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Make it build when using Clang under CMake

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The pair Clang/qmake builds.
CMake compiler settings are more strict and it causes clang build to fail.
This commit is contained in:
Luís Pereira 2018-02-26 18:18:18 +00:00
parent 050af8a793
commit 058bad0af3
1 changed files with 15 additions and 1 deletions
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16
cmake/Modules/MacroQbtCompilerSettings.cmake
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@ -16,7 +16,7 @@ macro(qbt_set_compiler_options)
"-Werror -Wno-error=deprecated-declarations"
)
set (_GCC_COMMON_CXX_FLAGS "-fexceptions -frtti"
"-Woverloaded-virtual -Wold-style-cast -Wstrict-null-sentinel"
"-Woverloaded-virtual -Wold-style-cast"
"-Wnon-virtual-dtor -Wfloat-equal -Wcast-qual -Wcast-align"
"-Werror=overloaded-virtual"
# "-Weffc++"
@ -54,6 +54,20 @@ macro(qbt_set_compiler_options)
endif(${GLIBC_VERSION})
endif (CMAKE_SYSTEM_NAME MATCHES Linux)
if ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "Clang")
# Clang 5.0 still doesn't support -Wstrict-null-sentinel
check_cxx_compiler_flag(-Wstrict-null-sentinel _STRICT_NULL_SENTINEL_IS_SUPPORTED)
if (_STRICT_NULL_SENTINEL_IS_SUPPORTED)
list(APPEND _GCC_COMMON_CXX_FLAGS "-Wstrict-null-sentinel")
endif (_STRICT_NULL_SENTINEL_IS_SUPPORTED)
# Code should be improved to render this not needed
list(APPEND _GCC_COMMON_CXX_FLAGS "-Wno-error=unused-function -Wno-error=inconsistent-missing-override")
else ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "Clang")
# GCC supports it
list(APPEND _GCC_COMMON_CXX_FLAGS "-Wstrict-null-sentinel")
endif ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "Clang")
string(REPLACE ";" " " _GCC_COMMON_C_AND_CXX_FLAGS_STRING "${_GCC_COMMON_C_AND_CXX_FLAGS}")
string(REPLACE ";" " " _GCC_COMMON_CXX_FLAGS_STRING "${_GCC_COMMON_CXX_FLAGS}")