.])
 }])

appveyor.yml

@@ -0,0 +1,328 @@
+version: build-{build}
+
+shallow_clone: true
+
+os: Visual Studio 2013
+
+environment:
+  CMAKE_GENERATOR: "Visual Studio 12 2013"
+  MSVCVERSION: "v120"
+  MSVCYEAR: "vs2013"
+  ENABLE_DRAFTS: ON
+  matrix:
+    - platform: x64
+      configuration: Release
+      WITH_LIBSODIUM: ON
+      ENABLE_CURVE: ON
+      APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2019
+      CMAKE_GENERATOR: "Visual Studio 16 2019"
+      MSVCVERSION: "v142"
+      MSVCYEAR: "vs2019"
+      ARTIFACT_NAME: v142-x64
+    - platform: Win32
+      configuration: Release
+      WITH_LIBSODIUM: OFF # unavailable build files for VS2008
+      ENABLE_CURVE: OFF
+      CMAKE_GENERATOR: "Visual Studio 9 2008"
+      MSVCVERSION: "v90"
+      MSVCYEAR: "vs2008"
+      ARTIFACT_NAME: v90
+    - platform: Win32
+      configuration: Release
+      WITH_LIBSODIUM: OFF
+      ENABLE_CURVE: OFF
+      CMAKE_GENERATOR: "Visual Studio 10 2010"
+      MSVCVERSION: "v100"
+      MSVCYEAR: "vs2010"
+      ARTIFACT_NAME: v100
+    - platform: Win32
+      configuration: Release
+      WITH_LIBSODIUM: ON
+      ENABLE_CURVE: ON
+      ARTIFACT_NAME: v120
+    - platform: x64
+      configuration: Release
+      WITH_LIBSODIUM: ON
+      ENABLE_CURVE: ON
+      ARTIFACT_NAME: v120-x64
+    - platform: Win32
+      configuration: Release
+      POLLER: epoll
+      API_POLLER: poll
+      WITH_LIBSODIUM: ON
+      ENABLE_CURVE: ON
+      TEST_OPTIONS: '-E "(test_many_sockets)"'
+      ARTIFACT_NAME: v120-epoll
+    - platform: Win32
+      configuration: Debug
+      WITH_LIBSODIUM: ON
+      ENABLE_CURVE: ON
+      TEST_OPTIONS: '-E "(test_many_sockets)"'
+      ARTIFACT_NAME: v120-gd
+    - platform: x64
+      configuration: Debug
+      WITH_LIBSODIUM: ON
+      ENABLE_CURVE: ON
+      TEST_OPTIONS: '-E "(test_many_sockets)"'
+      ARTIFACT_NAME: v120-gd-x64
+    - platform: Win32
+      configuration: Release
+      WITH_LIBSODIUM: OFF
+      ENABLE_CURVE: OFF
+      ENABLE_DRAFTS: OFF
+      ARTIFACT_NAME: v120-nocurve
+    - platform: Win32
+      configuration: Release
+      WITH_LIBSODIUM: ON
+      ENABLE_CURVE: ON
+      APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2015
+      CMAKE_GENERATOR: "Visual Studio 14 2015"
+      MSVCVERSION: "v140"
+      MSVCYEAR: "vs2015"
+      ARTIFACT_NAME: v140
+    - platform: x64
+      configuration: Release
+      WITH_LIBSODIUM: ON
+      ENABLE_CURVE: ON
+      APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2015
+      CMAKE_GENERATOR: "Visual Studio 14 2015"
+      MSVCVERSION: "v140"
+      MSVCYEAR: "vs2015"
+      ARTIFACT_NAME: v140-x64
+    - platform: Win32
+      configuration: Release
+      WITH_LIBSODIUM: ON
+      ENABLE_CURVE: ON
+      APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2017
+      CMAKE_GENERATOR: "Visual Studio 15 2017"
+      MSVCVERSION: "v141"
+      MSVCYEAR: "vs2017"
+      TEST_OPTIONS: '-E "(test_many_sockets)"'
+      ARTIFACT_NAME: v141
+    - platform: x64
+      configuration: Release
+      WITH_LIBSODIUM: ON
+      ENABLE_CURVE: ON
+      APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2017
+      CMAKE_GENERATOR: "Visual Studio 15 2017"
+      MSVCVERSION: "v141"
+      MSVCYEAR: "vs2017"
+      TEST_OPTIONS: '-E "(test_many_sockets)"'
+      ARTIFACT_NAME: v141-x64
+    - platform: cygwin64
+      WITH_LIBSODIUM: OFF
+      ENABLE_CURVE: OFF
+      CMAKE_GENERATOR: "Unix Makefiles"
+      ARTIFACT_NAME: cygwin64
+    - platform: mingw64
+      WITH_LIBSODIUM: OFF
+      ENABLE_CURVE: OFF
+      CMAKE_GENERATOR: "MSYS Makefiles"
+      ARTIFACT_NAME: mingw64
+    - platform: Win32-uwp
+      configuration: Debug
+      WITH_LIBSODIUM: OFF
+      ENABLE_CURVE: OFF
+      APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2017
+      CMAKE_GENERATOR: "Visual Studio 15 2017"
+      MSVCVERSION: "v141"
+      MSVCYEAR: "vs2017"
+      ARTIFACT_NAME: v141-gd-uwp
+      CMAKE_SYSTEM_NAME: WindowsStore
+      CMAKE_SYSTEM_VERSION: 10.0.18362
+      EXTRA_FLAGS: -DCMAKE_SYSTEM_NAME=%CMAKE_SYSTEM_NAME% -DCMAKE_SYSTEM_VERSION=%CMAKE_SYSTEM_VERSION% -DBUILD_TESTS=OFF
+    - platform: Win32-uwp
+      configuration: Release
+      WITH_LIBSODIUM: OFF
+      ENABLE_CURVE: OFF
+      APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2017
+      CMAKE_GENERATOR: "Visual Studio 15 2017"
+      MSVCVERSION: "v141"
+      MSVCYEAR: "vs2017"
+      ARTIFACT_NAME: v141-uwp
+      CMAKE_SYSTEM_NAME: WindowsStore
+      CMAKE_SYSTEM_VERSION: 10.0.18362
+      EXTRA_FLAGS: -DCMAKE_SYSTEM_NAME=%CMAKE_SYSTEM_NAME% -DCMAKE_SYSTEM_VERSION=%CMAKE_SYSTEM_VERSION% -DBUILD_TESTS=OFF
+
+matrix:
+  fast_finish: false
+  allow_failures:
+    - platform: cygwin64 # TODO allow failures until tests are fixed
+    - platform: mingw64  # TODO allow failures until tests are fixed
+
+init:
+  - cmd: if "%NO_PR%"=="TRUE" (
+            if "%APPVEYOR_PULL_REQUEST_NUMBER%" NEQ "" (
+                echo "Build is disabled for PRs, aborting" &&
+                appveyor exit
+            )
+         )
+  #- ps: $blockRdp = $true; iex ((new-object net.webclient).DownloadString('https://raw.githubusercontent.com/appveyor/ci/master/scripts/enable-rdp.ps1'))
+  - cmake --version
+  - msbuild /version
+  - cmd: reg add "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Terminal Server\WinStations\RDP-Tcp" /v UserAuthentication /t REG_DWORD /d 0 /f
+
+cache:
+    - C:\projects\libsodium
+    - C:\cygwin64\var\cache\setup
+
+install:
+  - cmd: if "%Platform%"=="cygwin64" C:\cygwin64\setup-x86_64.exe --quiet-mode --no-shortcuts --upgrade-also --packages cmake,cygwin-devel,gcc-g++,libncurses-devel,make,pkg-config
+  - cmd: if "%Platform%"=="cygwin64" set PATH=C:\cygwin64\bin;%PATH%
+  - cmd: if "%Platform%"=="mingw64" C:\msys64\usr\bin\bash -lc "pacman -Qg"
+  - cmd: if "%Platform%"=="mingw64" set PATH=C:\msys64\usr\bin;%PATH%
+  - cmd: if "%Platform%"=="x64" (if not "%MSVCVERSION%"=="v142" set "CMAKE_GENERATOR=%CMAKE_GENERATOR% Win64")
+  - cmd: echo "Generator='%CMAKE_GENERATOR%'"
+  - cmd: echo "Platform='%Platform%'"
+  - cmd: if "%WITH_LIBSODIUM%"=="ON" set LIBSODIUMDIR=C:\projects\libsodium
+  - cmd: if "%WITH_LIBSODIUM%"=="ON" (
+                git config --global user.email "test@appveyor.com" &&
+                git config --global user.name "appveyor"
+         )
+  - cmd: if "%WITH_LIBSODIUM%"=="ON" (
+            if not exist "%LIBSODIUMDIR%" (
+                git clone --branch stable --depth 1 --quiet "https://github.com/jedisct1/libsodium.git" %LIBSODIUMDIR%
+            ) else (
+                git -C "%LIBSODIUMDIR%" fetch --all && git -C "%LIBSODIUMDIR%" reset --hard origin/stable
+            )
+         )
+  - cmd: if "%WITH_LIBSODIUM%"=="ON" msbuild /v:minimal /maxcpucount:%NUMBER_OF_PROCESSORS% /p:Configuration=%Configuration%DLL %LIBSODIUMDIR%\builds\msvc\%MSVCYEAR%\libsodium\libsodium.vcxproj
+  - cmd: if "%WITH_LIBSODIUM%"=="ON" set SODIUM_LIBRARY_DIR="%LIBSODIUMDIR%\bin\%Platform%\%Configuration%\%MSVCVERSION%\dynamic"
+  - cmd: if "%WITH_LIBSODIUM%"=="ON" set SODIUM_INCLUDE_DIR="%LIBSODIUMDIR%\src\libsodium\include"
+  - ps: if (${env:WITH_LIBSODIUM} -eq "ON") { Copy-Item "C:\projects\libsodium\bin\${env:Platform}\${env:Configuration}\${env:MSVCVERSION}\dynamic\libsodium.lib" -Destination "C:\projects\libsodium\bin\${env:Platform}\${env:Configuration}\${env:MSVCVERSION}\dynamic\sodium.lib" }
+
+clone_folder: C:\projects\libzmq
+
+before_build:
+  - cmd: set LIBZMQ_SRCDIR=%cd%
+  - cmd: set LIBZMQ_BUILDDIR=C:\projects\build_libzmq
+  # TODO this does not work with sonarcloud.io, as it misses the sonar-cxx plugin
+  # - cmd: curl -L https://sonarsource.bintray.com/Distribution/sonar-scanner-cli/sonar-scanner-cli-3.1.0.1141-windows.zip -o sonar-scanner-cli-3.1.0.1141-windows.zip
+  # - cmd: unzip sonar-scanner-cli-3.1.0.1141-windows.zip
+  # - cmd: set BUILDLOG="%LIBZMQ_SRCDIR%\build.log"
+  - cmd: md "%LIBZMQ_BUILDDIR%"
+  - cd "%LIBZMQ_BUILDDIR%"
+  - cmd: if "%PLATFORM%" == "cygwin64" set APPVEYOR_BUILD_FOLDER=/cygdrive/C/projects/libzmq
+  - cmd: if "%ENABLE_ANALYSIS%"=="ON" ( set LIBZMQ_WERROR="OFF" ) else ( set LIBZMQ_WERROR="ON" )
+  - cmd: cmake -D CMAKE_INCLUDE_PATH="%SODIUM_INCLUDE_DIR%" -D CMAKE_LIBRARY_PATH="%SODIUM_LIBRARY_DIR%" -D WITH_LIBSODIUM="%WITH_LIBSODIUM%" -D ENABLE_DRAFTS="%ENABLE_DRAFTS%" -D ENABLE_ANALYSIS="%ENABLE_ANALYSIS%" -D ENABLE_CURVE="%ENABLE_CURVE%" -D API_POLLER="%API_POLLER%" -D POLLER="%POLLER%" %EXTRA_FLAGS% -D WITH_LIBSODIUM="%WITH_LIBSODIUM%" -D LIBZMQ_WERROR="%LIBZMQ_WERROR%" -G "%CMAKE_GENERATOR%" "%APPVEYOR_BUILD_FOLDER%"
+  - cmd: cd "%LIBZMQ_SRCDIR%"
+  - ps: $env:ZMQ_VERSION_MAJOR = (Select-String -Path .\include\zmq.h -Pattern ".*#define ZMQ_VERSION_MAJOR ([0-9]+).*").Matches.Groups[1].Value
+  - ps: $env:ZMQ_VERSION_MINOR = (Select-String -Path .\include\zmq.h -Pattern ".*#define ZMQ_VERSION_MINOR ([0-9]+).*").Matches.Groups[1].Value
+  - ps: $env:ZMQ_VERSION_PATCH = (Select-String -Path .\include\zmq.h -Pattern ".*#define ZMQ_VERSION_PATCH ([0-9]+).*").Matches.Groups[1].Value
+  - ps: $env:ZMQ_VERSION = "${env:ZMQ_VERSION_MAJOR}.${env:ZMQ_VERSION_MINOR}.${env:ZMQ_VERSION_PATCH}"
+  - cmd: echo "ZMQ_VERSION is %ZMQ_VERSION%"
+
+build_script:
+  - cmd: set verbosity=Minimal
+  - cmd: if "%MSVCYEAR%"=="vs2008" set verbosity=Normal
+  - cmd: if "%MSVCYEAR%"=="vs2008" set path=C:\Windows\Microsoft.NET\Framework\v3.5;%path% 
+  - cmd: cd "%LIBZMQ_BUILDDIR%"
+  - cmd: if "%PLATFORM:~0,5%" == "Win32" (
+            if "%MSVCYEAR%"=="vs2008" (
+                cmake --build %LIBZMQ_BUILDDIR% --config %configuration% --target install
+            ) else (
+                cmake --build %LIBZMQ_BUILDDIR% --config %configuration% --target install -- -verbosity:Minimal -maxcpucount -logger:"C:\Program Files\AppVeyor\BuildAgent\Appveyor.MSBuildLogger.dll"
+            )
+         )
+  - cmd: if "%PLATFORM%" == "x64" (
+            cmake --build %LIBZMQ_BUILDDIR% --config %configuration% --target install -- -verbosity:Minimal -maxcpucount -logger:"C:\Program Files\AppVeyor\BuildAgent\Appveyor.MSBuildLogger.dll"
+         )
+  - cmd: if "%PLATFORM%" == "cygwin64" (
+            cmake --build . -- -j5
+         )
+  - cmd: if "%PLATFORM%" == "mingw64" (
+            cmake --build . -- -j5
+         )
+
+# TODO this does not work with sonarcloud.io, as it misses the sonar-cxx plugin
+# build_script:
+  # - cmd: msbuild %LIBZMQ_BUILDDIR%\ZeroMQ.sln /verbosity:detailed >%BUILDLOG%
+
+after_build:
+  # TODO this does not work with sonarcloud.io, as it misses the sonar-cxx plugin
+  # - cmd: cd "%LIBZMQ_SRCDIR%"
+  # - cmd: dir
+  # - cmd: sonar-scanner-3.1.0.1141-windows\bin\sonar-scanner 
+            # -Dsonar.scm.provider=git 
+            # -Dsonar.projectKey=libzmq-msvc 
+            # -Dsonar.organization=sigiesec-github 
+            # -Dsonar.sources=include,src,tests,unittests 
+            # -Dsonar.host.url=https://sonarcloud.io 
+            # -Dsonar.login=%SONARQUBE_TOKEN% 
+            # -Dsonar.cxx.compiler.parser="Visual C++" 
+            # -Dsonar.cxx.compiler.reportPath=build.log 
+            # -Dsonar.cxx.compiler.charset=UTF-8 
+            # -Dsonar.cxx.compiler.regex=^(?<filename>.*)\\((?<line>[0-9]+)\\):\\x20warning\\x20(?<id>C\\d\\d\\d\\d):(?<message>.*)$
+# TODO this should be done differently, using the INSTALL cmake target, the current handling depends on the details of the CMakeLists.txt
+  - cmd: cd %LIBZMQ_BUILDDIR%\bin\%Configuration%"
+  - cmd: if "%WITH_LIBSODIUM%"=="ON" copy "%SODIUM_LIBRARY_DIR%\libsodium.dll" .
+  - cmd: copy "%LIBZMQ_SRCDIR%\include\zmq.h" .
+  - cmd: copy ..\..\lib\%Configuration%\libzmq*.lib . & exit 0
+  - cmd: 7z a -y -bd -mx=9 libzmq.zip *.exe *.dll *.pdb *.h *.lib
+  - ps: Push-AppveyorArtifact "libzmq.zip" -Filename "libzmq-${env:ARTIFACT_NAME}-${env:ZMQ_VERSION_MAJOR}_${env:ZMQ_VERSION_MINOR}_${env:ZMQ_VERSION_PATCH}.zip"
+
+test_script:
+  - cmd: cd "%LIBZMQ_BUILDDIR%"
+# TODO run tests in parallel only on selected platforms, since they fail on others, see https://github.com/zeromq/libzmq/issues/3123
+  - cmd: if "%CMAKE_GENERATOR%"=="Visual Studio 12 2013" set PARALLELIZE=ON
+  - cmd: if "%CMAKE_GENERATOR%"=="Visual Studio 14 2015" set PARALLELIZE=ON
+  - cmd: if "%CMAKE_GENERATOR%"=="Visual Studio 12 2013 Win64" set PARALLELIZE=ON
+  - cmd: if "%CMAKE_GENERATOR%"=="Visual Studio 14 2015 Win64" set PARALLELIZE=ON
+  - cmd: if not defined TEST_OPTIONS set "TEST_OPTIONS= "
+  - cmd: if "%PARALLELIZE%"=="ON" (
+            echo "Running tests in parallel" &&
+            set TEST_OPTIONS=%TEST_OPTIONS% -j5
+         )
+  - cmd: if "%APPVEYOR_REPO_TAG%"=="false" (ctest -C "%Configuration%" -V %TEST_OPTIONS%)
+
+
+# the analysis build is repeated; apparently appveyor only uses the first section that matches some branch
+for:
+-
+    branches:
+        only:
+            - master
+    environment:
+        matrix:
+            - platform: Win32
+              configuration: Release
+              API_POLLER: poll
+              WITH_LIBSODIUM: ON
+              ENABLE_CURVE: ON
+              NO_PR: TRUE
+            - platform: x64
+              configuration: Release
+              WITH_LIBSODIUM: ON
+              ENABLE_CURVE: ON
+              NO_PR: TRUE
+            - platform: Win32
+              configuration: Release
+              WITH_LIBSODIUM: ON
+              ENABLE_CURVE: ON
+              NO_PR: TRUE
+            - platform: Win32
+              configuration: Release
+              WITH_LIBSODIUM: ON
+              ENABLE_CURVE: ON
+              ENABLE_ANALYSIS: ON
+              APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2017
+              CMAKE_GENERATOR: "Visual Studio 15 2017"
+              MSVCVERSION: "v141"
+              MSVCYEAR: "vs2017"
+              NO_PR: TRUE
+-
+    branches:
+        only:
+            - /.*analyze$/
+    environment:
+        matrix:
+            - platform: Win32
+              configuration: Release
+              WITH_LIBSODIUM: ON
+              ENABLE_CURVE: ON
+              ENABLE_ANALYSIS: ON
+              APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2017
+              CMAKE_GENERATOR: "Visual Studio 15 2017"
+              MSVCVERSION: "v141"
+              MSVCYEAR: "vs2017"
+              NO_PR: TRUE

autogen.sh

@@ -1,26 +1,9 @@
 #!/bin/sh
-
-#    Copyright (c) 2007-2009 iMatix Corporation
-#    Copyright (c) 2007-2011 Other contributors as noted in the AUTHORS file
-#
-#   This file is part of 0MQ.
-#
-#   0MQ is free software; you can redistribute it and/or modify it under
-#   the terms of the GNU Lesser General Public License as published by
-#   the Free Software Foundation; either version 3 of the License, or
-#   (at your option) any later version.
-#
-#   0MQ is distributed in the hope that it will be useful,
-#   but WITHOUT ANY WARRANTY; without even the implied warranty of
-#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-#   GNU Lesser General Public License for more details.
-#
-#   You should have received a copy of the GNU Lesser General Public License
-#   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+# SPDX-License-Identifier: MPL-2.0
 
 # Script to generate all required files from fresh git checkout.
 
-# Debian and Ubuntu do not shipt libtool anymore, but OSX does not ship libtoolize.
+# Debian and Ubuntu do not ship libtool anymore, but OSX does not ship libtoolize.
 command -v libtoolize >/dev/null 2>&1
 if  [ $? -ne 0 ]; then
     command -v libtool >/dev/null 2>&1
@@ -43,7 +26,8 @@ if [ $? -ne 0 ]; then
 fi
 
 autoreconf --install --force --verbose -I config
-if [ $? -ne 0 ]; then
-    echo "autogen.sh: error: autoreconf exited with status $?" 1>&2
+res=$?
+if [ "$res" -ne 0 ]; then
+    echo "autogen.sh: error: autoreconf exited with status $res" 1>&2
     exit 1
 fi

build_qnx/Makefile

@@ -0,0 +1,8 @@
+LIST=OS
+ifndef QRECURSE
+QRECURSE=recurse.mk
+ifdef QCONFIG
+QRDIR=$(dir $(QCONFIG))
+endif
+endif
+include $(QRDIR)$(QRECURSE)

build_qnx/common.mk

@@ -0,0 +1,57 @@
+ifndef QCONFIG
+QCONFIG=qconfig.mk
+endif
+include $(QCONFIG)
+
+NAME=libzmq
+
+#$(INSTALL_ROOT_$(OS)) is pointing to $QNX_TARGET
+#by default, unless it was manually re-routed to
+#a staging area by setting both INSTALL_ROOT_nto
+#and USE_INSTALL_ROOT
+LIBZMQ_INSTALL_ROOT ?= $(INSTALL_ROOT_$(OS))
+
+LIBZMQ_VERSION = .4.3.4
+
+#choose Release or Debug
+CMAKE_BUILD_TYPE ?= Release
+
+#override 'all' target to bypass the default QNX build system
+ALL_DEPENDENCIES = libzmq_all
+.PHONY: libzmq_all install check clean
+
+CFLAGS += $(FLAGS)
+LDFLAGS += -Wl,--build-id=md5
+
+include $(MKFILES_ROOT)/qtargets.mk
+
+LIBZMQ_DIR = $(PROJECT_ROOT)/../
+
+CMAKE_ARGS = -DCMAKE_TOOLCHAIN_FILE=$(PROJECT_ROOT)/qnx.nto.toolchain.cmake \
+             -DCMAKE_INSTALL_PREFIX=$(LIBZMQ_INSTALL_ROOT)/${CPUVARDIR}/usr \
+             -DCMAKE_BUILD_TYPE=$(CMAKE_BUILD_TYPE) \
+             -DEXTRA_CMAKE_C_FLAGS="$(CFLAGS)" \
+             -DEXTRA_CMAKE_CXX_FLAGS="$(CFLAGS)" \
+             -DEXTRA_CMAKE_ASM_FLAGS="$(FLAGS)" \
+             -DEXTRA_CMAKE_LINKER_FLAGS="$(LDFLAGS)" \
+             -DCMAKE_INSTALL_INCLUDEDIR=$(LIBZMQ_INSTALL_ROOT)/usr/include \
+             -DCMAKE_INSTALL_LIBDIR=$(LIBZMQ_INSTALL_ROOT)/$(CPUVARDIR)/usr/lib \
+             -DCMAKE_INSTALL_BINDIR=$(LIBZMQ_INSTALL_ROOT)/$(CPUVARDIR)/usr/bin \
+             -DCPUVARDIR=$(CPUVARDIR)
+
+MAKE_ARGS ?= -j $(firstword $(JLEVEL) 1)
+
+ifndef NO_TARGET_OVERRIDE
+libzmq_all:
+	@mkdir -p build
+	@cd build && cmake $(CMAKE_ARGS) $(LIBZMQ_DIR)
+	@cd build && make VERBOSE=1 all $(MAKE_ARGS)
+
+install check: libzmq_all
+	@cd build && make VERBOSE=1 install
+
+clean iclean spotless:
+	rm -rf build
+
+uninstall:
+endif

build_qnx/nto/Makefile

@@ -0,0 +1,8 @@
+LIST=CPU
+ifndef QRECURSE
+QRECURSE=recurse.mk
+ifdef QCONFIG
+QRDIR=$(dir $(QCONFIG))
+endif
+endif
+include $(QRDIR)$(QRECURSE)

build_qnx/nto/aarch64/Makefile

@@ -0,0 +1,8 @@
+LIST=VARIANT
+ifndef QRECURSE
+QRECURSE=recurse.mk
+ifdef QCONFIG
+QRDIR=$(dir $(QCONFIG))
+endif
+endif
+include $(QRDIR)$(QRECURSE)

build_qnx/nto/aarch64/le/Makefile

@@ -0,0 +1,5 @@
+include ../../../common.mk
+
+CMAKE_ARGS += -DCMAKE_SYSTEM_PROCESSOR=aarch64 
+FLAGS      += $(VFLAG_le) $(CCVFLAG_le)
+LDFLAGS    += $(VFLAG_le) $(LDVFLAG_le)

build_qnx/nto/x86_64/Makefile

@@ -0,0 +1,8 @@
+LIST=VARIANT
+ifndef QRECURSE
+QRECURSE=recurse.mk
+ifdef QCONFIG
+QRDIR=$(dir $(QCONFIG))
+endif
+endif
+include $(QRDIR)$(QRECURSE)

build_qnx/nto/x86_64/o/Makefile

@@ -0,0 +1,5 @@
+include ../../../common.mk
+
+CMAKE_ARGS += -DCMAKE_SYSTEM_PROCESSOR=x86_64
+FLAGS      += $(VFLAG_o) $(CCVFLAG_o)
+LDFLAGS    += $(VFLAG_o) $(LDVFLAG_o)

build_qnx/qnx.nto.toolchain.cmake

@@ -0,0 +1,34 @@
+if("$ENV{QNX_HOST}" STREQUAL "")
+    message(FATAL_ERROR "QNX_HOST environment variable not found. Please set the variable to your host's build tools")
+endif()
+if("$ENV{QNX_TARGET}" STREQUAL "")
+    message(FATAL_ERROR "QNX_TARGET environment variable not found. Please set the variable to the qnx target location")
+endif()
+
+if(CMAKE_HOST_WIN32)
+    set(HOST_EXECUTABLE_SUFFIX ".exe")
+    #convert windows paths to cmake paths
+    file(TO_CMAKE_PATH "$ENV{QNX_HOST}" QNX_HOST)
+    file(TO_CMAKE_PATH "$ENV{QNX_TARGET}" QNX_TARGET)
+else()
+    set(QNX_HOST "$ENV{QNX_HOST}")
+    set(QNX_TARGET "$ENV{QNX_TARGET}")
+endif()
+
+message(STATUS "using QNX_HOST ${QNX_HOST}")
+message(STATUS "using QNX_TARGET ${QNX_TARGET}")
+
+set(QNX TRUE)
+set(CMAKE_SYSTEM_NAME QNX)
+set(CMAKE_C_COMPILER ${QNX_HOST}/usr/bin/qcc)
+set(CMAKE_CXX_COMPILER ${QNX_HOST}/usr/bin/qcc)
+set(CMAKE_ASM_COMPILER ${QNX_HOST}/usr/bin/qcc)
+set(CMAKE_AR "${QNX_HOST}/usr/bin/nto${CMAKE_SYSTEM_PROCESSOR}-ar${HOST_EXECUTABLE_SUFFIX}" CACHE PATH "archiver")
+set(CMAKE_RANLIB "${QNX_HOST}/usr/bin/nto${CMAKE_SYSTEM_PROCESSOR}-ranlib${HOST_EXECUTABLE_SUFFIX}" CACHE PATH "ranlib")
+
+set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Vgcc_nto${CMAKE_SYSTEM_PROCESSOR} ${EXTRA_CMAKE_C_FLAGS}" CACHE STRING "c_flags")
+set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Vgcc_nto${CMAKE_SYSTEM_PROCESSOR} -std=gnu++11 ${EXTRA_CMAKE_CXX_FLAGS}" CACHE STRING "cxx_flags")
+set(CMAKE_ASM_FLAGS "${CMAKE_ASM_FLAGS} -Vgcc_nto${CMAKE_SYSTEM_PROCESSOR} ${EXTRA_CMAKE_ASM_FLAGS}" CACHE STRING "asm_flags")
+
+set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} ${EXTRA_CMAKE_LINKER_FLAGS}" CACHE STRING "exe_linker_flags")
+set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} ${EXTRA_CMAKE_LINKER_FLAGS}" CACHE STRING "so_linker_flags")

builds/Makefile.am

@@ -2,6 +2,7 @@
 #  msvc directory does its own stuff.
 
 EXTRA_DIST = \
+ 	cygwin/Makefile.cygwin \
 	zos/makelibzmq \
 	zos/cxxall \
 	zos/README.md \
@@ -11,16 +12,23 @@ EXTRA_DIST = \
 	zos/test_fork.cpp \
 	zos/maketests \
 	zos/runtests \
+	cygwin/Makefile.cygwin \
 	mingw32/Makefile.mingw32 \
 	mingw32/platform.hpp \
+	cmake/ci_build.sh \
 	cmake/Modules \
-	cmake/Modules/FindAsciiDoc.cmake \
-	cmake/Modules/TestZMQVersion.cmake \
-	cmake/Modules/ZMQSourceRunChecks.cmake \
 	cmake/NSIS.template32.in \
-	cmake/platform.hpp.in \
 	cmake/NSIS.template64.in \
+	cmake/ZeroMQConfig.cmake.in \
+	cmake/clang-format-check.sh.in \
+	cmake/platform.hpp.in \
+	valgrind/ci_build.sh \
 	valgrind/valgrind.supp \
 	valgrind/vg \
 	nuget/readme.nuget \
-	nuget/libzmq.autopkg
+	nuget/libzmq.autopkg \
+	android/Dockerfile \
+	android/README.md \
+	android/android_build_helper.sh \
+	android/ci_build.sh \
+	android/build.sh

builds/README

@@ -0,0 +1,14 @@
+This directory holds build tools, i.e. tools we use to build the current
+code tree. Packaging tools (which take released tarballs or github code
+repos) should go into /packaging.
+
+Note: 'deprecated-msvc' contains deprecated prepared Visual Studio Solution 
+files for various Visual Studio versions. These are no longer maintained, 
+and may or may not work. Please use cmake instead to build with Visual
+Studio. Rationale: The solution and project files are hard to maintain,
+since there are different variants for each Visual Studio version.
+The tests have never been included there for this reason, so they were
+never usable for actual development of libzmq. If you encounter that 
+something that worked before does not work with CMake, please open as 
+issue at https://github.com/zeromq/libzmq/issues.
+

builds/abi-compliance-checker/ci_build.sh

@@ -0,0 +1,44 @@
+#!/usr/bin/env bash
+
+set -x
+set -e
+
+cd ../../
+
+mkdir tmp
+BUILD_PREFIX=$PWD/tmp
+
+CONFIG_OPTS=()
+CONFIG_OPTS+=("CFLAGS=-I${BUILD_PREFIX}/include -g -Og")
+CONFIG_OPTS+=("CPPFLAGS=-I${BUILD_PREFIX}/include")
+CONFIG_OPTS+=("CXXFLAGS=-I${BUILD_PREFIX}/include -g -Og")
+CONFIG_OPTS+=("LDFLAGS=-L${BUILD_PREFIX}/lib")
+CONFIG_OPTS+=("PKG_CONFIG_PATH=${BUILD_PREFIX}/lib/pkgconfig")
+CONFIG_OPTS+=("--prefix=${BUILD_PREFIX}")
+CONFIG_OPTS+=("--enable-drafts=no")
+
+function print_abi_api_breakages() {
+   echo "ABI breakages detected:"
+   cat compat_reports/libzmq/${LATEST_VERSION}_to_HEAD/abi_affected.txt | c++filt
+   echo "API breakages detected:"
+   cat compat_reports/libzmq/${LATEST_VERSION}_to_HEAD/src_affected.txt | c++filt
+   exit 1
+}
+
+git fetch --unshallow
+git fetch --all --tags
+LATEST_VERSION=$(git describe --abbrev=0 --tags)
+
+./autogen.sh
+./configure "${CONFIG_OPTS[@]}"
+make VERBOSE=1 -j5
+abi-dumper src/.libs/libzmq.so -o ${BUILD_PREFIX}/libzmq.head.dump -lver HEAD
+
+git clone --depth 1 -b ${LATEST_VERSION} https://github.com/zeromq/libzmq.git latest_release
+cd latest_release
+./autogen.sh
+./configure "${CONFIG_OPTS[@]}"
+make VERBOSe=1 -j5
+abi-dumper src/.libs/libzmq.so -o ${BUILD_PREFIX}/libzmq.latest.dump -lver ${LATEST_VERSION}
+
+abi-compliance-checker -l libzmq -d1 ${BUILD_PREFIX}/libzmq.latest.dump -d2 ${BUILD_PREFIX}/libzmq.head.dump -list-affected || print_abi_api_breakages

builds/android/Dockerfile

@@ -0,0 +1,63 @@
+# FROM		debian:7       # APT repo no more available.
+# FROM		debian:8
+# FROM		debian:9
+# FROM		debian:10
+# FROM		debian:11
+
+# FROM		ubuntu:12.04   # APT repo no more available.
+# FROM		ubuntu:14.04
+# FROM		ubuntu:16.04
+# FROM		ubuntu:18.04
+# FROM		ubuntu:20.04
+FROM		ubuntu:22.04
+
+ENV		DEBIAN_FRONTEND=noninteractive
+
+RUN		apt-get update -y -q
+
+RUN		apt-get install -y -q \
+			apt-utils
+
+RUN		apt-get install -y -q \
+			autoconf \
+			automake \
+			cmake \
+			file \
+			git \
+			libtool \
+			pkg-config \
+			unzip \
+			wget
+
+# Create user ZMQ, and run Android build with it.
+# This ensures that nothing weird is performed with
+# ROOT privileges.
+RUN		useradd -d /home/zmq -m -s /bin/bash zmq
+USER		zmq
+WORKDIR		/home/zmq
+
+# Install android NDK (up to NDK 22):
+# ENV		NDK_VERSION=android-ndk-r18  # Build failed to detect NDK tools (bug).
+# ENV		NDK_VERSION=android-ndk-r19  # Build passed
+# ENV		NDK_VERSION=android-ndk-r20  # Build passed
+# ENV		NDK_VERSION=android-ndk-r21  # Build passed
+# ENV		NDK_VERSION=android-ndk-r22  # Build passed
+
+# RUN		wget -q -O ndk_archive.zip http://dl.google.com/android/repository/${NDK_VERSION}-linux-x86_64.zip
+
+# Install android NDK (from NDK 23):
+# ENV		NDK_VERSION=android-ndk-r23  # Build passed
+# ENV		NDK_VERSION=android-ndk-r24  # Build passed
+ENV		NDK_VERSION=android-ndk-r25
+
+RUN		wget -q -O ndk_archive.zip http://dl.google.com/android/repository/${NDK_VERSION}-linux.zip
+
+RUN		unzip -q ndk_archive.zip
+
+# Clone and build LIBZMQ
+ENV		ANDROID_NDK_ROOT=/home/zmq/${NDK_VERSION}
+
+RUN		git clone --quiet --depth 1 https://github.com/zeromq/libzmq.git
+
+RUN		libzmq/builds/android/ci_build.sh
+

builds/android/README.md

@@ -0,0 +1,160 @@
+# Android Build
+
+## Preamble
+
+The last known NDK is automatically downloaded, if not specified otherwise.
+
+As indicated in the main [README](../../README.md#supported-platforms-with-primary-CI), Android support is still DRAFT.
+
+## Configuration
+
+### Basics
+
+Basically, LIBZMQ build for Android, relies on exported variables.
+
+Provided build scripts can mainly be used like
+
+    export XXX=xxx
+    export YYY=yyy
+    ...
+    cd <libzmq>/builds/android
+    ./<build_script>
+
+
+### Android NDK
+
+LIBZMQ is tested against Android NDK versions r19 to r25.
+
+By default, LIBZMQ uses NDK `android-ndk-r25`, but you can specify
+a different one:
+
+    export NDK_VERSION=android-ndk-r23c
+
+If you already have installed your favorite NDK somewhere, all you have to
+do is to export and set NDK_VERSION and ANDROID_NDK_ROOT environment
+variables, e.g:
+
+    export NDK_VERSION="android-ndk-r23b"
+    export ANDROID_NDK_ROOT=$HOME/${NDK_VERSION}
+
+**Important:** ANDROID_NDK_ROOT must be an absolute path !
+
+If you specify only NDK_VERSION, ANDROID_NDK_ROOT will be automatically set 
+to its default:
+
+    export ANDROID_NDK_ROOT=/tmp/${NDK_VERSION}
+
+To specify the minimum SDK version set the environment variable below:
+
+    export MIN_SDK_VERSION=21   # Default value if unset
+
+To specify the build directory set the environment variable below:
+
+    export ANDROID_BUILD_DIR=${HOME}/android_build
+
+**Important:** ANDROID_BUILD_ROOT must be an absolute path !
+
+### Android build folder
+
+All Android libraries will be generated under:
+
+    ${ANDROID_BUILD_DIR}/prefix/<arch>/lib
+
+where <arch> is one of `arm`, `arm64`, `x86` or `x86_64`.
+
+### Android build cleanup
+
+Build and Dependency storage folders are automatically cleaned,
+by ci_build.sh. This can be avoided with the help of
+
+    ANDROID_BUILD_DIR="no"
+
+If you turn this to "no", make sure to clean what has to be, before
+calling `build.sh` or `ci_build.sh`.
+
+### Prebuilt Android libraries
+
+Android prebuilt libraries have to be stored under
+
+    ANDROID_BUILD_DIR/prefix/<arch>/lib
+
+Do not forget to disable [Android cleanup](#android-build-cleanup).
+
+### Dependencies
+
+By default, `build.sh` download dependencies under `/tmp/tmp-deps`.
+
+You can specify another folder with the help of ANDROID_DEPENDENCIES_DIR:
+
+   ANDROID_DEPENDENCIES_DIR=${HOME}/my_dependencies
+
+If you place your own dependency source trees there, 
+do not forget to disable [Android cleanup](#android-build-cleanup).
+
+### Cryptographic configuration
+
+The variable CURVE accepts 2 different values:
+
+    ""          : LIBZMQ is built without any encryption support.
+    "libsodium" : LIBZMQ is built with LIBSODIUM encryption support (see below).
+
+### Other configuration variables
+
+You can also check configuration variables in `build.sh` itself, in its
+"Configuration & tuning options" comment block.
+
+## LIBSODIUM
+
+LIBSODIUM is built along with LIBZMQ, when CURVE="libsodium".
+
+- If you have your own clone of LIBSODIUM, set LIBSODIUM_ROOT to point to
+its folder.
+- If the variable LIBSODIUM_ROOT is not set, LIBZMQ will look for a folder
+'libsodium' close to his own one.
+- If no folder 'libsodium' exists, then LIBZMQ will clone LIBSODIUM from its
+official STABLE branch.
+
+## Build
+
+See chapter [Configuration](#configuration) for configuration options and
+other details.
+
+Select your preferred parameters:
+
+    export XXX=xxx
+    export YYY=yyy
+    ...
+
+and run:
+
+    cd <libzmq>/builds/android
+    ./build.sh [ arm | arm64 | x86 | x86_64 ]
+
+Parameter selection and the calls to build.sh can be located in a
+SHELL script, like in ci_build.sh.
+
+## CI build 
+
+Basically, it will call `build.sh` once, for each Android target.
+
+This script accepts the same configuration variables, but some are set
+with different default values. For instance, the dependencies are not
+downloaded or cloned in `/tmp/tmp-deps, but inside LIBZMQ clone.
+
+It can be used in the same way as build.sh
+
+    export XXX=xxx
+    export YYY=yyy
+    cd <libzmq>/builds/android
+    ./ci_build.sh
+
+
+## Dockerfile
+
+An example of Docker file is provided, for Ubuntu 22.04
+
+Minimal changes are required to support Debian 9 to 11.
+
+Minimal changes are required to support CentOS (7 only), Rocky Linux (8 & 9),
+and many Fedora (22 to 37).
+

builds/android/android_build_helper.sh

@@ -0,0 +1,636 @@
+#!/usr/bin/env bash
+#
+# Copyright (c) 2014, Joe Eli McIlvain
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are met:
+#
+# 1. Redistributions of source code must retain the above copyright notice,
+#    this list of conditions and the following disclaimer.
+#
+# 2. Redistributions in binary form must reproduce the above copyright notice,
+#    this list of conditions and the following disclaimer in the documentation
+#    and/or other materials provided with the distribution.
+#
+# 3. Neither the name of the copyright holder nor the names of its
+#    contributors may be used to endorse or promote products derived from
+#    this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
+# THE POSSIBILITY OF SUCH DAMAGE.
+#
+###
+#
+# Courtesy of Joe Eli McIlvain; original code at:
+# https://github.com/jemc/android_build_helper
+#   android_build_helper.sh
+#
+# The following is a helper script for setting up android builds for
+# "native" libraries maintained with an autotools build system.
+# It merely helps to create the proper cross-compile environment.
+# It makes no attempt to wrap the library or make it accessible to Java code;
+# the intention is to make the bare library available to other "native" code.
+#
+# To get the latest version of this script, please download from:
+#   https://github.com/jemc/android_build_helper
+#
+# You are free to modify and redistribute this script, but if you add
+# improvements, please consider submitting a pull request or patch to the
+# aforementioned upstream repository for the benefit of other users.
+#
+# This script is provided with no express or implied warranties.
+#
+
+########################################################################
+# Utilities & helper functions
+########################################################################
+function android_build_trace {
+    if [ -n "${BUILD_ARCH}" ] ; then
+        echo "LIBZMQ (${BUILD_ARCH}) - $*"
+    else
+        echo "LIBZMQ - $*"
+    fi
+}
+
+function android_build_check_fail {
+    if [ ! ${#ANDROID_BUILD_FAIL[@]} -eq 0 ]; then
+        android_build_trace "Android build failed for the following reasons:"
+        for reason in "${ANDROID_BUILD_FAIL[@]}"; do
+            local formatted_reason="  ${reason}"
+            echo "${formatted_reason}"
+        done
+        exit 1
+    fi
+}
+
+function android_download_ndk {
+    if [ -d "${ANDROID_NDK_ROOT}" ] ; then
+        # NDK folder detected, let's assume it's valid ...
+        android_build_trace "Using existing NDK folder '${ANDROID_NDK_ROOT}'."
+        return
+    fi
+    if [ ! -d  "$(dirname "${ANDROID_NDK_ROOT}")" ] ; then
+        ANDROID_BUILD_FAIL+=("Cannot download NDK in a non existing folder")
+        ANDROID_BUILD_FAIL+=("  $(dirname "${ANDROID_NDK_ROOT}/")")
+    fi
+
+    android_build_check_fail
+
+    local filename
+    local platform="$(uname | tr '[:upper:]' '[:lower:]')"
+    case "${platform}" in
+        linux*)
+            if [ "${NDK_NUMBER}" -ge 2300 ] ; then
+                # Since NDK 23, NDK archives are renamed.
+                filename=${NDK_VERSION}-linux.zip
+            else
+                filename=${NDK_VERSION}-linux-x86_64.zip
+            fi
+            ;;
+        darwin*)
+            if [ "${NDK_NUMBER}" -ge 2300 ] ; then
+                # Since NDK 23, NDK archives are renamed.
+                filename=${NDK_VERSION}-darwin.zip
+            else
+                filename=${NDK_VERSION}-darwin-x86_64.zip
+            fi
+            ;;
+        *)    android_build_trace "Unsupported platform ('${platform}')" ; exit 1 ;;
+    esac
+
+    if [ -z "${filename}" ] ; then
+        ANDROID_BUILD_FAIL+=("Unable to detect NDK filename.")
+    fi
+
+    android_build_check_fail
+
+    android_build_trace "Downloading NDK '${NDK_VERSION}'..."
+    (
+        cd "$(dirname "${ANDROID_NDK_ROOT}")" \
+        && rm -f "${filename}" \
+        && wget -q "http://dl.google.com/android/repository/${filename}" -O "${filename}" \
+        && android_build_trace "Extracting NDK '${filename}'..." \
+        && unzip -q "${filename}" \
+        && android_build_trace "NDK extracted under '${ANDROID_NDK_ROOT}'."
+    ) || {
+        ANDROID_BUILD_FAIL+=("Failed to install NDK ('${NDK_VERSION}')")
+        ANDROID_BUILD_FAIL+=("  ${filename}")
+    }
+
+    android_build_check_fail
+}
+
+function android_build_set_env {
+    BUILD_ARCH=$1
+
+    local platform="$(uname | tr '[:upper:]' '[:lower:]')"
+    case "${platform}" in
+        linux*)
+            export ANDROID_BUILD_PLATFORM=linux-x86_64
+            ;;
+        darwin*)
+            export ANDROID_BUILD_PLATFORM=darwin-x86_64
+            ;;
+        *)    android_build_trace "Unsupported platform ('${platform}')" ; exit 1 ;;
+    esac
+
+    export ANDROID_BUILD_TOOLCHAIN="${ANDROID_NDK_ROOT}/toolchains/llvm/prebuilt/${ANDROID_BUILD_PLATFORM}"
+    export TOOLCHAIN_PATH="${ANDROID_BUILD_TOOLCHAIN}/bin"
+
+    # Set variables for each architecture
+    if [ "${BUILD_ARCH}" == "arm" ]; then
+        export TOOLCHAIN_HOST="arm-linux-androideabi"
+        export TOOLCHAIN_COMP="armv7a-linux-androideabi${MIN_SDK_VERSION}"
+        export TOOLCHAIN_ABI="armeabi-v7a"
+        export TOOLCHAIN_ARCH="arm"
+    elif [ "${BUILD_ARCH}" == "x86" ]; then
+        export TOOLCHAIN_HOST="i686-linux-android"
+        export TOOLCHAIN_COMP="i686-linux-android${MIN_SDK_VERSION}"
+        export TOOLCHAIN_ABI="x86"
+        export TOOLCHAIN_ARCH="x86"
+    elif [ "${BUILD_ARCH}" == "arm64" ]; then
+        export TOOLCHAIN_HOST="aarch64-linux-android"
+        export TOOLCHAIN_COMP="aarch64-linux-android${MIN_SDK_VERSION}"
+        export TOOLCHAIN_ABI="arm64-v8a"
+        export TOOLCHAIN_ARCH="arm64"
+    elif [ "${BUILD_ARCH}" == "x86_64" ]; then
+        export TOOLCHAIN_HOST="x86_64-linux-android"
+        export TOOLCHAIN_COMP="x86_64-linux-android${MIN_SDK_VERSION}"
+        export TOOLCHAIN_ABI="x86_64"
+        export TOOLCHAIN_ARCH="x86_64"
+    fi
+
+    # Since NDK r22 the "platforms" dir got removed
+    if [ -d "${ANDROID_NDK_ROOT}/platforms" ]; then
+        export ANDROID_BUILD_SYSROOT="${ANDROID_NDK_ROOT}/platforms/android-${MIN_SDK_VERSION}/arch-${TOOLCHAIN_ARCH}"
+    else
+        export ANDROID_BUILD_SYSROOT="${ANDROID_BUILD_TOOLCHAIN}/sysroot"
+    fi
+    export ANDROID_BUILD_PREFIX="${ANDROID_BUILD_DIR}/prefix/${TOOLCHAIN_ARCH}"
+
+    # Since NDK r25, libc++_shared.so is no more in 'sources/cxx-stl/...'
+    export ANDROID_STL="libc++_shared.so"
+    if [ -x "${ANDROID_NDK_ROOT}/sources/cxx-stl/llvm-libc++/libs/${TOOLCHAIN_ABI}/${ANDROID_STL}" ] ; then
+        export ANDROID_STL_ROOT="${ANDROID_NDK_ROOT}/sources/cxx-stl/llvm-libc++/libs/${TOOLCHAIN_ABI}"
+    else
+        export ANDROID_STL_ROOT="${ANDROID_BUILD_SYSROOT}/usr/lib/${TOOLCHAIN_HOST}"
+
+        # NDK 25 requires -L<path-to-libc.so> ...
+        # I don't understand why, but without it, ./configure fails to build a valid 'conftest'.
+        export ANDROID_LIBC_ROOT="${ANDROID_BUILD_SYSROOT}/usr/lib/${TOOLCHAIN_HOST}/${MIN_SDK_VERSION}"
+    fi
+}
+
+function android_build_env {
+    ##
+    # Check that necessary environment variables are set
+
+    if [ -z "$ANDROID_NDK_ROOT" ]; then
+        ANDROID_BUILD_FAIL+=("Please set the ANDROID_NDK_ROOT environment variable")
+        ANDROID_BUILD_FAIL+=("  (eg. \"/home/user/android/android-ndk-r25\")")
+    fi
+
+    if [ -z "$ANDROID_BUILD_TOOLCHAIN" ]; then
+        ANDROID_BUILD_FAIL+=("Please set the ANDROID_BUILD_TOOLCHAIN environment variable")
+        ANDROID_BUILD_FAIL+=("  (eg. \"/home/user/android/android-ndk-r25/toolchains/arm-linux-androideabi-4.9/prebuilt/linux-x86_64\")")
+    fi
+
+    if [ -z "$TOOLCHAIN_PATH" ]; then
+        ANDROID_BUILD_FAIL+=("Please set the TOOLCHAIN_PATH environment variable")
+        ANDROID_BUILD_FAIL+=("  (eg. \"/home/user/android/android-ndk-r25/toolchains/arm-linux-androideabi-4.9/prebuilt/linux-x86_64/bin\")")
+    fi
+
+    if [ -z "$TOOLCHAIN_HOST" ]; then
+        ANDROID_BUILD_FAIL+=("Please set the TOOLCHAIN_HOST environment variable")
+        ANDROID_BUILD_FAIL+=("  (eg. \"arm-linux-androideabi\")")
+    fi
+
+    if [ -z "$TOOLCHAIN_COMP" ]; then
+        ANDROID_BUILD_FAIL+=("Please set the TOOLCHAIN_COMP environment variable")
+        ANDROID_BUILD_FAIL+=("  (eg. \"armv7a-linux-androideabi\")")
+    fi
+
+    if [ -z "$TOOLCHAIN_ABI" ]; then
+        ANDROID_BUILD_FAIL+=("Please set the TOOLCHAIN_ABI environment variable")
+        ANDROID_BUILD_FAIL+=("  (eg. \"armeabi-v7a\")")
+    fi
+
+    if [ -z "$TOOLCHAIN_ARCH" ]; then
+        ANDROID_BUILD_FAIL+=("Please set the TOOLCHAIN_ARCH environment variable")
+        ANDROID_BUILD_FAIL+=("  (eg. \"arm\")")
+    fi
+
+    android_build_check_fail
+
+    ##
+    # Check that directories given by environment variables exist
+
+    if [ ! -d "$ANDROID_NDK_ROOT" ]; then
+        ANDROID_BUILD_FAIL+=("The ANDROID_NDK_ROOT directory does not exist")
+        ANDROID_BUILD_FAIL+=("  ${ANDROID_NDK_ROOT}")
+    fi
+
+    if [ ! -d "$ANDROID_STL_ROOT" ]; then
+        ANDROID_BUILD_FAIL+=("The ANDROID_STL_ROOT directory does not exist")
+        ANDROID_BUILD_FAIL+=("  ${ANDROID_STL_ROOT}")
+    fi
+
+    if [ -n "${ANDROID_LIBC_ROOT}" ] && [ ! -d "${ANDROID_LIBC_ROOT}" ]; then
+        ANDROID_BUILD_FAIL+=("The ANDROID_LIBC_ROOT directory does not exist")
+        ANDROID_BUILD_FAIL+=("  ${ANDROID_LIBC_ROOT}")
+    fi
+
+    if [ ! -d "${ANDROID_BUILD_TOOLCHAIN}" ]; then
+        ANDROID_BUILD_FAIL+=("The ANDROID_BUILD_TOOLCHAIN directory does not exist")
+        ANDROID_BUILD_FAIL+=("  ${ANDROID_BUILD_TOOLCHAIN}")
+    fi
+
+    if [ ! -d "$TOOLCHAIN_PATH" ]; then
+        ANDROID_BUILD_FAIL+=("The TOOLCHAIN_PATH directory does not exist")
+        ANDROID_BUILD_FAIL+=("  ${TOOLCHAIN_PATH}")
+    fi
+
+    ##
+    # Set up some local variables and check them
+
+    if [ ! -d "$ANDROID_BUILD_SYSROOT" ]; then
+        ANDROID_BUILD_FAIL+=("The ANDROID_BUILD_SYSROOT directory does not exist")
+        ANDROID_BUILD_FAIL+=("  ${ANDROID_BUILD_SYSROOT}")
+    fi
+
+    mkdir -p "$ANDROID_BUILD_PREFIX" || {
+        ANDROID_BUILD_FAIL+=("Failed to make ANDROID_BUILD_PREFIX directory")
+        ANDROID_BUILD_FAIL+=("  ${ANDROID_BUILD_PREFIX}")
+    }
+
+    android_build_check_fail
+}
+
+function _android_build_opts_process_binaries {
+    export ANDROID_BUILD_CC="${TOOLCHAIN_PATH}/${TOOLCHAIN_COMP}-clang"
+    export ANDROID_BUILD_CXX="${TOOLCHAIN_PATH}/${TOOLCHAIN_COMP}-clang++"
+    # Since NDK r22 the "platforms" dir got removed and the default linker is LLD
+    if [ -d "${ANDROID_NDK_ROOT}/platforms" ]; then
+       export ANDROID_BUILD_LD="${TOOLCHAIN_PATH}/${TOOLCHAIN_HOST}-ld"
+    else
+       export ANDROID_BUILD_LD="${TOOLCHAIN_PATH}/ld"
+    fi
+    # Since NDK r24 this binary was removed due to LLVM being now the default
+    if [ ! -x "${TOOLCHAIN_PATH}/${TOOLCHAIN_HOST}-as" ]; then
+        export ANDROID_BUILD_AS="${TOOLCHAIN_PATH}/llvm-as"
+    else
+        export ANDROID_BUILD_AS="${TOOLCHAIN_PATH}/${TOOLCHAIN_HOST}-as"
+    fi
+    # Since NDK r23 those binaries were removed due to LLVM being now the default
+    if [ ! -x "${TOOLCHAIN_PATH}/${TOOLCHAIN_HOST}-ar" ]; then
+        export ANDROID_BUILD_AR="${TOOLCHAIN_PATH}/llvm-ar"
+        export ANDROID_BUILD_RANLIB="${TOOLCHAIN_PATH}/llvm-ranlib"
+        export ANDROID_BUILD_STRIP="${TOOLCHAIN_PATH}/llvm-strip"
+    else
+        export ANDROID_BUILD_AR="${TOOLCHAIN_PATH}/${TOOLCHAIN_HOST}-ar"
+        export ANDROID_BUILD_RANLIB="${TOOLCHAIN_PATH}/${TOOLCHAIN_HOST}-ranlib"
+        export ANDROID_BUILD_STRIP="${TOOLCHAIN_PATH}/${TOOLCHAIN_HOST}-strip"
+    fi
+
+    if [ ! -x "${ANDROID_BUILD_CC}" ]; then
+        ANDROID_BUILD_FAIL+=("The CC binary does not exist or is not executable")
+        ANDROID_BUILD_FAIL+=("  ${ANDROID_BUILD_CC}")
+    fi
+
+    if [ ! -x "${ANDROID_BUILD_CXX}" ]; then
+        ANDROID_BUILD_FAIL+=("The CXX binary does not exist or is not executable")
+        ANDROID_BUILD_FAIL+=("  ${ANDROID_BUILD_CXX}")
+    fi
+
+    if [ ! -x "${ANDROID_BUILD_LD}" ]; then
+        ANDROID_BUILD_FAIL+=("The LD binary does not exist or is not executable")
+        ANDROID_BUILD_FAIL+=("  ${ANDROID_BUILD_LD}")
+    fi
+
+    if [ ! -x "${ANDROID_BUILD_AS}" ]; then
+        ANDROID_BUILD_FAIL+=("The AS binary does not exist or is not executable")
+        ANDROID_BUILD_FAIL+=("  ${ANDROID_BUILD_AS}")
+    fi
+
+    if [ ! -x "${ANDROID_BUILD_AR}" ]; then
+        ANDROID_BUILD_FAIL+=("The AR binary does not exist or is not executable")
+        ANDROID_BUILD_FAIL+=("  ${ANDROID_BUILD_AR}")
+    fi
+
+    if [ ! -x "${ANDROID_BUILD_RANLIB}" ]; then
+        ANDROID_BUILD_FAIL+=("The RANLIB binary does not exist or is not executable")
+        ANDROID_BUILD_FAIL+=("  ${ANDROID_BUILD_RANLIB}")
+    fi
+
+    if [ ! -x "${ANDROID_BUILD_STRIP}" ]; then
+        ANDROID_BUILD_FAIL+=("The STRIP binary does not exist or is not executable")
+        ANDROID_BUILD_FAIL+=("  ${ANDROID_BUILD_STRIP}")
+    fi
+
+    ANDROID_BUILD_OPTS+=("TOOLCHAIN=${ANDROID_BUILD_TOOLCHAIN}")
+    ANDROID_BUILD_OPTS+=("CC=${ANDROID_BUILD_CC}")
+    ANDROID_BUILD_OPTS+=("CXX=${ANDROID_BUILD_CXX}")
+    ANDROID_BUILD_OPTS+=("LD=${ANDROID_BUILD_LD}")
+    ANDROID_BUILD_OPTS+=("AS=${ANDROID_BUILD_AS}")
+    ANDROID_BUILD_OPTS+=("AR=${ANDROID_BUILD_AR}")
+    ANDROID_BUILD_OPTS+=("RANLIB=${ANDROID_BUILD_RANLIB}")
+    ANDROID_BUILD_OPTS+=("STRIP=${ANDROID_BUILD_STRIP}")
+
+    android_build_check_fail
+}
+
+# Set the ANDROID_BUILD_OPTS variable to a bash array of configure options
+function android_build_opts {
+    ANDROID_BUILD_OPTS=()
+
+    _android_build_opts_process_binaries
+
+    if [ ${NDK_NUMBER} -ge 2700 ] ; then
+        # Since NDK r27 symbols like '__aeabi_xxx' are no more exported in the dynamic lib.
+        export ANDROID_BUILD_LIBS="-lc -ldl -lm -llog -static-libstdc++"
+    elif [ ${NDK_NUMBER} -ge 2300 ] ; then
+        # Since NDK r23 we don't need -lgcc due to LLVM being now the default.
+        export ANDROID_BUILD_LIBS="-lc -ldl -lm -llog -lc++_shared"
+    else
+        export ANDROID_BUILD_LIBS="-lc -lgcc -ldl -lm -llog -lc++_shared"
+    fi
+
+    export ANDROID_BUILD_LDFLAGS="-L${ANDROID_BUILD_PREFIX}/lib"
+    if [ -n "${ANDROID_LIBC_ROOT}" ] ; then
+        ANDROID_BUILD_LDFLAGS+=" -L${ANDROID_LIBC_ROOT}"
+    fi
+    ANDROID_BUILD_LDFLAGS+=" -L${ANDROID_STL_ROOT}"
+
+    export ANDROID_BUILD_CFLAGS+=" -D_GNU_SOURCE -D_REENTRANT -D_THREAD_SAFE"
+    export ANDROID_BUILD_CPPFLAGS+=" -I${ANDROID_BUILD_PREFIX}/include"
+
+    if [ "${NDK_NUMBER}" -ge 2400 ] ; then
+        if [ "${BUILD_ARCH}" = "arm64" ] ; then
+            export ANDROID_BUILD_CXXFLAGS+=" -mno-outline-atomics"
+        fi
+    fi
+
+    ANDROID_BUILD_OPTS+=("CFLAGS=${ANDROID_BUILD_CFLAGS} ${ANDROID_BUILD_EXTRA_CFLAGS}")
+    ANDROID_BUILD_OPTS+=("CPPFLAGS=${ANDROID_BUILD_CPPFLAGS} ${ANDROID_BUILD_EXTRA_CPPFLAGS}")
+    ANDROID_BUILD_OPTS+=("CXXFLAGS=${ANDROID_BUILD_CXXFLAGS} ${ANDROID_BUILD_EXTRA_CXXFLAGS}")
+    ANDROID_BUILD_OPTS+=("LDFLAGS=${ANDROID_BUILD_LDFLAGS} ${ANDROID_BUILD_EXTRA_LDFLAGS}")
+    ANDROID_BUILD_OPTS+=("LIBS=${ANDROID_BUILD_LIBS} ${ANDROID_BUILD_EXTRA_LIBS}")
+
+    ANDROID_BUILD_OPTS+=("PKG_CONFIG_LIBDIR=${ANDROID_NDK_ROOT}/prebuilt/${ANDROID_BUILD_PLATFORM}/lib/pkgconfig")
+    ANDROID_BUILD_OPTS+=("PKG_CONFIG_PATH=${ANDROID_BUILD_PREFIX}/lib/pkgconfig")
+    ANDROID_BUILD_OPTS+=("PKG_CONFIG_SYSROOT_DIR=${ANDROID_BUILD_SYSROOT}")
+    ANDROID_BUILD_OPTS+=("PKG_CONFIG_DIR=")
+    ANDROID_BUILD_OPTS+=("--with-sysroot=${ANDROID_BUILD_SYSROOT}")
+    ANDROID_BUILD_OPTS+=("--host=${TOOLCHAIN_HOST}")
+    ANDROID_BUILD_OPTS+=("--prefix=${ANDROID_BUILD_PREFIX}")
+
+    android_build_check_fail
+}
+
+# Parse readelf output to verify the correct linking of libraries.
+#   The first argument should be the soname of the newly built library.
+#   The rest of the arguments should be the sonames of dependencies.
+#   All sonames should be unversioned for android (no trailing numbers).
+function android_build_verify_so {
+    local soname="$1"
+    shift # Get rid of first argument - the rest represent dependencies
+
+    local sofile="${ANDROID_BUILD_PREFIX}/lib/${soname}"
+    if [ ! -f "${sofile}" ]; then
+        ANDROID_BUILD_FAIL+=("Found no library named ${soname}")
+        ANDROID_BUILD_FAIL+=("  ${sofile}")
+    fi
+    android_build_check_fail
+
+    local readelf="${TOOLCHAIN_PATH}/${TOOLCHAIN_HOST}-readelf"
+    if command -v "${readelf}" >/dev/null 2>&1 ; then
+        export ANDROID_BUILD_READELF="${readelf}"
+    elif command -v readelf >/dev/null 2>&1 ; then
+        export ANDROID_BUILD_READELF="readelf"
+    elif command -v greadelf >/dev/null 2>&1 ; then
+        export ANDROID_BUILD_READELF="greadelf"
+    else
+        ANDROID_BUILD_FAIL+=("Could not find any of readelf, greadelf, or ${readelf}")
+    fi
+    android_build_check_fail
+
+    local elfoutput
+    elfoutput=$(LC_ALL=C ${ANDROID_BUILD_READELF} -d "${sofile}")
+
+    local soname_regexp='soname: \[([[:alnum:]\.]+)\]'
+    if [[ $elfoutput =~ $soname_regexp ]]; then
+        local parsed_soname="${BASH_REMATCH[1]}"
+        if [ "${parsed_soname}" != "${soname}" ]; then
+            ANDROID_BUILD_FAIL+=("Actual soname of library ${soname} is incorrect (or versioned):")
+            ANDROID_BUILD_FAIL+=("  ${parsed_soname}")
+        fi
+    else
+        ANDROID_BUILD_FAIL+=("Failed to meaningfully parse readelf output for library ${soname}:")
+        ANDROID_BUILD_FAIL+=("  ${elfoutput}")
+    fi
+
+    for dep_soname in "$@" ; do
+        local dep_sofile="${ANDROID_BUILD_PREFIX}/lib/${dep_soname}"
+        if [ ! -f "${dep_sofile}" ]; then
+            ANDROID_BUILD_FAIL+=("Found no library named ${dep_soname}")
+            ANDROID_BUILD_FAIL+=("  ${dep_sofile}")
+        elif [[ $elfoutput != *"library: [${dep_soname}]"* ]]; then
+            ANDROID_BUILD_FAIL+=("Library ${soname} was expected to be linked to library with soname:")
+            ANDROID_BUILD_FAIL+=("  ${dep_soname}")
+        fi
+    done
+
+    android_build_check_fail
+}
+
+function android_show_configure_opts {
+    local tag=$1
+    shift
+    android_build_trace "./configure options to build '${tag}':"
+    for opt in "$@"; do
+        echo "  > ${opt}"
+    done
+    echo ""
+}
+
+# Initialize env variable XXX_ROOT, given dependency name "xxx".
+# If XXX_ROOT is not set:
+#    If ${PROJECT_ROOT}/../xxx exists
+#        set XXX_ROOT with it.
+#    Else
+#        set XXX_ROOT with ${ANDROID_DEPENDENCIES_DIR}/xxx.
+# Else
+#    Verify that folder XXX_ROOT exists.
+function android_init_dependency_root {
+    local lib_name
+    lib_name="$1"
+    local variable_name
+    variable_name="$(echo "${lib_name}" | tr '[:lower:]' '[:upper:]')_ROOT"
+    local variable_value
+    variable_value="$(eval echo "\${${variable_name}}")"
+
+    if [ -z "${PROJECT_ROOT}" ] ; then
+        android_build_trace "Error: Variable PROJECT_ROOT is not set."
+        exit 1
+    fi
+    if [ ! -d "${PROJECT_ROOT}" ] ; then
+        android_build_trace "Error: Cannot find folder '${PROJECT_ROOT}'."
+        exit 1
+    fi
+
+    if [ -z "${variable_value}" ] ; then
+        if [ -d "${PROJECT_ROOT}/../${lib_name}" ] ; then
+            eval "export ${variable_name}=\"$(cd "${PROJECT_ROOT}/../${lib_name}" && pwd)\""
+        else
+            eval "export ${variable_name}=\"${ANDROID_DEPENDENCIES_DIR}/${lib_name}\""
+        fi
+        variable_value="$(eval echo "\${${variable_name}}")"
+    elif [ ! -d "${variable_value}" ] ; then
+        android_build_trace "Error: Folder '${variable_value}' does not exist."
+        exit 1
+    fi
+
+    android_build_trace "${variable_name}=${variable_value}"
+}
+
+function android_download_library {
+    local tag="$1" ; shift
+    local root="$1" ; shift
+    local url="$1" ; shift
+    local parent="$(dirname "${root}")"
+    local archive="$(basename "${url}")"
+
+    mkdir -p "${parent}"
+    cd "${parent}"
+
+    android_build_trace "Downloading ${tag} from '${url}' ..."
+    rm -f "${archive}"
+    wget -q "${url}"
+    case "${archive}" in
+        *."tar.gz" ) folder="$(basename "${archive}" ".tar.gz")" ;;
+        *."tgz" )    folder="$(basename "${archive}" ".tgz")" ;;
+        * ) android_build_trace "Unsupported extension for '${archive}'." ; exit 1 ;;
+    esac
+    android_build_trace "Extracting '${archive}' ..."
+    tar -xzf "${archive}"
+    if [ ! -d "${root}" ] ; then
+	mv "${folder}" "${root}"
+    fi
+    android_build_trace "${tag} extracted under under '${root}'."
+}
+
+function android_clone_library {
+    local tag="$1" ; shift
+    local root="$1" ; shift
+    local url="$1" ; shift
+    local branch="$1" ; shift
+
+    mkdir -p "$(dirname "${root}")"
+    if [ -n "${branch}" ] ; then
+        android_build_trace "Cloning '${url}' (branch '${branch}') under '${root}'."
+        git clone --quiet --depth 1 -b "${branch}" "${url}" "${root}"
+    else
+        android_build_trace "Cloning '${url}' (default branch) under '${root}'."
+        git clone --quiet --depth 1 "${url}" "${root}"
+    fi
+    ( cd "${root}" && git log --oneline -n 1)  || exit 1
+}
+
+# Caller must set CONFIG_OPTS[], before call.
+function android_build_library {
+    local tag=$1 ; shift
+    local root=$1 ; shift
+
+    android_build_trace "Cleaning library '${tag}'."
+    (
+        if [ -n "${ANDROID_BUILD_PREFIX}" ] && [ -d "${ANDROID_BUILD_PREFIX}" ] ; then
+            # Remove *.la files as they might cause errors with cross compiled libraries
+            find "${ANDROID_BUILD_PREFIX}" -name '*.la' -exec rm {} +
+        fi
+
+        cd "${root}" \
+        && ( make clean || : ) \
+        && rm -f config.status
+    ) &> /dev/null
+
+    android_build_trace "Building library '${tag}'."
+    (
+        set -e
+
+        android_show_configure_opts "${tag}" "${CONFIG_OPTS[@]}"
+
+        cd "${root}"
+        if [ -e autogen.sh ]; then
+            ./autogen.sh 2> /dev/null
+        fi
+        if [ -e buildconf ]; then
+            ./buildconf 2> /dev/null
+        fi
+        if [ ! -e autogen.sh ] && [ ! -e buildconf ] && [ ! -e ./configure ] && [ -s ./configure.ac ] ; then
+            libtoolize --copy --force && \
+            aclocal -I . && \
+            autoheader && \
+            automake --add-missing --copy && \
+            autoconf || \
+            autoreconf -fiv
+        fi
+
+        ./configure "${CONFIG_OPTS[@]}"
+        make -j 4
+        make install
+    )
+}
+
+########################################################################
+# Initialization
+########################################################################
+# Get directory of current script (if not already set)
+# This directory is also the basis for the build directories the get created.
+if [ -z "$ANDROID_BUILD_DIR" ]; then
+    export ANDROID_BUILD_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
+fi
+
+# Where to download our dependencies
+export ANDROID_DEPENDENCIES_DIR="${ANDROID_DEPENDENCIES_DIR:-/tmp/tmp-deps}"
+
+# Set up a variable to hold the global failure reasons, separated by newlines
+# (Empty string indicates no failure)
+ANDROID_BUILD_FAIL=()
+
+########################################################################
+# Sanity checks
+########################################################################
+case "${NDK_VERSION}" in
+    "android-ndk-r"[0-9][0-9] ) : ;;
+    "android-ndk-r"[0-9][0-9][a-z] ) : ;;
+    "" ) android_build_trace "Variable NDK_VERSION not set." ; exit 1 ;;
+    * ) android_build_trace "Invalid format for NDK_VERSION ('${NDK_VERSION}')" ; exit 1 ;;
+esac
+
+if [ -z "${ANDROID_NDK_ROOT}" ] ; then
+    android_build_trace "ANDROID_NDK_ROOT not set !"
+    exit 1
+fi
+
+########################################################################
+# Compute NDK version into a numeric form:
+#   android-ndk-r21e -> 2105
+#   android-ndk-r25  -> 2500
+########################################################################
+export NDK_NUMBER="$(( $(echo "${NDK_VERSION}"|sed -e 's|android-ndk-r||g' -e 's|[a-z]||g') * 100 ))"
+NDK_VERSION_LETTER="$(echo "${NDK_VERSION}"|sed -e 's|android-ndk-r[0-9][0-9]||g'|tr '[:lower:]' '[:upper:]')"
+if [ -n "${NDK_VERSION_LETTER}" ] ; then
+    NDK_NUMBER=$(( $(( NDK_NUMBER + $(printf '%d' \'"${NDK_VERSION_LETTER}") )) - 64 ))
+fi
+android_build_trace "Configured NDK_VERSION: ${NDK_VERSION} ($NDK_NUMBER)."
+

builds/android/build.sh

@@ -0,0 +1,154 @@
+#!/usr/bin/env bash
+#
+#   Exit if any step fails
+set -e
+
+# Use directory of current script as the working directory
+cd "$( dirname "${BASH_SOURCE[0]}" )"
+PROJECT_ROOT="$(cd ../.. && pwd)"
+
+########################################################################
+# Configuration & tuning options.
+########################################################################
+# Set default values used in ci builds
+export NDK_VERSION="${NDK_VERSION:-android-ndk-r25}"
+
+# Set default path to find Android NDK.
+# Must be of the form <path>/${NDK_VERSION} !!
+export ANDROID_NDK_ROOT="${ANDROID_NDK_ROOT:-/tmp/${NDK_VERSION}}"
+
+# With NDK r22b, the minimum SDK version range is [16, 31].
+# Since NDK r24, the minimum SDK version range is [19, 31].
+# SDK version 21 is the minimum version for 64-bit builds.
+export MIN_SDK_VERSION=${MIN_SDK_VERSION:-21}
+
+# Use directory of current script as the build directory
+# ${ANDROID_BUILD_DIR}/prefix/<build_arch>/lib will contain produced libraries
+export ANDROID_BUILD_DIR="${ANDROID_BUILD_DIR:-${PWD}}"
+
+# Where to download our dependencies: default to /tmp/tmp-deps
+export ANDROID_DEPENDENCIES_DIR="${ANDROID_DEPENDENCIES_DIR:-/tmp/tmp-deps}"
+
+# Clean before processing
+export ANDROID_BUILD_CLEAN="${ANDROID_BUILD_CLEAN:-no}"
+
+# Set this to 'no', to enable verbose ./configure
+export CI_CONFIG_QUIET="${CI_CONFIG_QUIET:-no}"
+
+# Select CURVE implementation:
+# - ""               # Do not use any CURVE implementation.
+# - "libsodium"      # Use LIBSODIUM implementation.
+export CURVE="${CURVE:-}"
+
+# By default, dependencies will be cloned to /tmp/tmp-deps.
+# If you have your own source tree for LIBSODIUM, uncomment
+# the line below, and provide its absolute path:
+#    export LIBSODIUM_ROOT="<absolute_path_to_LIBSODIUM_source_tree>"
+
+########################################################################
+# Utilities
+########################################################################
+# Get access to android_build functions and variables
+# Perform some sanity checks and calculate some variables.
+source "${PROJECT_ROOT}/builds/android/android_build_helper.sh"
+
+function usage {
+    echo "LIBZMQ - Usage:"
+    echo "  export XXX=xxx"
+    echo "  ./build.sh [ arm | arm64 | x86 | x86_64 ]"
+    echo ""
+    echo "See this file (configuration & tuning options) for details"
+    echo "on variables XXX and their values xxx"
+    exit 1
+}
+
+########################################################################
+# Sanity checks
+########################################################################
+BUILD_ARCH="$1"
+[ -z "${BUILD_ARCH}" ] && usage
+
+# Set ROOT path for LIBSODIUM source tree, if CURVE is "libsodium"
+if [ "${CURVE}x" = "libsodiumx" ] ; then
+    # Check or initialize LIBSODIUM_ROOT
+    android_init_dependency_root "libsodium"
+fi
+
+########################################################################
+# Compilation
+########################################################################
+# Choose a C++ standard library implementation from the ndk
+export ANDROID_BUILD_CXXSTL="gnustl_shared_49"
+
+# Additional flags for LIBTOOL, for LIBZMQ and other dependencies.
+export LIBTOOL_EXTRA_LDFLAGS='-avoid-version'
+
+# Set up android build environment and set ANDROID_BUILD_OPTS array
+android_build_set_env "${BUILD_ARCH}"
+android_download_ndk
+android_build_env
+android_build_opts
+
+# Check for environment variable to clear the prefix and do a clean build
+if [ "${ANDROID_BUILD_CLEAN}" = "yes" ]; then
+    android_build_trace "Doing a clean build (removing previous build and dependencies)..."
+    rm -rf "${ANDROID_BUILD_PREFIX:?}"/*
+
+    # Called shells MUST not clean after ourselves !
+    export ANDROID_BUILD_CLEAN="no"
+fi
+
+DEPENDENCIES=()
+if [ -z "${CURVE}" ]; then
+    CURVE="--disable-curve"
+elif [ "${CURVE}" == "libsodium" ]; then
+    CURVE="--with-libsodium=yes"
+    DEPENDENCIES+=("libsodium.so")
+    ##
+    # Build LIBSODIUM from latest STABLE branch
+
+    (android_build_verify_so "libsodium.so" &> /dev/null) || {
+        if [ ! -d "${LIBSODIUM_ROOT}" ] ; then
+            android_clone_library "LIBSODIUM" "${LIBSODIUM_ROOT}" "https://github.com/jedisct1/libsodium.git" "stable"
+        fi
+
+        (
+            CONFIG_OPTS=()
+            [ "${CI_CONFIG_QUIET}" = "yes" ] && CONFIG_OPTS+=("--quiet")
+            CONFIG_OPTS+=("${ANDROID_BUILD_OPTS[@]}")
+            CONFIG_OPTS+=("--without-docs")
+            CONFIG_OPTS+=("--disable-soname-versions")
+
+            android_build_library "LIBSODIUM" "${LIBSODIUM_ROOT}"
+        ) || exit 1
+    }
+fi
+
+##
+# Build libzmq from local source
+
+(android_build_verify_so "libzmq.so" "${DEPENDENCIES[@]}" &> /dev/null) || {
+    (
+        CONFIG_OPTS=()
+        [ "${CI_CONFIG_QUIET}" = "yes" ] && CONFIG_OPTS+=("--quiet")
+        CONFIG_OPTS+=("${ANDROID_BUILD_OPTS[@]}")
+        CONFIG_OPTS+=("${CURVE}")
+        CONFIG_OPTS+=("--without-docs")
+
+        android_build_library "LIBZMQ" "${PROJECT_ROOT}"
+    ) || exit 1
+}
+
+##
+# Fetch the STL as well.
+
+cp "${ANDROID_STL_ROOT}/${ANDROID_STL}" "${ANDROID_BUILD_PREFIX}/lib/."
+
+##
+# Verify shared libraries in prefix
+for library in "libzmq.so" "${DEPENDENCIES[@]}" ; do
+    android_build_verify_so "${library}"
+done
+
+android_build_verify_so "libzmq.so" "${DEPENDENCIES[@]}" "${ANDROID_STL}"
+android_build_trace "Android build successful"

builds/android/ci_build.sh

@@ -0,0 +1,31 @@
+#!/usr/bin/env bash
+#
+#   Exit if any step fails
+set -e
+
+# Use directory of current script as the working directory
+cd "$( dirname "${BASH_SOURCE[0]}" )"
+
+# Configuration
+export NDK_VERSION="${NDK_VERSION:-android-ndk-r25}"
+export ANDROID_NDK_ROOT="${ANDROID_NDK_ROOT:-/tmp/${NDK_VERSION}}"
+export MIN_SDK_VERSION=${MIN_SDK_VERSION:-21}
+export ANDROID_BUILD_DIR="${ANDROID_BUILD_DIR:-${PWD}/.build}"
+export ANDROID_BUILD_CLEAN="${ANDROID_BUILD_CLEAN:-yes}"
+export ANDROID_DEPENDENCIES_DIR="${ANDROID_DEPENDENCIES_DIR:-${PWD}/.deps}"
+
+# Cleanup.
+if [ "${ANDROID_BUILD_CLEAN}" = "yes" ] ; then
+    rm -rf   "${ANDROID_BUILD_DIR}/prefix"
+    mkdir -p "${ANDROID_BUILD_DIR}/prefix"
+    rm -rf   "${ANDROID_DEPENDENCIES_DIR}"
+    mkdir -p "${ANDROID_DEPENDENCIES_DIR}"
+
+    # Called shells MUST not clean after ourselves !
+    export ANDROID_BUILD_CLEAN="no"
+fi
+
+./build.sh "arm"
+./build.sh "arm64"
+./build.sh "x86"
+./build.sh "x86_64"

builds/cmake/Modules/ClangFormat.cmake

@@ -0,0 +1,41 @@
+# additional target to perform clang-format run, requires clang-format
+
+# get all project files
+file(GLOB_RECURSE ALL_SOURCE_FILES 
+     RELATIVE ${CMAKE_CURRENT_BINARY_DIR} 
+     ${CMAKE_SOURCE_DIR}/src/*.cpp ${CMAKE_SOURCE_DIR}/src/*.h ${CMAKE_SOURCE_DIR}/src/*.hpp 
+     ${CMAKE_SOURCE_DIR}/tests/*.cpp ${CMAKE_SOURCE_DIR}/tests/*.h ${CMAKE_SOURCE_DIR}/tests/*.hpp 
+     ${CMAKE_SOURCE_DIR}/perf/*.cpp ${CMAKE_SOURCE_DIR}/perf/*.h ${CMAKE_SOURCE_DIR}/perf/*.hpp 
+     ${CMAKE_SOURCE_DIR}/tools/*.cpp ${CMAKE_SOURCE_DIR}/tools/*.h ${CMAKE_SOURCE_DIR}/tools/*.hpp 
+     ${CMAKE_SOURCE_DIR}/include/*.h
+    )
+
+if("${CLANG_FORMAT}" STREQUAL "")
+  set(CLANG_FORMAT "clang-format")
+endif()
+
+add_custom_target(
+        clang-format
+        COMMAND ${CLANG_FORMAT} -style=file -i ${ALL_SOURCE_FILES}
+)
+
+function(JOIN VALUES GLUE OUTPUT)
+  string (REPLACE ";" "${GLUE}" _TMP_STR "${VALUES}")
+  set (${OUTPUT} "${_TMP_STR}" PARENT_SCOPE)
+endfunction()
+
+configure_file(builds/cmake/clang-format-check.sh.in clang-format-check.sh @ONLY)
+
+add_custom_target(
+        clang-format-check
+        COMMAND chmod +x clang-format-check.sh
+        COMMAND ./clang-format-check.sh
+        COMMENT "Checking correct formatting according to .clang-format file using ${CLANG_FORMAT}"
+)
+
+add_custom_target(
+        clang-format-diff
+        COMMAND ${CLANG_FORMAT} -style=file -i ${ALL_SOURCE_FILES}
+        COMMAND git diff ${ALL_SOURCE_FILES}
+        COMMENT "Formatting with clang-format (using ${CLANG_FORMAT}) and showing differences with latest commit"
+)

builds/cmake/Modules/FindAsciiDoc.cmake

@@ -1,27 +0,0 @@
-# - Find Asciidoc
-# this module looks for asciidoc and a2x
-#
-# ASCIIDOC_EXECUTABLE - the full path to asciidoc
-# ASCIIDOC_FOUND - If false, don't attempt to use asciidoc.
-# A2X_EXECUTABLE - the full path to a2x
-# A2X_FOUND - If false, don't attempt to use a2x.
-
-# CMP0053: Unable to refer to $ENV{PROGRAMFILES(X86)}
-set(PROGRAMFILESX86 "PROGRAMFILES(X86)")
-
-find_program(ASCIIDOC_EXECUTABLE asciidoc asciidoc.py
-             PATHS "$ENV{ASCIIDOC_ROOT}"
-                   "$ENV{PROGRAMW6432}/asciidoc"
-                   "$ENV{PROGRAMFILES}/asciidoc"
-                   "$ENV{${PROGRAMFILESX86}}/asciidoc")
-
-find_program(A2X_EXECUTABLE a2x
-             PATHS "$ENV{ASCIIDOC_ROOT}"
-                   "$ENV{PROGRAMW6432}/asciidoc"
-                   "$ENV{PROGRAMFILES}/asciidoc"
-                   "$ENV{${PROGRAMFILESX86}}/asciidoc")
-
-
-include(FindPackageHandleStandardArgs)
-find_package_handle_standard_ARGS(AsciiDoc REQUIRED_VARS ASCIIDOC_EXECUTABLE)
-mark_as_advanced(ASCIIDOC_EXECUTABLE A2X_EXECUTABLE)

builds/cmake/Modules/FindAsciiDoctor.cmake

@@ -0,0 +1,23 @@
+# - Find Asciidoctor
+# this module looks for asciidoctor
+#
+# ASCIIDOCTOR_EXECUTABLE - the full path to asciidoc
+# ASCIIDOCTOR_FOUND - If false, don't attempt to use asciidoc.
+set (PROGRAMFILESX86 "PROGRAMFILES(X86)")
+
+find_program(ASCIIDOCTOR_EXECUTABLE asciidoctor asciidoctor
+             PATHS "$ENV{ASCIIDOCTOR_ROOT}"
+                   "$ENV{PROGRAMW6432}/asciidoctor"
+                   "$ENV{PROGRAMFILES}/asciidoctor"
+                   "$ENV{${PROGRAMFILESX86}}/asciidoctor")
+
+find_program(A2X_EXECUTABLE a2x
+             PATHS "$ENV{ASCIIDOCTOR_ROOT}"
+                   "$ENV{PROGRAMW6432}/asciidoctor"
+                   "$ENV{PROGRAMFILES}/asciidoctor"
+                   "$ENV{${PROGRAMFILESX86}}/asciidoctor")
+
+
+include(FindPackageHandleStandardArgs)
+find_package_handle_standard_ARGS(AsciiDoctor REQUIRED_VARS ASCIIDOCTOR_EXECUTABLE)
+mark_as_advanced(ASCIIDOCTOR_EXECUTABLE)

builds/cmake/Modules/FindNSS3.cmake

@@ -0,0 +1,8 @@
+include(FindPackageHandleStandardArgs)
+
+if (NOT MSVC)
+    find_package(PkgConfig REQUIRED)
+    pkg_check_modules(NSS3 "nss>=3.19")
+    find_package_handle_standard_args(NSS3 DEFAULT_MSG NSS3_LIBRARIES NSS3_CFLAGS)
+endif()
+

builds/cmake/Modules/Findgssapi_krb5.cmake

@@ -0,0 +1,45 @@
+if (NOT MSVC)
+find_package(PkgConfig REQUIRED) 
+pkg_check_modules(PC_GSSAPI_KRB5 "libgssapi_krb5")
+if (PC_GSSAPI_KRB5_FOUND)
+  set(pkg_config_names_private "${pkg_config_names_private} libgssapi_krb5")
+endif()
+if (NOT PC_GSSAPI_KRB5_FOUND)
+    pkg_check_modules(PC_GSSAPI_KRB5 "gssapi_krb5")
+    if (PC_GSSAPI_KRB5_FOUND)
+      set(pkg_config_names_private "${pkg_config_names_private} gssapi_krb5")
+    endif()
+endif (NOT PC_GSSAPI_KRB5_FOUND)
+if (PC_GSSAPI_KRB5_FOUND)
+  set(GSSAPI_KRB5_INCLUDE_HINTS ${PC_GSSAPI_KRB5_INCLUDE_DIRS} ${PC_GSSAPI_KRB5_INCLUDE_DIRS}/*)
+  set(GSSAPI_KRB5_LIBRARY_HINTS ${PC_GSSAPI_KRB5_LIBRARY_DIRS} ${PC_GSSAPI_KRB5_LIBRARY_DIRS}/*)
+else()
+  set(pkg_config_libs_private "${pkg_config_libs_private} -lgssapi_krb5")
+endif()
+endif (NOT MSVC)
+
+# some libraries install the headers is a subdirectory of the include dir
+# returned by pkg-config, so use a wildcard match to improve chances of finding
+# headers and libraries.
+find_path(
+    GSSAPI_KRB5_INCLUDE_DIRS
+    NAMES gssapi/gssapi_krb5.h
+    HINTS ${GSSAPI_KRB5_INCLUDE_HINTS}
+)
+
+set (GSSAPI_NAMES libgssapi_krb5 gssapi_krb5)
+if (${CMAKE_SIZEOF_VOID_P} STREQUAL 8)
+  set (GSSAPI_NAMES ${GSSAPI_NAMES} gssapi64)
+elseif (${CMAKE_SIZEOF_VOID_P} STREQUAL 4)
+  set (GSSAPI_NAMES ${GSSAPI_NAMES} gssapi32)
+endif()
+
+find_library(
+    GSSAPI_KRB5_LIBRARIES
+    NAMES ${GSSAPI_NAMES}
+    HINTS ${GSSAPI_KRB5_LIBRARY_HINTS}
+)
+
+include(FindPackageHandleStandardArgs)
+find_package_handle_standard_args(gssapi_krb5 DEFAULT_MSG GSSAPI_KRB5_LIBRARIES GSSAPI_KRB5_INCLUDE_DIRS)
+mark_as_advanced(GSSAPI_KRB5_FOUND GSSAPI_KRB5_LIBRARIES GSSAPI_KRB5_INCLUDE_DIRS)

builds/cmake/Modules/Findsodium.cmake

@@ -0,0 +1,48 @@
+################################################################################
+#  THIS FILE IS 100% GENERATED BY ZPROJECT; DO NOT EDIT EXCEPT EXPERIMENTALLY  #
+#  Please refer to the README for information about making permanent changes.  #
+################################################################################
+
+if (NOT MSVC)
+find_package(PkgConfig REQUIRED) 
+pkg_check_modules(PC_SODIUM "libsodium")
+if (PC_SODIUM_FOUND)
+  set(pkg_config_names_private "${pkg_config_names_private} libsodium")
+endif()
+if (NOT PC_SODIUM_FOUND)
+    pkg_check_modules(PC_SODIUM "sodium")
+    if (PC_SODIUM_FOUND)
+      set(pkg_config_names_private "${pkg_config_names_private} sodium")
+    endif()
+endif (NOT PC_SODIUM_FOUND)
+if (PC_SODIUM_FOUND)
+  set(SODIUM_INCLUDE_HINTS ${PC_SODIUM_INCLUDE_DIRS} ${PC_SODIUM_INCLUDE_DIRS}/*)
+  set(SODIUM_LIBRARY_HINTS ${PC_SODIUM_LIBRARY_DIRS} ${PC_SODIUM_LIBRARY_DIRS}/*)
+else()
+  set(pkg_config_libs_private "${pkg_config_libs_private} -lsodium")
+endif()
+endif (NOT MSVC)
+
+# some libraries install the headers is a subdirectory of the include dir
+# returned by pkg-config, so use a wildcard match to improve chances of finding
+# headers and libraries.
+find_path(
+    SODIUM_INCLUDE_DIRS
+    NAMES sodium.h
+    HINTS ${SODIUM_INCLUDE_HINTS}
+)
+
+find_library(
+    SODIUM_LIBRARIES
+    NAMES libsodium sodium
+    HINTS ${SODIUM_LIBRARY_HINTS}
+)
+
+include(FindPackageHandleStandardArgs)
+find_package_handle_standard_args(sodium DEFAULT_MSG SODIUM_LIBRARIES SODIUM_INCLUDE_DIRS)
+mark_as_advanced(SODIUM_FOUND SODIUM_LIBRARIES SODIUM_INCLUDE_DIRS)
+
+################################################################################
+#  THIS FILE IS 100% GENERATED BY ZPROJECT; DO NOT EDIT EXCEPT EXPERIMENTALLY  #
+#  Please refer to the README for information about making permanent changes.  #
+################################################################################

builds/cmake/Modules/TestZMQVersion.cmake

@@ -6,4 +6,3 @@ string(REGEX REPLACE ".*#define ZMQ_VERSION_PATCH ([0-9]+).*" "\\1" ZMQ_VERSION_
 set(ZMQ_VERSION "${ZMQ_VERSION_MAJOR}.${ZMQ_VERSION_MINOR}.${ZMQ_VERSION_PATCH}")
 
 message(STATUS "Detected ZMQ Version - ${ZMQ_VERSION}")
-

builds/cmake/Modules/ZMQSourceRunChecks.cmake

@@ -16,6 +16,57 @@ int main(int argc, char *argv [])
     ZMQ_HAVE_SOCK_CLOEXEC)
 endmacro()
 
+macro(zmq_check_efd_cloexec)
+  message(STATUS "Checking whether EFD_CLOEXEC is supported")
+  check_c_source_runs(
+    "
+#include <sys/eventfd.h>
+
+int main(int argc, char *argv [])
+{
+    int s = eventfd (0, EFD_CLOEXEC);
+    return(s == -1);
+}
+"
+    ZMQ_HAVE_EVENTFD_CLOEXEC)
+endmacro()
+
+macro(zmq_check_o_cloexec)
+  message(STATUS "Checking whether O_CLOEXEC is supported")
+  check_c_source_runs(
+    "
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+
+int main(int argc, char *argv [])
+{
+    int s = open (\"/dev/null\", O_CLOEXEC | O_RDONLY);
+    return s == -1;
+}
+"
+    ZMQ_HAVE_O_CLOEXEC)
+endmacro()
+
+macro(zmq_check_so_bindtodevice)
+  message(STATUS "Checking whether SO_BINDTODEVICE is supported")
+  check_c_source_runs(
+"
+#include <sys/socket.h>
+
+int main(int argc, char *argv [])
+{
+/* Actually making the setsockopt() call requires CAP_NET_RAW */
+#ifndef SO_BINDTODEVICE
+    return 1;
+#else
+    return 0;
+#endif
+}
+"
+    ZMQ_HAVE_SO_BINDTODEVICE)
+endmacro()
+
 # TCP keep-alives Checks.
 
 macro(zmq_check_so_keepalive)
@@ -127,3 +178,156 @@ int main(int argc, char *argv [])
 "
     ZMQ_HAVE_TCP_KEEPALIVE)
 endmacro()
+
+
+macro(zmq_check_tcp_tipc)
+  message(STATUS "Checking whether TIPC is supported")
+  check_c_source_runs(
+    "
+#include <stdlib.h>
+#include <string.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <sys/socket.h>
+#include <linux/tipc.h>
+
+int main(int argc, char *argv [])
+{
+    struct sockaddr_tipc topsrv;
+    int sd = socket(PF_TIPC, SOCK_SEQPACKET, 0);
+    memset(&topsrv, 0, sizeof(topsrv));
+    topsrv.family = AF_TIPC;
+    topsrv.addrtype = TIPC_ADDR_NAME;
+    topsrv.addr.name.name.type = TIPC_TOP_SRV;
+    topsrv.addr.name.name.instance = TIPC_TOP_SRV;
+    fcntl(sd, F_SETFL, O_NONBLOCK);
+    tipc_addr(0, 0, 0);
+}
+"
+    ZMQ_HAVE_TIPC)
+endmacro()
+
+
+macro(zmq_check_pthread_setname)
+  message(STATUS "Checking pthread_setname signature")
+  set(SAVE_CMAKE_REQUIRED_FLAGS ${CMAKE_REQUIRED_FLAGS})
+  set(CMAKE_REQUIRED_FLAGS "-D_GNU_SOURCE -Werror -pthread")
+  check_c_source_compiles(
+    "
+#include <pthread.h>
+
+int main(int argc, char *argv [])
+{
+    pthread_setname_np (\"foo\");
+    return 0;
+}
+"
+    ZMQ_HAVE_PTHREAD_SETNAME_1)
+  check_c_source_compiles(
+    "
+#include <pthread.h>
+
+int main(int argc, char *argv [])
+{
+    pthread_setname_np (pthread_self(), \"foo\");
+    return 0;
+}
+"
+    ZMQ_HAVE_PTHREAD_SETNAME_2)
+  check_c_source_compiles(
+    "
+#include <pthread.h>
+
+int main(int argc, char *argv [])
+{
+    pthread_setname_np (pthread_self(), \"foo\", (void *)0);
+    return 0;
+}
+"
+    ZMQ_HAVE_PTHREAD_SETNAME_3)
+  check_c_source_compiles(
+    "
+#include <pthread.h>
+
+int main(int argc, char *argv [])
+{
+    pthread_set_name_np (pthread_self(), \"foo\");
+    return 0;
+}
+"
+    ZMQ_HAVE_PTHREAD_SET_NAME)
+  set(CMAKE_REQUIRED_FLAGS ${SAVE_CMAKE_REQUIRED_FLAGS})
+endmacro()
+
+macro(zmq_check_pthread_setaffinity)
+  message(STATUS "Checking pthread_setaffinity signature")
+  set(SAVE_CMAKE_REQUIRED_FLAGS ${CMAKE_REQUIRED_FLAGS})
+  set(CMAKE_REQUIRED_FLAGS "-D_GNU_SOURCE -Werror -pthread")
+  check_c_source_compiles(
+    "
+#include <pthread.h>
+
+int main(int argc, char *argv [])
+{
+    cpu_set_t test; 
+    pthread_setaffinity_np (pthread_self(), sizeof(cpu_set_t), &test);
+    return 0;
+}
+"
+    ZMQ_HAVE_PTHREAD_SET_AFFINITY)
+  set(CMAKE_REQUIRED_FLAGS ${SAVE_CMAKE_REQUIRED_FLAGS})
+endmacro()
+
+
+macro(zmq_check_getrandom)
+  message(STATUS "Checking whether getrandom is supported")
+  check_c_source_runs(
+    "
+#include <sys/random.h>
+
+int main (int argc, char *argv [])
+{
+    char buf[4];
+    int rc = getrandom(buf, 4, 0);
+    return rc == -1 ? 1 : 0;
+}
+"
+    ZMQ_HAVE_GETRANDOM)
+endmacro()
+
+macro(zmq_check_noexcept)
+  message(STATUS "Checking whether noexcept is supported")
+  check_cxx_source_compiles(
+"
+struct X 
+{
+    X(int i) noexcept {}
+};
+
+int main(int argc, char *argv [])
+{
+    X x(5);
+    return 0;
+}
+"
+    ZMQ_HAVE_NOEXCEPT)
+endmacro()
+
+macro(zmq_check_so_priority)
+  message(STATUS "Checking whether SO_PRIORITY is supported")
+  check_c_source_runs(
+    "
+#include <sys/types.h>
+#include <sys/socket.h>
+
+int main (int argc, char *argv [])
+{
+    int s, rc, opt = 1;
+    return (
+        ((s = socket (PF_INET, SOCK_STREAM, 0)) == -1) ||
+        ((rc = setsockopt (s, SOL_SOCKET, SO_PRIORITY, (char*) &opt, sizeof (int))) == -1)
+    );
+}
+"
+    ZMQ_HAVE_SO_PRIORITY)
+endmacro()

builds/cmake/Modules/ZMQSupportMacros.cmake

@@ -0,0 +1,5 @@
+macro (zmq_set_with_default var value)
+  if (NOT ${var})
+    set(${var} "${value}")
+  endif ()
+endmacro ()

builds/cmake/NSIS.template32.in

@@ -120,7 +120,7 @@ Var AR_RegFlags
  "exit_${SecName}:"
 !macroend
  
-!macro RemoveSection SecName
+!macro RemoveSection_CPack SecName
   ;  This macro is used to call section's Remove_... macro
   ;from the uninstaller.
   ;Input: section index constant name specified in Section command.
@@ -843,7 +843,7 @@ Section "Uninstall"
   DeleteRegKey SHCTX "Software\@CPACK_PACKAGE_VENDOR@\@CPACK_PACKAGE_INSTALL_REGISTRY_KEY@"
 
   ; Removes all optional components
-  !insertmacro SectionList "RemoveSection"
+  !insertmacro SectionList "RemoveSection_CPack"
   
   !insertmacro MUI_STARTMENU_GETFOLDER Application $MUI_TEMP
     
@@ -851,7 +851,7 @@ Section "Uninstall"
 @CPACK_NSIS_DELETE_ICONS@
 @CPACK_NSIS_DELETE_ICONS_EXTRA@
   
-  ;Delete empty start menu parent diretories
+  ;Delete empty start menu parent directories
   StrCpy $MUI_TEMP "$SMPROGRAMS\$MUI_TEMP"
  
   startMenuDeleteLoop:
@@ -870,7 +870,7 @@ Section "Uninstall"
   Delete "$SMPROGRAMS\$MUI_TEMP\Uninstall.lnk"
 @CPACK_NSIS_DELETE_ICONS_EXTRA@
   
-  ;Delete empty start menu parent diretories
+  ;Delete empty start menu parent directories
   StrCpy $MUI_TEMP "$SMPROGRAMS\$MUI_TEMP"
  
   secondStartMenuDeleteLoop:

builds/cmake/NSIS.template64.in

@@ -120,7 +120,7 @@ Var AR_RegFlags
  "exit_${SecName}:"
 !macroend
  
-!macro RemoveSection SecName
+!macro RemoveSection_CPack SecName
   ;  This macro is used to call section's Remove_... macro
   ;from the uninstaller.
   ;Input: section index constant name specified in Section command.
@@ -846,7 +846,7 @@ Section "Uninstall"
   DeleteRegKey SHCTX "Software\@CPACK_PACKAGE_VENDOR@\@CPACK_PACKAGE_INSTALL_REGISTRY_KEY@"
 
   ; Removes all optional components
-  !insertmacro SectionList "RemoveSection"
+  !insertmacro SectionList "RemoveSection_CPack"
   
   !insertmacro MUI_STARTMENU_GETFOLDER Application $MUI_TEMP
     
@@ -854,7 +854,7 @@ Section "Uninstall"
 @CPACK_NSIS_DELETE_ICONS@
 @CPACK_NSIS_DELETE_ICONS_EXTRA@
   
-  ;Delete empty start menu parent diretories
+  ;Delete empty start menu parent directories
   StrCpy $MUI_TEMP "$SMPROGRAMS\$MUI_TEMP"
  
   startMenuDeleteLoop:
@@ -873,7 +873,7 @@ Section "Uninstall"
   Delete "$SMPROGRAMS\$MUI_TEMP\Uninstall.lnk"
 @CPACK_NSIS_DELETE_ICONS_EXTRA@
   
-  ;Delete empty start menu parent diretories
+  ;Delete empty start menu parent directories
   StrCpy $MUI_TEMP "$SMPROGRAMS\$MUI_TEMP"
  
   secondStartMenuDeleteLoop:

builds/cmake/ZeroMQConfig.cmake.in

@@ -0,0 +1,34 @@
+# ZeroMQ cmake module
+#
+# The following import targets are created
+#
+# ::
+#
+#   libzmq-static
+#   libzmq
+#
+# This module sets the following variables in your project::
+#
+#   ZeroMQ_FOUND - true if ZeroMQ found on the system
+#   ZeroMQ_INCLUDE_DIR - the directory containing ZeroMQ headers
+#   ZeroMQ_LIBRARY - 
+#   ZeroMQ_STATIC_LIBRARY
+
+@PACKAGE_INIT@
+
+if(NOT TARGET libzmq AND NOT TARGET libzmq-static)
+  include("${CMAKE_CURRENT_LIST_DIR}/@PROJECT_NAME@Targets.cmake")
+
+  if (TARGET libzmq)
+    get_target_property(@PROJECT_NAME@_INCLUDE_DIR libzmq INTERFACE_INCLUDE_DIRECTORIES)
+  else ()
+    get_target_property(@PROJECT_NAME@_INCLUDE_DIR libzmq-static INTERFACE_INCLUDE_DIRECTORIES)
+  endif()
+
+  if (TARGET libzmq)
+    get_target_property(@PROJECT_NAME@_LIBRARY libzmq LOCATION)
+  endif()
+  if (TARGET libzmq-static)
+    get_target_property(@PROJECT_NAME@_STATIC_LIBRARY libzmq-static LOCATION)
+  endif()
+endif()

builds/cmake/ci_build.sh

@@ -0,0 +1,126 @@
+#!/usr/bin/env bash
+
+set -x -e
+
+cd ../..
+
+# always install custom builds from dist
+# to make sure that `make dist` doesn't omit any files required to build & test
+if [ -z "$DO_CLANG_FORMAT_CHECK" -a -z "$CLANG_TIDY" ]; then
+    ./autogen.sh
+    ./configure
+    make -j5 dist-gzip
+    V=$(./version.sh)
+    tar -xzf zeromq-$V.tar.gz
+    cd zeromq-$V
+fi
+
+mkdir tmp || true
+BUILD_PREFIX=$PWD/tmp
+
+CONFIG_OPTS=()
+CONFIG_OPTS+=("CFLAGS=-I${BUILD_PREFIX}/include")
+CONFIG_OPTS+=("CPPFLAGS=-I${BUILD_PREFIX}/include")
+CONFIG_OPTS+=("CXXFLAGS=-I${BUILD_PREFIX}/include")
+CONFIG_OPTS+=("LDFLAGS=-L${BUILD_PREFIX}/lib")
+CONFIG_OPTS+=("PKG_CONFIG_PATH=${BUILD_PREFIX}/lib/pkgconfig")
+
+CMAKE_OPTS=()
+CMAKE_OPTS+=("-DCMAKE_INSTALL_PREFIX:PATH=${BUILD_PREFIX}")
+CMAKE_OPTS+=("-DCMAKE_PREFIX_PATH:PATH=${BUILD_PREFIX}")
+CMAKE_OPTS+=("-DCMAKE_LIBRARY_PATH:PATH=${BUILD_PREFIX}/lib")
+CMAKE_OPTS+=("-DCMAKE_INCLUDE_PATH:PATH=${BUILD_PREFIX}/include")
+CMAKE_OPTS+=("-DENABLE_CAPSH=ON")
+CMAKE_OPTS+=("-DBUILD_TESTS=ON")
+
+if [ "$CLANG_FORMAT" != "" ] ; then
+    CMAKE_OPTS+=("-DCLANG_FORMAT=${CLANG_FORMAT}")
+fi
+
+if [ -z $CURVE ]; then
+    CMAKE_OPTS+=("-DENABLE_CURVE=OFF")
+elif [ $CURVE == "libsodium" ]; then
+    CMAKE_OPTS+=("-DWITH_LIBSODIUM=ON")
+
+    if ! ((command -v dpkg-query >/dev/null 2>&1 && dpkg-query --list libsodium-dev >/dev/null 2>&1) || \
+            (command -v brew >/dev/null 2>&1 && brew ls --versions libsodium >/dev/null 2>&1)); then
+        git clone --depth 1 -b stable https://github.com/jedisct1/libsodium.git
+        ( cd libsodium; ./autogen.sh; ./configure --prefix=$BUILD_PREFIX; make install)
+    fi
+fi
+
+if [ "$GSSAPI" == "enabled" ]; then
+    CMAKE_OPTS+=("-DWITH_GSSAPI_KRB5=ON")
+fi
+
+CMAKE_PREFIXES=()
+MAKE_PREFIXES=()
+PARALLEL_MAKE_OPT="-j5"
+if [ -n "$CLANG_TIDY" ] ; then
+    # To allow sonar to process history information, unshallow clone first.
+    git fetch --unshallow
+    curl -L https://sonarcloud.io/static/cpp/build-wrapper-linux-x86.zip -o build-wrapper-linux-x86.zip
+    unzip build-wrapper-linux-x86.zip
+    export SONARCLOUD_BUILD_WRAPPER_PATH="${PWD}/build-wrapper-linux-x86/"
+    curl -L https://binaries.sonarsource.com/Distribution/sonar-scanner-cli/sonar-scanner-cli-4.2.0.1873-linux.zip -o sonar-scanner-cli.zip
+    unzip sonar-scanner-cli.zip
+    export SONAR_SCANNER_CLI_PATH="${PWD}/sonar-scanner-4.2.0.1873-linux/bin/"
+
+    CMAKE_OPTS+=("-DCMAKE_BUILD_TYPE=Debug") # do a debug build to avoid unused variable warnings with assertions, and to speed up build
+    CMAKE_OPTS+=("-DCMAKE_CXX_CLANG_TIDY:STRING=${CLANG_TIDY}")
+    if [ -n ${SONARCLOUD_BUILD_WRAPPER_PATH} ] ; then
+        MAKE_PREFIXES+=("${SONARCLOUD_BUILD_WRAPPER_PATH}build-wrapper-linux-x86-64")
+        MAKE_PREFIXES+=("--out-dir")
+        MAKE_PREFIXES+=("${TRAVIS_BUILD_DIR}/bw-output")
+        
+    fi
+    CMAKE_PREFIXES+=("scan-build-10")
+    MAKE_PREFIXES+=("scan-build-10")
+    MAKE_PREFIXES+=("-plist-html")
+    SCAN_BUILD_OUTPUT="$(pwd)/scan-build-report"
+    MAKE_PREFIXES+=("-o ${SCAN_BUILD_OUTPUT}")
+    # TODO this does not work with sonarcloud.io as it misses the sonar-cxx plugin
+    #MAKE_PREFIXES+=("-plist")
+    IFS="/" read -ra GITHUB_USER <<< "${TRAVIS_REPO_SLUG}"
+    PARALLEL_MAKE_OPT=""
+fi
+
+# Build, check, and install from local source
+mkdir build_cmake
+cd build_cmake
+if [ "$DO_CLANG_FORMAT_CHECK" = "1" ] ; then
+    if ! ( PKG_CONFIG_PATH=${BUILD_PREFIX}/lib/pkgconfig cmake "${CMAKE_OPTS[@]}" .. && make clang-format-check) ; then
+        echo "clang-format version is: $(clang-format --version)"
+        make clang-format-diff
+        exit 1
+    fi
+else
+    if [ -n "$CLANG_TIDY" ] ; then
+        ${CLANG_TIDY} -explain-config
+    fi
+
+    export CTEST_OUTPUT_ON_FAILURE=1
+    PKG_CONFIG_PATH=${BUILD_PREFIX}/lib/pkgconfig ${CMAKE_PREFIXES[@]} cmake "${CMAKE_OPTS[@]}" ..
+    ${MAKE_PREFIXES[@]} make ${PARALLEL_MAKE_OPT} all VERBOSE=1 | tee clang-tidy-report
+    
+    if [ -n "${SONAR_SCANNER_CLI_PATH}" ] ; then
+        find ${SCAN_BUILD_OUTPUT} || echo "WARNING: ${SCAN_BUILD_OUTPUT} does not exist"
+    
+        ${SONAR_SCANNER_CLI_PATH}sonar-scanner \
+            -Dsonar.projectKey=${GITHUB_USER}-libzmq \
+            -Dsonar.organization=${GITHUB_USER}-github \
+            -Dsonar.projectBaseDir=.. \
+            -Dsonar.sources=${TRAVIS_BUILD_DIR}/include,${TRAVIS_BUILD_DIR}/src,${TRAVIS_BUILD_DIR}/tests,${TRAVIS_BUILD_DIR}/unittests \
+            -Dsonar.cfamily.build-wrapper-output=${TRAVIS_BUILD_DIR}/bw-output \
+            -Dsonar.host.url=https://sonarcloud.io \
+            -Dsonar.login=${SONARQUBE_TOKEN}
+
+            # TODO this does not work with sonarcloud.io as it misses the sonar-cxx plugin
+            # -Dsonar.cxx.clangtidy.reportPath=clang-tidy-report \
+            # -Dsonar.cxx.clangsa.reportPath=*.plist \
+            
+    fi
+
+    make install
+    make ${PARALLEL_MAKE_OPT} test ARGS="-V"
+fi

builds/cmake/clang-format-check.sh.in

@@ -0,0 +1,14 @@
+#!/bin/sh
+FAILED=0
+IFS=";"
+FILES="@ALL_SOURCE_FILES@"
+IDS=$(echo -en "\n\b")
+for FILE in $FILES
+do
+	@CLANG_FORMAT@ -style=file -output-replacements-xml "$FILE" | grep "<replacement " >/dev/null &&
+    {
+      echo "$FILE is not correctly formatted"
+	  FAILED=1
+	}
+done
+if [ "$FAILED" -eq "1" ] ; then exit 1 ; fi

builds/cmake/platform.hpp.in

@@ -1,42 +1,92 @@
 #ifndef __ZMQ_PLATFORM_HPP_INCLUDED__
 #define __ZMQ_PLATFORM_HPP_INCLUDED__
 
-#cmakedefine ZMQ_USE_KQUEUE
-#cmakedefine ZMQ_USE_EPOLL
-#cmakedefine ZMQ_USE_DEVPOLL
-#cmakedefine ZMQ_USE_POLL
-#cmakedefine ZMQ_USE_SELECT
+#cmakedefine ZMQ_USE_CV_IMPL_STL11
+#cmakedefine ZMQ_USE_CV_IMPL_WIN32API
+#cmakedefine ZMQ_USE_CV_IMPL_PTHREADS
+#cmakedefine ZMQ_USE_CV_IMPL_NONE
+
+#cmakedefine ZMQ_IOTHREAD_POLLER_USE_KQUEUE
+#cmakedefine ZMQ_IOTHREAD_POLLER_USE_EPOLL
+#cmakedefine ZMQ_IOTHREAD_POLLER_USE_EPOLL_CLOEXEC
+#cmakedefine ZMQ_IOTHREAD_POLLER_USE_DEVPOLL
+#cmakedefine ZMQ_IOTHREAD_POLLER_USE_POLLSET
+#cmakedefine ZMQ_IOTHREAD_POLLER_USE_POLL
+#cmakedefine ZMQ_IOTHREAD_POLLER_USE_SELECT
+#cmakedefine ZMQ_HAVE_PPOLL
+
+#cmakedefine ZMQ_POLL_BASED_ON_SELECT
+#cmakedefine ZMQ_POLL_BASED_ON_POLL
+
+#cmakedefine HAVE_POSIX_MEMALIGN @HAVE_POSIX_MEMALIGN@
+#cmakedefine ZMQ_CACHELINE_SIZE @ZMQ_CACHELINE_SIZE@
 
 #cmakedefine ZMQ_FORCE_MUTEXES
 
-
 #cmakedefine HAVE_FORK
 #cmakedefine HAVE_CLOCK_GETTIME
 #cmakedefine HAVE_GETHRTIME
+#cmakedefine HAVE_MKDTEMP
 #cmakedefine ZMQ_HAVE_UIO
 
+#cmakedefine ZMQ_HAVE_NOEXCEPT
+
 #cmakedefine ZMQ_HAVE_EVENTFD
+#cmakedefine ZMQ_HAVE_EVENTFD_CLOEXEC
 #cmakedefine ZMQ_HAVE_IFADDRS
+#cmakedefine ZMQ_HAVE_SO_BINDTODEVICE
 
 #cmakedefine ZMQ_HAVE_SO_PEERCRED
 #cmakedefine ZMQ_HAVE_LOCAL_PEERCRED
+#cmakedefine ZMQ_HAVE_BUSY_POLL
+
+#cmakedefine ZMQ_HAVE_O_CLOEXEC
 
 #cmakedefine ZMQ_HAVE_SOCK_CLOEXEC
 #cmakedefine ZMQ_HAVE_SO_KEEPALIVE
+#cmakedefine ZMQ_HAVE_SO_PRIORITY
 #cmakedefine ZMQ_HAVE_TCP_KEEPCNT
 #cmakedefine ZMQ_HAVE_TCP_KEEPIDLE
 #cmakedefine ZMQ_HAVE_TCP_KEEPINTVL
 #cmakedefine ZMQ_HAVE_TCP_KEEPALIVE
+#cmakedefine ZMQ_HAVE_PTHREAD_SETNAME_1
+#cmakedefine ZMQ_HAVE_PTHREAD_SETNAME_2
+#cmakedefine ZMQ_HAVE_PTHREAD_SETNAME_3
+#cmakedefine ZMQ_HAVE_PTHREAD_SET_NAME
+#cmakedefine ZMQ_HAVE_PTHREAD_SET_AFFINITY
+#cmakedefine HAVE_ACCEPT4
+#cmakedefine HAVE_STRNLEN
+#cmakedefine ZMQ_HAVE_STRLCPY
+#cmakedefine ZMQ_HAVE_LIBBSD
+
+#cmakedefine ZMQ_HAVE_IPC
+#cmakedefine ZMQ_HAVE_STRUCT_SOCKADDR_UN
+
+#cmakedefine ZMQ_USE_BUILTIN_SHA1
+#cmakedefine ZMQ_USE_NSS
+#cmakedefine ZMQ_HAVE_WS
+#cmakedefine ZMQ_HAVE_WSS
+#cmakedefine ZMQ_HAVE_TIPC
 
 #cmakedefine ZMQ_HAVE_OPENPGM
+#cmakedefine ZMQ_HAVE_NORM
+#cmakedefine ZMQ_HAVE_VMCI
+
 #cmakedefine ZMQ_MAKE_VALGRIND_HAPPY
 
+#cmakedefine ZMQ_HAVE_CURVE
+#cmakedefine ZMQ_USE_LIBSODIUM
+#cmakedefine SODIUM_STATIC
+#cmakedefine HAVE_LIBGSSAPI_KRB5
+#cmakedefine ZMQ_USE_GNUTLS
+#cmakedefine ZMQ_USE_RADIX_TREE
+#cmakedefine HAVE_IF_NAMETOINDEX
 
 #ifdef _AIX
   #define ZMQ_HAVE_AIX
 #endif
 
-#if defined ANDROID
+#if defined __ANDROID__
   #define ZMQ_HAVE_ANDROID
 #endif
 
@@ -48,10 +98,15 @@
   #define ZMQ_HAVE_MINGW32
 #endif
 
-#if defined(__FreeBSD__) || defined(__DragonFly__) || defined(__FreeBSD_kernel__)
+#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
   #define ZMQ_HAVE_FREEBSD
 #endif
 
+#if defined(__DragonFly__)
+  #define ZMQ_HAVE_FREEBSD
+  #define ZMQ_HAVE_DRAGONFLY
+#endif
+
 #if defined __hpux
   #define ZMQ_HAVE_HPUX
 #endif
@@ -68,8 +123,10 @@
   #define ZMQ_HAVE_OPENBSD
 #endif
 
+// TODO better move OS-specific defines to the automake files, and check for availability of IPC with an explicit test there
 #if defined __VMS
   #define ZMQ_HAVE_OPENVMS
+  #undef ZMQ_HAVE_IPC
 #endif
 
 #if defined __APPLE__
@@ -85,6 +142,6 @@
 #endif
 
 #cmakedefine ZMQ_HAVE_WINDOWS
-
+#cmakedefine ZMQ_HAVE_WINDOWS_UWP
 
 #endif

builds/coverage/ci_build.sh

@@ -0,0 +1,14 @@
+#!/usr/bin/env bash
+
+set -x
+
+mkdir tmp
+BUILD_PREFIX=$PWD/tmp
+
+source ../../config.sh
+set_config_opts
+
+CONFIG_OPTS+=("--enable-code-coverage")
+
+# Build, check, and install from local source
+( cd ../..; ./autogen.sh && ./configure "${CONFIG_OPTS[@]}" && make VERBOSE=1 -j5 check-code-coverage CODE_COVERAGE_OUTPUT_FILE=lcov.info CODE_COVERAGE_OUTPUT_DIRECTORY=coverage) || exit 1

builds/cygwin/Makefile.cygwin

@@ -0,0 +1,48 @@
+CC=gcc
+CFLAGS=-Wall -Os -g -DDLL_EXPORT -DFD_SETSIZE=16384 -DZMQ_USE_SELECT -I.
+LIBS=-lws2_32
+
+OBJS = ctx.o reaper.o dist.o err.o \
+	clock.o metadata.o random.o \
+	object.o own.o \
+	io_object.o io_thread.o \
+	lb.o fq.o \
+	address.o tcp_address.o ipc_address.o \
+	ipc_connecter.o ipc_listener.o \
+	tcp_connecter.o tcp_listener.o \
+	mailbox.o msg.o mtrie.o \
+	pipe.o precompiled.o proxy.o \
+	signaler.o stream_engine.o \
+	thread.o trie.o \
+	ip.o tcp.o \
+	pgm_socket.o pgm_receiver.o pgm_sender.o \
+	raw_decoder.o raw_encoder.o \
+	v1_decoder.o v1_encoder.o v2_decoder.o v2_encoder.o \
+        udp_address.o upd_engine.o radio.o dish.o \
+	socket_base.o session_base.o options.o \
+	req.o rep.o push.o pull.o pub.o sub.o pair.o \
+	dealer.o router.o xpub.o xsub.o stream.o \
+	poller_base.o select.o poll.o epoll.o kqueue.o devpoll.o \
+	curve_client.o curve_server.o \
+	mechanism.o null_mechanism.o plain_client.o plain_server.o \
+	zmq.o zmq_utils.o
+
+%.o: ../../src/%.cpp
+	$(CC) -c -o $@ $< $(CFLAGS)
+
+%.o: ../../perf/%.cpp
+	$(CC) -c -o $@ $< $(CFLAGS)
+
+all: libzmq.dll
+
+perf: inproc_lat.exe inproc_thr.exe local_lat.exe local_thr.exe remote_lat.exe remote_thr.exe
+
+libzmq.dll: $(OBJS)
+	g++ -shared -o $@ $^ -Wl,--out-implib,-Wl,--export-all-symbols -Wl,--enable-auto-import -Wl,--whole-archive $@.a -Wl,--no-whole-archive $(LIBS)
+
+%.exe: %.o libzmq.dll
+	g++ -o $@ $^
+
+clean:
+	del *.o *.a *.dll *.exe
+	

builds/deprecated-msvc/.gitignore

@@ -0,0 +1,256 @@
+## Visual Studio 2015 experimental Visual C/C++ Intellisense database
+*.VC.db
+
+
+## From https://github.com/github/gitignore
+##
+## Ignore Visual Studio temporary files, build results, and
+## files generated by popular Visual Studio add-ons.
+
+# User-specific files
+*.suo
+*.user
+*.userosscache
+*.sln.docstates
+
+# User-specific files (MonoDevelop/Xamarin Studio)
+*.userprefs
+
+# Build results
+[Dd]ebug/
+[Dd]ebugPublic/
+[Rr]elease/
+[Rr]eleases/
+x64/
+x86/
+bld/
+[Bb]in/
+[Oo]bj/
+[Ll]og/
+
+# Visual Studio 2015 cache/options directory
+.vs/
+# Uncomment if you have tasks that create the project's static files in wwwroot
+#wwwroot/
+
+# MSTest test Results
+[Tt]est[Rr]esult*/
+[Bb]uild[Ll]og.*
+
+# NUNIT
+*.VisualState.xml
+TestResult.xml
+
+# Build Results of an ATL Project
+[Dd]ebugPS/
+[Rr]eleasePS/
+dlldata.c
+
+# DNX
+project.lock.json
+artifacts/
+
+*_i.c
+*_p.c
+*_i.h
+*.ilk
+*.meta
+*.obj
+*.pch
+*.pdb
+*.pgc
+*.pgd
+*.rsp
+*.sbr
+*.tlb
+*.tli
+*.tlh
+*.tmp
+*.tmp_proj
+*.log
+*.vspscc
+*.vssscc
+.builds
+*.pidb
+*.svclog
+*.scc
+
+# Chutzpah Test files
+_Chutzpah*
+
+# Visual C++ cache files
+ipch/
+*.aps
+*.ncb
+*.opendb
+*.opensdf
+*.sdf
+*.cachefile
+
+# Visual Studio profiler
+*.psess
+*.vsp
+*.vspx
+*.sap
+
+# TFS 2012 Local Workspace
+$tf/
+
+# Guidance Automation Toolkit
+*.gpState
+
+# ReSharper is a .NET coding add-in
+_ReSharper*/
+*.[Rr]e[Ss]harper
+*.DotSettings.user
+
+# JustCode is a .NET coding add-in
+.JustCode
+
+# TeamCity is a build add-in
+_TeamCity*
+
+# DotCover is a Code Coverage Tool
+*.dotCover
+
+# NCrunch
+_NCrunch_*
+.*crunch*.local.xml
+nCrunchTemp_*
+
+# MightyMoose
+*.mm.*
+AutoTest.Net/
+
+# Web workbench (sass)
+.sass-cache/
+
+# Installshield output folder
+[Ee]xpress/
+
+# DocProject is a documentation generator add-in
+DocProject/buildhelp/
+DocProject/Help/*.HxT
+DocProject/Help/*.HxC
+DocProject/Help/*.hhc
+DocProject/Help/*.hhk
+DocProject/Help/*.hhp
+DocProject/Help/Html2
+DocProject/Help/html
+
+# Click-Once directory
+publish/
+
+# Publish Web Output
+*.[Pp]ublish.xml
+*.azurePubxml
+# TODO: Comment the next line if you want to checkin your web deploy settings
+# but database connection strings (with potential passwords) will be unencrypted
+*.pubxml
+*.publishproj
+
+# Microsoft Azure Web App publish settings. Comment the next line if you want to
+# checkin your Azure Web App publish settings, but sensitive information contained
+# in these scripts will be unencrypted
+PublishScripts/
+
+# NuGet Packages
+*.nupkg
+# The packages folder can be ignored because of Package Restore
+**/packages/*
+# except build/, which is used as an MSBuild target.
+!**/packages/build/
+# Uncomment if necessary however generally it will be regenerated when needed
+#!**/packages/repositories.config
+# NuGet v3's project.json files produces more ignoreable files
+*.nuget.props
+*.nuget.targets
+
+# Microsoft Azure Build Output
+csx/
+*.build.csdef
+
+# Microsoft Azure Emulator
+ecf/
+rcf/
+
+# Windows Store app package directories and files
+AppPackages/
+BundleArtifacts/
+Package.StoreAssociation.xml
+_pkginfo.txt
+
+# Visual Studio cache files
+# files ending in .cache can be ignored
+*.[Cc]ache
+# but keep track of directories ending in .cache
+!*.[Cc]ache/
+
+# Others
+ClientBin/
+~$*
+*~
+*.dbmdl
+*.dbproj.schemaview
+*.pfx
+*.publishsettings
+node_modules/
+orleans.codegen.cs
+
+# Since there are multiple workflows, uncomment next line to ignore bower_components
+# (https://github.com/github/gitignore/pull/1529#issuecomment-104372622)
+#bower_components/
+
+# RIA/Silverlight projects
+Generated_Code/
+
+# Backup & report files from converting an old project file
+# to a newer Visual Studio version. Backup files are not needed,
+# because we have git ;-)
+_UpgradeReport_Files/
+Backup*/
+UpgradeLog*.XML
+UpgradeLog*.htm
+
+# SQL Server files
+*.mdf
+*.ldf
+
+# Business Intelligence projects
+*.rdl.data
+*.bim.layout
+*.bim_*.settings
+
+# Microsoft Fakes
+FakesAssemblies/
+
+# GhostDoc plugin setting file
+*.GhostDoc.xml
+
+# Node.js Tools for Visual Studio
+.ntvs_analysis.dat
+
+# Visual Studio 6 build log
+*.plg
+
+# Visual Studio 6 workspace options file
+*.opt
+
+# Visual Studio LightSwitch build output
+**/*.HTMLClient/GeneratedArtifacts
+**/*.DesktopClient/GeneratedArtifacts
+**/*.DesktopClient/ModelManifest.xml
+**/*.Server/GeneratedArtifacts
+**/*.Server/ModelManifest.xml
+_Pvt_Extensions
+
+# Paket dependency manager
+.paket/paket.exe
+paket-files/
+
+# FAKE - F# Make
+.fake/
+
+# JetBrains Rider
+.idea/
+*.sln.iml

builds/deprecated-msvc/Makefile.am

@@ -0,0 +1,94 @@
+LIBZMQ_DIST = vs2008/libzmq.sln \
+              vs2008/libzmq/libzmq.vcproj \
+              vs2010/libzmq.sln \
+              vs2010/libzmq/libzmq.vcxproj \
+              vs2010/libzmq/libzmq.vcxproj.filters \
+              vs2012/libzmq.sln \
+              vs2012/libzmq/libzmq.vcxproj \
+              vs2012/libzmq/libzmq.vcxproj.filters \
+              vs2013/libzmq.sln \
+              vs2013/libzmq/libzmq.vcxproj \
+              vs2013/libzmq/libzmq.vcxproj.filters \
+              vs2015/libzmq.sln \
+              vs2015/libzmq/libzmq.vcxproj \
+              vs2015/libzmq/libzmq.vcxproj.filters \
+              vs2015/libzmq/libzmq.props \
+              vs2015/libzmq/libzmq.xml \
+              vs2015/libzmq.import.props \
+              vs2015/libzmq.import.xml \
+              errno.cpp \
+              errno.hpp \
+              platform.hpp \
+              resource.h \
+              resource.rc
+
+PERF_DIST = vs2008/local_lat/local_lat.vcproj \
+            vs2008/local_thr/local_thr.vcproj \
+            vs2008/remote_lat/remote_lat.vcproj \
+            vs2008/remote_thr/remote_thr.vcproj \
+            vs2008/inproc_lat/inproc_lat.vcproj \
+            vs2008/inproc_thr/inproc_thr.vcproj \
+            vs2010/local_lat/local_lat.vcxproj \
+            vs2010/local_thr/local_thr.vcxproj \
+            vs2010/remote_lat/remote_lat.vcxproj \
+            vs2010/remote_thr/remote_thr.vcxproj \
+            vs2010/inproc_lat/inproc_lat.vcxproj \
+            vs2010/inproc_thr/inproc_thr.vcxproj \
+            vs2012/local_lat/local_lat.vcxproj \
+            vs2012/local_thr/local_thr.vcxproj \
+            vs2012/remote_lat/remote_lat.vcxproj \
+            vs2012/remote_thr/remote_thr.vcxproj \
+            vs2012/inproc_lat/inproc_lat.vcxproj \
+            vs2012/inproc_thr/inproc_thr.vcxproj \
+            vs2013/local_lat/local_lat.vcxproj \
+            vs2013/local_thr/local_thr.vcxproj \
+            vs2013/remote_lat/remote_lat.vcxproj \
+            vs2013/remote_thr/remote_thr.vcxproj \
+            vs2013/inproc_lat/inproc_lat.vcxproj \
+            vs2013/inproc_thr/inproc_thr.vcxproj \
+            vs2015/local_lat/local_lat.vcxproj \
+            vs2015/local_lat/local_lat.props \
+            vs2015/local_thr/local_thr.vcxproj \
+            vs2015/local_thr/local_thr.props \
+            vs2015/remote_lat/remote_lat.vcxproj \
+            vs2015/remote_lat/remote_lat.props \
+            vs2015/remote_thr/remote_thr.vcxproj \
+            vs2015/remote_thr/remote_thr.props \
+            vs2015/inproc_lat/inproc_lat.vcxproj \
+            vs2015/inproc_lat/inproc_lat.props \
+            vs2015/inproc_thr/inproc_thr.vcxproj \
+            vs2015/inproc_thr/inproc_thr.props
+
+PROPERTIES_DIST = properties/Common.props \
+                  properties/Debug.props \
+                  properties/DebugDEXE.props \
+                  properties/DebugDLL.props \
+                  properties/DebugLEXE.props \
+                  properties/DebugLIB.props \
+                  properties/DebugLTCG.props \
+                  properties/DebugSEXE.props \
+                  properties/DLL.props \
+                  properties/EXE.props \
+                  properties/LIB.props \
+                  properties/Link.props \
+                  properties/LTCG.props \
+                  properties/Messages.props \
+                  properties/Output.props \
+                  properties/Release.props \
+                  properties/ReleaseDEXE.props \
+                  properties/ReleaseDLL.props \
+                  properties/ReleaseLEXE.props \
+                  properties/ReleaseLIB.props \
+                  properties/ReleaseLTCG.props \
+                  properties/ReleaseSEXE.props \
+                  properties/Win32.props \
+                  properties/x64.props
+
+PRECOMPILED_DIST = ../../src/precompiled.hpp \
+                   ../../src/precompiled.cpp
+
+BUILD_DIST = build/build.bat \
+             build/buildall.bat \
+             build/buildbase.bat
+
+EXTRA_DIST = $(LIBZMQ_DIST) $(PERF_DIST) $(PROPERTIES_DIST) $(PRECOMPILED_DIST) $(BUILD_DIST)

builds/deprecated-msvc/build/build.bat

@@ -0,0 +1,33 @@
+@ECHO OFF
+:: Usage: build.bat [Clean]
+@setlocal
+
+:: validate environment
+if "%VSINSTALLDIR%" == "" @echo Error: Attempt to build without proper DevStudio environment.&@goto :done
+
+:: record starting time
+set STARTTIME=%DATE% %TIME%
+@echo Start Time: %STARTTIME%
+
+
+:: validate optional argument (and make sure it is spelled "Clean")
+set MAKECLEAN=%%1
+if NOT "%%1" == "" if /I "%%1" == "clean" set MAKECLEAN=Clean
+
+
+::
+:: uses the environment from the DevStudio CMD window to figure out which version to build
+::
+
+set VSVER=%VSINSTALLDIR:~-5,2%
+set DIRVER=%VSVER%
+if %VSVER% gtr 10 set /a DIRVER = DIRVER + 1
+
+CALL buildbase.bat ..\vs20%DIRVER%\libzmq.sln %VSVER% %MAKECLEAN%
+
+set STOPTIME=%DATE% %TIME%
+@echo Stop  Time: %STOPTIME%
+@echo Start Time: %STARTTIME%
+
+:done
+@endlocal

builds/deprecated-msvc/build/buildall.bat

@@ -0,0 +1,16 @@
+@ECHO OFF
+:: Usage: buildall.bat
+
+:: Build all configurations for all solutions.
+call buildbase.bat ..\vs2017\libzmq.sln 15
+ECHO.
+CALL buildbase.bat ..\vs2015\libzmq.sln 14
+ECHO.
+CALL buildbase.bat ..\vs2013\libzmq.sln 12
+ECHO.
+CALL buildbase.bat ..\vs2012\libzmq.sln 11
+ECHO.
+CALL buildbase.bat ..\vs2010\libzmq.sln 10
+ECHO.
+
+PAUSE

builds/deprecated-msvc/build/buildbase.bat

@@ -1,61 +1,65 @@
 @ECHO OFF
-REM Usage: [buildbase.bat ..\vs2013\mysolution.sln 12]
+@setlocal
+REM Usage: [buildbase.bat ..\vs2013\mysolution.sln 12 [Clean]]
 
 SET solution=%1
 SET version=%2
+
+:: supports passing in Clean as third argument if "make clean" behavior is desired
+SET target=%3
+SET ACTION=Building
+if NOT "%target%" == "" set target=/t:%target%&set ACTION=Cleaning
+
 SET log=build_%version%.log
 SET tools=Microsoft Visual Studio %version%.0\VC\vcvarsall.bat
+if "%version%" == "15" SET tools=Microsoft Visual Studio\2017\Community\VC\Auxiliary\Build\vcvarsall.bat
 SET environment="%programfiles(x86)%\%tools%"
 IF NOT EXIST %environment% SET environment="%programfiles%\%tools%"
 IF NOT EXIST %environment% GOTO no_tools
 
-ECHO Building: %solution%
+@ECHO %ACTION% %solution%
+
+SET __CURRENT_DIR__=%CD%
+CALL %environment% x86 >%SystemDrive%\nul 2>&1
+ECHO Platform=x86 2> %log%
+CD /D %__CURRENT_DIR__%
+SET __CURRENT_DIR__=
 
-CALL %environment% x86 > nul
-ECHO Platform=x86
 
 ECHO Configuration=DynDebug
-msbuild /m /v:n /p:Configuration=DynDebug /p:Platform=Win32 %solution% > %log%
-IF errorlevel 1 GOTO error
+msbuild /m /v:n /p:Configuration=DynDebug /p:Platform=Win32 %solution% %target%>> %log% || GOTO error
 ECHO Configuration=DynRelease
-msbuild /m /v:n /p:Configuration=DynRelease /p:Platform=Win32 %solution% >> %log%
-IF errorlevel 1 GOTO error
+msbuild /m /v:n /p:Configuration=DynRelease /p:Platform=Win32 %solution% %target%>> %log% || GOTO error
 ECHO Configuration=LtcgDebug
-msbuild /m /v:n /p:Configuration=LtcgDebug /p:Platform=Win32 %solution% >> %log%
-IF errorlevel 1 GOTO error
+msbuild /m /v:n /p:Configuration=LtcgDebug /p:Platform=Win32 %solution% %target%>> %log% || GOTO error
 ECHO Configuration=LtcgRelease
-msbuild /m /v:n /p:Configuration=LtcgRelease /p:Platform=Win32 %solution% >> %log%
-IF errorlevel 1 GOTO error
+msbuild /m /v:n /p:Configuration=LtcgRelease /p:Platform=Win32 %solution% %target%>> %log% || GOTO error
 ECHO Configuration=StaticDebug
-msbuild /m /v:n /p:Configuration=StaticDebug /p:Platform=Win32 %solution% >> %log%
-IF errorlevel 1 GOTO error
+msbuild /m /v:n /p:Configuration=StaticDebug /p:Platform=Win32 %solution% %target%>> %log% || GOTO error
 ECHO Configuration=StaticRelease
-msbuild /m /v:n /p:Configuration=StaticRelease /p:Platform=Win32 %solution% >> %log%
-IF errorlevel 1 GOTO error
+msbuild /m /v:n /p:Configuration=StaticRelease /p:Platform=Win32 %solution% %target%>> %log% || GOTO error
 
-CALL %environment% x86_amd64 > nul
+SET __CURRENT_DIR__=%CD%
+CALL %environment% x86_amd64 >%SystemDrive%\nul 2>&1
 ECHO Platform=x64
+CD /D %__CURRENT_DIR__%
+SET __CURRENT_DIR__=
+
 
 ECHO Configuration=DynDebug
-msbuild /m /v:n /p:Configuration=DynDebug /p:Platform=x64 %solution% > %log%
-IF errorlevel 1 GOTO error
+msbuild /m /v:n /p:Configuration=DynDebug /p:Platform=x64 %solution% %target%>> %log% || GOTO error
 ECHO Configuration=DynRelease
-msbuild /m /v:n /p:Configuration=DynRelease /p:Platform=x64 %solution% >> %log%
-IF errorlevel 1 GOTO error
+msbuild /m /v:n /p:Configuration=DynRelease /p:Platform=x64 %solution% %target%>> %log% || GOTO error
 ECHO Configuration=LtcgDebug
-msbuild /m /v:n /p:Configuration=LtcgDebug /p:Platform=x64 %solution% >> %log%
-IF errorlevel 1 GOTO error
+msbuild /m /v:n /p:Configuration=LtcgDebug /p:Platform=x64 %solution% %target%>> %log% || GOTO error
 ECHO Configuration=LtcgRelease
-msbuild /m /v:n /p:Configuration=LtcgRelease /p:Platform=x64 %solution% >> %log%
-IF errorlevel 1 GOTO error
+msbuild /m /v:n /p:Configuration=LtcgRelease /p:Platform=x64 %solution% %target%>> %log% || GOTO error
 ECHO Configuration=StaticDebug
-msbuild /m /v:n /p:Configuration=StaticDebug /p:Platform=x64 %solution% >> %log%
-IF errorlevel 1 GOTO error
+msbuild /m /v:n /p:Configuration=StaticDebug /p:Platform=x64 %solution% %target%>> %log% || GOTO error
 ECHO Configuration=StaticRelease
-msbuild /m /v:n /p:Configuration=StaticRelease /p:Platform=x64 %solution% >> %log%
-IF errorlevel 1 GOTO error
+msbuild /m /v:n /p:Configuration=StaticRelease /p:Platform=x64 %solution% %target%>> %log% || GOTO error
 
-ECHO Complete: %solution%
+ECHO %ACTION% complete: %solution%
 GOTO end
 
 :error
@@ -66,4 +70,4 @@ GOTO end
 ECHO *** ERROR, build tools not found: %tools%
 
 :end
-
+@endlocal

builds/deprecated-msvc/platform.hpp

@@ -0,0 +1,14 @@
+#ifndef __PLATFORM_HPP_INCLUDED__
+#define __PLATFORM_HPP_INCLUDED__
+
+#define ZMQ_HAVE_WINDOWS
+
+// MSVC build configuration is controlled via options exposed in the Visual
+// Studio user interface. The option to use libsodium is not exposed in the
+// user interface unless a sibling `libsodium` directory to that of this
+// repository exists and contains the following files:
+//
+// \builds\msvc\vs2015\libsodium.import.props
+// \builds\msvc\vs2015\libsodium.import.xml
+
+#endif

builds/deprecated-msvc/properties/ReleaseDEXE.props

@@ -13,7 +13,7 @@
 
   <ItemDefinitionGroup>
     <ClCompile>
-      <RuntimeLibrary>MultiThreadedDebugDLL</RuntimeLibrary>
+      <RuntimeLibrary>MultiThreadedDLL</RuntimeLibrary>
     </ClCompile>
   </ItemDefinitionGroup>
 

builds/deprecated-msvc/readme.txt

@@ -0,0 +1,27 @@
+For building on Windows, use:
+
+     cd build
+     ./build.bat
+
+This requires that the CMD.EXE be created using the DevStudio Tools link to create a CMD.EXE window. Also, make sure that the name of the project folder is libzmq (not e.g. libzmq-master) as this is required for correct linking.
+
+Visual Studio product and C++ compiler Versions:
+
+Visual C++ 2008 => Visual C++ 9
+Visual C++ 2010 => Visual C++ 10
+Visual C++ 2012 => Visual C++ 11
+Visual C++ 2013 => Visual C++ 12
+Visual C++ 2015 => Visual C++ 14
+Visual C++ 2017 => Visual C++ 15
+
+Note that solution file icons reflect the compiler version ([9], [10], [11], [12], [14], [15]), not the product version.
+
+The vs2017/vs2015/vs2013/vs2012/vs2010 solution and project files differ only in versioning.
+
+More info here:
+
+http://en.wikipedia.org/wiki/Visual_C%2B%2B
+
+If multiple DevStudio versions are installed, you can run build.bat in separate windows each created by the desired DevStudio target.
+
+To build for all versions of Visual Studio (excluding vs2008), you can run buildall.bat. This is generally a maintainer task.