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[CMake] CMake's default value for CMAKE_CXX_FLAGS includes /W3

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remove this so we can have fine grained control of warnings.
This commit is contained in:
Dan Liew 2017-04-29 00:29:26 +01:00
parent fe1af4bcdb
commit fb403229bd
1 changed files with 7 additions and 0 deletions
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7
contrib/cmake/cmake/compiler_warnings.cmake
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@ -15,6 +15,13 @@ elseif ("${CMAKE_CXX_COMPILER_ID}" MATCHES "Clang")
# FIXME: Remove "x.." when CMP0054 is set to NEW
elseif ("x${CMAKE_CXX_COMPILER_ID}" STREQUAL "xMSVC")
list(APPEND WARNING_FLAGS_TO_CHECK ${MSVC_WARNINGS})
# CMake's default flags include /W3 already so remove them if
# they already exist.
if ("${CMAKE_CXX_FLAGS}" MATCHES "/W3")
string(REPLACE "/W3" "" _cmake_cxx_flags_remove_w3 "${CMAKE_CXX_FLAGS}")
set(CMAKE_CXX_FLAGS "${_cmake_cxx_flags_remove_w3}" CACHE STRING "" FORCE)
endif()
else()
message(AUTHOR_WARNING "Unknown compiler")
endif()