Some work about adaptive color scheme for Web UI (PR #19901) http://[316:c51a:62a3:8b9::4]/d4708/qBittorrent/src/branch/adaptive-webui
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# Sets cache variable QBT_ADDITIONAL_FLAGS and QBT_ADDITONAL_CXX_FLAGS to list of additional
# compiler flags for C and C++ (QBT_ADDITIONAL_FLAGS) and for C++ only (QBT_ADDITONAL_CXX_FLAGS)
# and appends them to CMAKE_XXX_FLAGS variables.
# It could use add_compile_options(), but then it is needed to use generator expressions,
# and most interesting of them are not compatible with Visual Studio :(
macro(qbt_set_compiler_options)
# if (NOT QBT_ADDITIONAL_FLAGS)
if("${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU" OR "${CMAKE_CXX_COMPILER_ID}" STREQUAL "Clang")
#-Wshadow -Wconversion ?
set(_GCC_COMMON_C_AND_CXX_FLAGS "-Wall -Wextra"
"-Wcast-qual -Wcast-align"
"-Winvalid-pch -Wno-long-long"
#"-fstack-protector-all"
#"-Werror -Wno-error=deprecated-declarations"
)
set(_GCC_COMMON_CXX_FLAGS "-fexceptions -frtti"
"-Woverloaded-virtual -Wold-style-cast"
"-Wnon-virtual-dtor"
#"-Weffc++"
#"-Werror -Wno-error=cpp"
# we should modify code to make these ones obsolete
#"-Wno-error=sign-conversion -Wno-error=float-equal"
)
include(CheckCXXCompilerFlag)
# check for -pedantic
check_cxx_compiler_flag(-pedantic _PEDANTIC_IS_SUPPORTED)
if (_PEDANTIC_IS_SUPPORTED)
list(APPEND _GCC_COMMON_CXX_FLAGS "-pedantic -pedantic-errors")
else (_PEDANTIC_IS_SUPPORTED)
list(APPEND _GCC_COMMON_CXX_FLAGS "-Wpedantic")
endif (_PEDANTIC_IS_SUPPORTED)
if (CMAKE_SYSTEM_NAME MATCHES Linux)
add_definitions(-D_DEFAULT_SOURCE)
endif()
# Clang 5.0 still doesn't support -Wstrict-null-sentinel
if ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "Clang")
check_cxx_compiler_flag(-Wstrict-null-sentinel _STRICT_NULL_SENTINEL_IS_SUPPORTED)
if (_STRICT_NULL_SENTINEL_IS_SUPPORTED)
list(APPEND _GCC_COMMON_CXX_FLAGS "-Wstrict-null-sentinel")
endif (_STRICT_NULL_SENTINEL_IS_SUPPORTED)
# Code should be improved to render this not needed
list(APPEND _GCC_COMMON_CXX_FLAGS "-Wno-error=unused-function")
else ("${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}")
string(APPEND CMAKE_C_FLAGS " ${_GCC_COMMON_C_AND_CXX_FLAGS_STRING}")
string(APPEND CMAKE_CXX_FLAGS " ${_GCC_COMMON_C_AND_CXX_FLAGS_STRING} ${_GCC_COMMON_CXX_FLAGS_STRING}")
endif ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU" OR "${CMAKE_CXX_COMPILER_ID}" STREQUAL "Clang")
if ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "MSVC")
set(QBT_ADDITIONAL_FLAGS "/wd4251 /wd4275 /wd4290 /W4" CACHE STRING "Additional qBittorent compile flags")
endif ()
string(APPEND CMAKE_C_FLAGS " ${QBT_ADDITIONAL_FLAGS}")
string(APPEND CMAKE_CXX_FLAGS " ${QBT_ADDITIONAL_FLAGS}")
# endif (NOT QBT_ADDITIONAL_FLAGS)
endmacro(qbt_set_compiler_options)