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Explicitly specify -Wno-error if LIBCXX_ENABLE_WERROR is false.

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libcxx doesn't build with -Werror because of #warnings in its source
code. But when libcxx is built as an external LLVM project, it inherits
LLVM build flags, breaking the build if LLVM_ENABLE_WERROR is enabled.


git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@191814 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Alexey Samsonov 2013-10-02 07:44:19 +00:00
parent 19e7862eb8
commit f7eb5738f6
2 changed files with 5 additions and 0 deletions
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3
CMakeLists.txt
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@ -189,6 +189,9 @@ append_if(LIBCXX_CXX_WARNING_FLAGS LIBCXX_HAS_WNO_LONG_LONG_FLAG -Wno-long-long)
if (LIBCXX_ENABLE_WERROR)
append_if(LIBCXX_CXX_WARNING_FLAGS LIBCXX_HAS_WERROR_FLAG -Werror)
append_if(LIBCXX_CXX_WARNING_FLAGS LIBCXX_HAS_WX_FLAG -WX)
else()
append_if(LIBCXX_CXX_WARNING_FLAGS LIBCXX_HAS_WNO_ERROR_FLAG -Wno-error)
append_if(LIBCXX_CXX_WARNING_FLAGS LIBCXX_HAS_NO_WX_FLAG -WX-)
endif()
if (LIBCXX_ENABLE_PEDANTIC)
append_if(LIBCXX_CXX_WARNING_FLAGS LIBCXX_HAS_PEDANTIC_FLAG -pedantic)

2
cmake/config-ix.cmake
View File

@ -13,9 +13,11 @@ check_cxx_compiler_flag(-Wwrite-strings LIBCXX_HAS_WWRITE_STRINGS_FLAG)
check_cxx_compiler_flag(-Wno-long-long LIBCXX_HAS_WNO_LONG_LONG_FLAG)
check_cxx_compiler_flag(-pedantic LIBCXX_HAS_PEDANTIC_FLAG)
check_cxx_compiler_flag(-Werror LIBCXX_HAS_WERROR_FLAG)
check_cxx_compiler_flag(-Wno-error LIBCXX_HAS_WNO_ERROR_FLAG)
check_cxx_compiler_flag(-fno-exceptions LIBCXX_HAS_FNO_EXCEPTIONS_FLAG)
check_cxx_compiler_flag(-fno-rtti LIBCXX_HAS_FNO_RTTI_FLAG)
check_cxx_compiler_flag(/WX LIBCXX_HAS_WX_FLAG)
check_cxx_compiler_flag(/WX- LIBCXX_HAS_NO_WX_FLAG)
check_cxx_compiler_flag(/EHsc LIBCXX_HAS_EHSC_FLAG)
check_cxx_compiler_flag(/EHs- LIBCXX_HAS_NO_EHS_FLAG)
check_cxx_compiler_flag(/EHa- LIBCXX_HAS_NO_EHA_FLAG)