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warnings.cmake
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warnings.cmake
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unset(WARNING_COMMON_FLAGS)
unset(WARNING_C_FLAGS)
unset(WARNING_CXX_FLAGS)
if(
(CMAKE_CXX_COMPILER_ID STREQUAL "GNU") OR
(CMAKE_CXX_COMPILER_ID STREQUAL "Clang") OR
(CMAKE_CXX_COMPILER_ID STREQUAL "AppleClang")
)
set(WARNING_COMMON_FLAGS
-Wall
-Wextra
-pedantic
-Wshadow
-Wswitch-default
-Wswitch-enum
-Wconversion
-Wsign-conversion
-Wno-padded
-Wno-disabled-macro-expansion
-Wno-reserved-id-macro
-Wno-keyword-macro
-Wno-long-long
-Wno-unsafe-buffer-usage
)
set(WARNING_C_FLAGS
-Wstrict-prototypes
)
set(WARNING_CXX_FLAGS
-Woverloaded-virtual
-Wno-global-constructors
-Wno-exit-time-destructors
-Wno-weak-vtables
-Wno-old-style-cast
)
if(DEFINED CMAKE_CXX_STANDARD AND NOT CMAKE_CXX_STANDARD EQUAL 98)
list(APPEND WARNING_CXX_FLAGS
-Wno-c++98-compat
-Wno-c++98-compat-pedantic
-Wno-c++14-compat
-Wno-inconsistent-missing-destructor-override
-Wsuggest-override
)
endif()
set(CMAKE_REQUIRED_FLAGS "-Wno-error")
endif()
include(CheckCCompilerFlag)
foreach(flag IN LISTS WARNING_COMMON_FLAGS WARNING_C_FLAGS)
check_c_compiler_flag("${flag}" WARNING_C_FLAG_${flag})
if(WARNING_C_FLAG_${flag})
add_compile_options("$<$<COMPILE_LANGUAGE:C>:${flag}>")
endif()
endforeach()
include(CheckCXXCompilerFlag)
foreach(flag IN LISTS WARNING_COMMON_FLAGS WARNING_CXX_FLAGS)
string(REPLACE "++" "xx" WARNING_CXX_FLAG_VAR "WARNING_CXX_FLAG_${flag}")
check_cxx_compiler_flag("${flag}" ${WARNING_CXX_FLAG_VAR})
if(${WARNING_CXX_FLAG_VAR})
add_compile_options("$<$<COMPILE_LANGUAGE:CXX>:${flag}>")
endif()
endforeach()