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# Build type link flags
set (CMAKE_LINK_FLAGS_RELEASE " " CACHE INTERNAL "Link flags for release" FORCE)
set (CMAKE_LINK_FLAGS_RELWITHDEBINFO " " CACHE INTERNAL "Link flags for release with debug support" FORCE)
set (CMAKE_LINK_FLAGS_DEBUG " " CACHE INTERNAL "Link flags for debug" FORCE)
set (CMAKE_LINK_FLAGS_PROFILE " -pg" CACHE INTERNAL "Link flags for profile" FORCE)
set (CMAKE_LINK_FLAGS_COVERAGE " --coverage" CACHE INTERNAL "Link flags for static code checking" FORCE)
set (CMAKE_C_FLAGS_RELEASE "")
if (NOT APPLE)
# -s doesn't work with default osx compiler clang, alternative:
# http://stackoverflow.com/questions/6085491/gcc-vs-clang-symbol-strippingu
set (CMAKE_C_FLAGS_RELEASE "-s")
endif()
if (NOT MSVC)
set (CMAKE_C_FLAGS_RELEASE " ${CMAKE_C_FLAGS_RELEASE} -O3 -DNDEBUG ${CMAKE_C_FLAGS_ALL}" CACHE INTERNAL "C Flags for release" FORCE)
set (CMAKE_CXX_FLAGS_RELEASE ${CMAKE_C_FLAGS_RELEASE})
set (CMAKE_C_FLAGS_RELWITHDEBINFO " -g -O2 ${CMAKE_C_FLAGS_ALL}" CACHE INTERNAL "C Flags for release with debug support" FORCE)
set (CMAKE_CXX_FLAGS_RELWITHDEBINFO ${CMAKE_C_FLAGS_RELWITHDEBINFO})
set (CMAKE_C_FLAGS_DEBUG " -ggdb3 ${CMAKE_C_FLAGS_ALL}" CACHE INTERNAL "C Flags for debug" FORCE)
set (CMAKE_CXX_FLAGS_DEBUG ${CMAKE_C_FLAGS_DEBUG})
set (CMAKE_C_FLAGS_PROFILE " -fno-omit-frame-pointer -g -pg ${CMAKE_C_FLAGS_ALL}" CACHE INTERNAL "C Flags for profile" FORCE)
set (CMAKE_CXX_FLAGS_PROFILE ${CMAKE_C_FLAGS_PROFILE})
set (CMAKE_C_FLAGS_COVERAGE " -g -O0 -Wformat=2 --coverage -fno-inline ${CMAKE_C_FLAGS_ALL}" CACHE INTERNAL "C Flags for static code checking" FORCE)
set (CMAKE_CXX_FLAGS_COVERAGE "${CMAKE_C_FLAGS_COVERAGE} -fno-elide-constructors -fno-default-inline -fno-implicit-inline-templates")
endif()
#####################################
# Set all the global build flags
set (CMAKE_C_FLAGS "${CMAKE_C_FLAGS_${CMAKE_BUILD_TYPE_UPPERCASE}}")
set (CMAKE_EXE_LINKER_FLAGS "${CMAKE_LINK_FLAGS_${CMAKE_BUILD_TYPE_UPPERCASE}}")
set (CMAKE_SHARED_LINKER_FLAGS "${CMAKE_LINK_FLAGS_${CMAKE_BUILD_TYPE_UPPERCASE}}")
set (CMAKE_MODULE_LINKER_FLAGS "${CMAKE_LINK_FLAGS_${CMAKE_BUILD_TYPE_UPPERCASE}}")
if (UNIX)
set (CMAKE_C_FLAGS "${CMAKE_C_FLAGS_${CMAKE_BUILD_TYPE_UPPERCASE}}")
set (CMAKE_EXE_LINKER_FLAGS "${CMAKE_LINK_FLAGS_${CMAKE_BUILD_TYPE_UPPERCASE}}")
set (CMAKE_SHARED_LINKER_FLAGS "${CMAKE_LINK_FLAGS_${CMAKE_BUILD_TYPE_UPPERCASE}}")
set (CMAKE_MODULE_LINKER_FLAGS "${CMAKE_LINK_FLAGS_${CMAKE_BUILD_TYPE_UPPERCASE}}")
# Add visibility in UNIX
check_gcc_visibility()
if (GCC_SUPPORTS_VISIBILITY)
SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fvisibility=hidden")
endif()
endif()
# Compiler-specific C++11 activation.
if ("${CMAKE_CXX_COMPILER_ID}" MATCHES "GNU")
execute_process(
COMMAND ${CMAKE_CXX_COMPILER} -dumpversion OUTPUT_VARIABLE GCC_VERSION)
if (NOT (GCC_VERSION VERSION_GREATER 4.7))
message(FATAL_ERROR "${PROJECT_NAME} requires g++ 4.8 or greater.")
endif ()
elseif ("${CMAKE_CXX_COMPILER_ID}" MATCHES "Clang")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -stdlib=libc++")
elseif ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "MSVC")
if (MSVC_VERSION LESS 1800)
message(FATAL_ERROR "${PROJECT_NAME} requires VS 2013 or greater.")
endif()
else ()
message(FATAL_ERROR "Your C++ compiler does not support C++11.")
endif ()
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