FreeRDP/cmake/CXXCompilerFlags.cmake
akallabeth ba8fd2ada5
[cmake] force configuration options
limit multiconfiguration options to supported types
2024-12-05 09:36:23 +01:00

77 lines
2.6 KiB
CMake

include(CheckCXXCompilerFlag)
macro(checkCXXFlag FLAG)
check_cxx_compiler_flag("${FLAG}" CXXFLAG${FLAG})
if(CXXFLAG${FLAG})
string(APPEND CMAKE_CXX_FLAGS " ${FLAG}")
else()
message(WARNING "compiler does not support ${FLAG}")
endif()
endmacro()
option(ENABLE_WARNING_VERBOSE "enable -Weveryting (and some exceptions) for compile" OFF)
option(ENABLE_WARNING_ERROR "enable -Werror for compile" OFF)
if(ENABLE_WARNING_VERBOSE)
if(MSVC)
# Remove previous warning definitions,
# NMake is otherwise complaining.
foreach(flags_var_to_scrub CMAKE_CXX_FLAGS CMAKE_CXX_FLAGS_DEBUG CMAKE_CXX_FLAGS_RELEASE
CMAKE_CXX_FLAGS_RELWITHDEBINFO CMAKE_CXX_FLAGS_MINSIZEREL
)
string(REGEX REPLACE "(^| )[/-]W[ ]*[1-9]" " " "${flags_var_to_scrub}" "${${flags_var_to_scrub}}")
endforeach()
set(C_WARNING_FLAGS /W4 /wo4324)
else()
set(C_WARNING_FLAGS
-Weverything
-Wall
-Wpedantic
-Wno-padded
-Wno-switch-enum
-Wno-cast-align
-Wno-declaration-after-statement
-Wno-unsafe-buffer-usage
-Wno-reserved-identifier
-Wno-covered-switch-default
-Wno-disabled-macro-expansion
-Wno-ctad-maybe-unsupported
-Wno-c++98-compat
-Wno-c++98-compat-pedantic
-Wno-pre-c++17-compat
-Wno-exit-time-destructors
-Wno-gnu-zero-variadic-macro-arguments
)
endif()
foreach(FLAG ${C_WARNING_FLAGS})
checkcxxflag(${FLAG})
endforeach()
endif()
if(ENABLE_WARNING_ERROR)
checkcxxflag(-Werror)
endif()
checkcxxflag(-fno-omit-frame-pointer)
if(CMAKE_CXX_COMPILER_ID MATCHES "Clang" OR CMAKE_CXX_COMPILER_ID MATCHES "GNU")
if(CMAKE_CXX_COMPILER_VERSION VERSION_GREATER_EQUAL 10)
add_compile_options($<$<NOT:$<CONFIG:Debug>>:-fdebug-prefix-map=${CMAKE_SOURCE_DIR}=.>)
add_compile_options($<$<NOT:$<CONFIG:Debug>>:-fmacro-prefix-map=${CMAKE_SOURCE_DIR}=.>)
add_compile_options($<$<NOT:$<CONFIG:Debug>>:-ffile-prefix-map=${CMAKE_SOURCE_DIR}=.>)
add_compile_options($<$<NOT:$<CONFIG:Debug>>:-fdebug-prefix-map=${CMAKE_BINARY_DIR}=./build>)
add_compile_options($<$<NOT:$<CONFIG:Debug>>:-fmacro-prefix-map=${CMAKE_BINARY_DIR}=./build>)
add_compile_options($<$<NOT:$<CONFIG:Debug>>:-ffile-prefix-map=${CMAKE_BINARY_DIR}=./build>)
endif()
endif()
# https://stackoverflow.com/questions/4913922/possible-problems-with-nominmax-on-visual-c
if(WIN32)
add_compile_definitions($<$<COMPILE_LANGUAGE:CXX>:NOMINMAX>)
endif()
set(CMAKE_CXX_FLAGS ${CMAKE_CXX_FLAGS} CACHE STRING "default CXXFLAGS")
message("Using CXXFLAGS ${CMAKE_CXX_FLAGS}")