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macro (add_flags_lnk FLAGS)
set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} ${FLAGS}")
set(CMAKE_EXE_LINKER_FLAGS_DEBUG "${CMAKE_EXE_LINKER_FLAGS_DEBUG} ${FLAGS}")
set(CMAKE_EXE_LINKER_FLAGS_COVERAGE "${CMAKE_EXE_LINKER_FLAGS_COVERAGE} ${FLAGS}")
set(CMAKE_EXE_LINKER_FLAGS_RELEASE "${CMAKE_EXE_LINKER_FLAGS_RELEASE} ${FLAGS}")
set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} ${FLAGS}")
set(CMAKE_SHARED_LINKER_FLAGS_DEBUG "${CMAKE_SHARED_LINKER_FLAGS_DEBUG} ${FLAGS}")
set(CMAKE_SHARED_LINKER_FLAGS_COVERAGE "${CMAKE_SHARED_LINKER_FLAGS_COVERAGE} ${FLAGS}")
set(CMAKE_SHARED_LINKER_FLAGS_RELEASE "${CMAKE_SHARED_LINKER_FLAGS_RELEASE} ${FLAGS}")
set(CMAKE_MODULE_LINKER_FLAGS "${CMAKE_MODULE_LINKER_FLAGS} ${FLAGS}")
set(CMAKE_MODULE_LINKER_FLAGS_DEBUG "${CMAKE_MODULE_LINKER_FLAGS_DEBUG} ${FLAGS}")
set(CMAKE_MODULE_LINKER_FLAGS_COVERAGE "${CMAKE_MODULE_LINKER_FLAGS_COVERAGE} ${FLAGS}")
set(CMAKE_MODULE_LINKER_FLAGS_RELEASE "${CMAKE_MODULE_LINKER_FLAGS_RELEASE} ${FLAGS}")
endmacro()
macro(add_flags_cxx FLAGS)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${FLAGS}")
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${FLAGS}")
endmacro()
macro(enable_profile)
# Declare the flags used for profiling builds:
if (MSVC)
set (CXX_PROFILING "/Zi")
set (LNK_PROFILING "/PROFILE /DEBUG")
else()
set (CXX_PROFILING "-pg")
set (LNK_PROFILING "-pg")
endif()
# Declare the profiling configurations:
SET(CMAKE_CXX_FLAGS_DEBUGPROFILE
"${CMAKE_CXX_FLAGS_DEBUG} ${CXX_PROFILING}"
CACHE STRING "Flags used by the C++ compiler during profile builds."
FORCE )
SET(CMAKE_C_FLAGS_DEBUGPROFILE
"${CMAKE_C_FLAGS_DEBUG} ${CXX_PROFILING}"
CACHE STRING "Flags used by the C compiler during profile builds."
FORCE )
SET(CMAKE_EXE_LINKER_FLAGS_DEBUGPROFILE
"${CMAKE_EXE_LINKER_FLAGS_DEBUG} ${LNK_PROFILING}"
CACHE STRING "Flags used for linking binaries during profile builds."
FORCE )
SET(CMAKE_SHARED_LINKER_FLAGS_DEBUGPROFILE
"${CMAKE_SHARED_LINKER_FLAGS_DEBUG} ${LNK_PROFILING}"
CACHE STRING "Flags used by the shared libraries linker during profile builds."
FORCE )
MARK_AS_ADVANCED(
CMAKE_CXX_FLAGS_DEBUGPROFILE
CMAKE_C_FLAGS_DEBUGPROFILE
CMAKE_EXE_LINKER_FLAGS_DEBUGPROFILE
CMAKE_SHARED_LINKER_FLAGS_DEBUGPROFILE )
SET(CMAKE_CXX_FLAGS_RELEASEPROFILE
"${CMAKE_CXX_FLAGS_RELEASE} ${CXX_PROFILING}"
CACHE STRING "Flags used by the C++ compiler during profile builds."
FORCE )
SET(CMAKE_C_FLAGS_RELEASEPROFILE
"${CMAKE_C_FLAGS_RELEASE} ${CXX_PROFILING}"
CACHE STRING "Flags used by the C compiler during profile builds."
FORCE )
SET(CMAKE_EXE_LINKER_FLAGS_RELEASEPROFILE
"${CMAKE_EXE_LINKER_FLAGS_RELEASE} ${LNK_PROFILING}"
CACHE STRING "Flags used for linking binaries during profile builds."
FORCE )
SET(CMAKE_SHARED_LINKER_FLAGS_RELEASEPROFILE
"${CMAKE_SHARED_LINKER_FLAGS_RELEASE} ${LNK_PROFILING}"
CACHE STRING "Flags used by the shared libraries linker during profile builds."
FORCE )
MARK_AS_ADVANCED(
CMAKE_CXX_FLAGS_RELEASEPROFILE
CMAKE_C_FLAGS_RELEASEPROFILE
CMAKE_EXE_LINKER_FLAGS_RELEASEPROFILE
CMAKE_SHARED_LINKER_FLAGS_RELEASEPROFILE )
# The configuration types need to be set after their respective c/cxx/linker flags and before the project directive
if(MSVC)
set(CMAKE_CONFIGURATION_TYPES "Debug;Release;DebugProfile;ReleaseProfile" CACHE STRING "" FORCE)
else()
set(CMAKE_CONFIGURATION_TYPES "Debug;Release;DebugProfile;ReleaseProfile;Coverage" CACHE STRING "" FORCE)
endif()
endmacro()
function(set_global_flags)
if(MSVC)
# Make build use multiple threads under MSVC:
add_compile_options(/MP)
# Make build use Unicode:
add_compile_definitions(UNICODE _UNICODE)
else()
# TODO: is this needed? NDEBUG is standard. Also, why are we using _DEBUG?
# Add the preprocessor macros used for distinguishing between debug and release builds (CMake does this automatically for MSVC):
set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} -D_DEBUG")
set(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -D_DEBUG")
set(CMAKE_CXX_FLAGS_COVERAGE "${CMAKE_CXX_FLAGS_COVERAGE} -D_DEBUG")
set(CMAKE_C_FLAGS_COVERAGE "${CMAKE_C_FLAGS_COVERAGE} -D_DEBUG")
set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -DNDEBUG")
set(CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE} -DNDEBUG")
endif()
# Allow for a forced 32-bit build under 64-bit OS:
if (FORCE_32)
add_compile_options(-m32)
add_link_options(-m32)
endif()
# Have the compiler generate code specifically targeted at the current machine on Linux:
if(LINUX AND NOT NO_NATIVE_OPTIMIZATION)
add_compile_options(-march=native)
endif()
endfunction()
function(enable_warnings TARGET)
if (MSVC)
# TODO: MSVC level 4, warnings as errors
return ()
endif()
target_compile_options(
${TARGET} PRIVATE
# We use a signed char (fixes #640 on RasPi)
# TODO: specify this in code, not a compile flag:
-fsigned-char
# We support non-IEEE 754 FPUs so can make no guarantees about error:
-ffast-math
# All warnings:
-Wall -Wextra
# TODO: actually fix the warnings instead of disabling them
# or at least disable on a file-level basis:
-Wno-unused-parameter -Wno-missing-noreturn -Wno-padded -Wno-implicit-fallthrough
-Wno-double-promotion
# This is a pretty useless warning, we've already got -Wswitch which is what we need:
-Wno-switch-enum
)
if(CMAKE_CXX_COMPILE_ID STREQUAL "Clang")
target_compile_options(
${TARGET} PRIVATE
# Warnings-as-errors only on Clang for now:
-Werror
# Weverything with Clang exceptions:
-Weverything -Wno-error=disabled-macro-expansion -Wno-weak-vtables
-Wno-exit-time-destructors -Wno-string-conversion -Wno-c++98-compat-pedantic
-Wno-documentation -Wno-documentation-unknown-command -Wno-reserved-id-macro
-Wno-error=unused-command-line-argument
)
endif()
endfunction()
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