A Visual Studio build from master (commit id: dac5b45dfb) using the v140_xp toolset yields a binary that is not XP compatible.
Two libraries contain exports that cannot be found:
- IPHLPAPI.DLL : if_nametoindex
- KERNEL32.DLL : InitializeConditionVariable
The latter export is already dealt with in the file './src/condition_variable.hpp'; however this requires setting the _WIN32_WINNT pre-processor definition.
I am not experienced enough to figure a work around for the 'if_nametoindex' method, so I have created a new pre-processor definition 'ZMQ_HAVE_WINDOWS_TARGET_XP' and removed the calling of the function with the limitation that these builds cannot handle a IPv6 address with an adapter name.
To make it easier for people targeting XP with an MSVC build I have modified the MSBuild property file to add/modify the pre-processor definitions if they are building using a XP targeting tool set; such as v140_xp.
* Added a new .gitignore file for excluding Visual Studio build output any popular plug-in generated content. (This was copied from the GitHub project https://github.com/github/gitignore).
* Removed the basic ignore settings from the root folder in favour of more precision within the subfolder's .gitignore file
* Added the new VC compiler's experimental Intellisense database file
All the older (vs2010 -> vs2013) projects had copies of the Visual Studio 2015 MSBuild applied to them when running the 'configure.bat' batch file. Any modifications to a property sheet was not applied to the other Visual Studio versions' projects unless the batch file was re-executed.
* Modified the older projects to reference the Visual Studio 2015 property sheets so changes are immediately applied
* Removed the batch file copy steps (which left the repository very dirty after execution)
Solution: Modified projects to create PDB file for RELEASE targets
- also spread precompiled settings to all DevStudio solution versions
This change affects Windows builds only
Solution: The Coverity Static Code Analyzer was used on libzmq code and found
many issues with uninitialized member variables, some redefinition of variables
hidding previous instances of same variable name and a couple of functions
where return values were not checked, even though all other occurrences were
checked (e.g. init_size() return).
Solution: Use CMD.EXE environment variable to extract DevStudio version
number and build using it. This even supports machines with multiple
DevStudio versions installed, as long as the build for each version is
done on a separate window with the correct environment.
If multiple version builds are desired from a single CMD.EXE, edit the
buildall.bat file to uncomment the build statements for each specific
version desired.
Took me over 8 hours to track down the cause of bizarre link
errors when building with libsodium. The VS project files are
not simple things.
Note to self and other maintainers: when someone is obviously
out of their depth, do not merge their changes to build scripts
without cynical appraisal.
Solution: undo the damage.
Caused by error in last commit which used HAVE_LIBSODIUM instead
of HAVE_SODIUM.
Solution: use HAVE_LIBSODIUM as we do in other configure scripts.
The project is called 'libsodium' and not 'sodium'.
There is an option to enable/disable libsodium via the Visual Studio
UI. This is not practical for command-line usage (via msbuild).
Solution: add configure.bat that searches for libsodium in sibling
directory to libzmq; if it finds it, defines HAVE_LIBSODIUM 1.
This is consistent with zproject, which has the same problem and
is getting the same solution for all dependency resolution on
Windows.
Note that this approach also provides a way to support tweetnacl
via a configure option.
Also, removed duplicate props files and re-copy in configure.bat
as it was an insane nightmare to update these by hand. (and not
clear that they were identical. Now it's forced.)
I hope restoring this from a previous version doesn't do any damage, it
is missing in the current version of this repository and is vital for
the lib to compile anywhere.
Of course people still "can" distributed the sources under the
LGPLv3. However we provide COPYING.LESSER with additional grants.
Solution: specify these grants in the header of each source file.
