spdlog/cmake/utils.cmake

# Get spdlog version from include/spdlog/version.h and put it in SPDLOG_VERSION
function(spdlog_extract_version)
	file(READ "${CMAKE_CURRENT_LIST_DIR}/include/spdlog/version.h" file_contents)
	string(REGEX MATCH "SPDLOG_VER_MAJOR ([0-9]+)" _  "${file_contents}")
	if(NOT CMAKE_MATCH_COUNT EQUAL 1)
        message(FATAL_ERROR "Could not extract major version number from spdlog/version.h")
	endif()
	set(ver_major ${CMAKE_MATCH_1})

	string(REGEX MATCH "SPDLOG_VER_MINOR ([0-9]+)" _  "${file_contents}")
	if(NOT CMAKE_MATCH_COUNT EQUAL 1)
        message(FATAL_ERROR "Could not extract minor version number from spdlog/version.h")
	endif()

	set(ver_minor ${CMAKE_MATCH_1})
	string(REGEX MATCH "SPDLOG_VER_PATCH ([0-9]+)" _  "${file_contents}")
	if(NOT CMAKE_MATCH_COUNT EQUAL 1)
        message(FATAL_ERROR "Could not extract patch version number from spdlog/version.h")
	endif()
	set(ver_patch ${CMAKE_MATCH_1})

    set(SPDLOG_VERSION_MAJOR ${ver_major} PARENT_SCOPE)
	set (SPDLOG_VERSION "${ver_major}.${ver_minor}.${ver_patch}" PARENT_SCOPE)
endfunction()


# Turn on warnings on the given target
function(spdlog_enable_warnings target_name)
    target_compile_options(${target_name} PRIVATE
        $<$<OR:$<CXX_COMPILER_ID:Clang>,$<CXX_COMPILER_ID:AppleClang>,$<CXX_COMPILER_ID:GNU>>:
            -Wall -Wextra -Wconversion -pedantic -Wfatal-errors>
        $<$<CXX_COMPILER_ID:MSVC>:/W4>)
		if(MSVC_VERSION GREATER  1900)  #Allow non fatal security wanrnings for msvc 2015
			target_compile_options(${target_name} PRIVATE /WX)
		endif()
endfunction()


# Enable address sanitizer (gcc/clang only)
function(spdlog_enable_sanitizer target_name)
	if (NOT CMAKE_CXX_COMPILER_ID MATCHES "GNU|Clang")
		message(FATAL_ERROR "Sanitizer supported only for gcc/clang")
	endif()
	message(STATUS "Address sanitizer enabled")
	target_compile_options(${target_name} PRIVATE -fsanitize=address,undefined)
	target_compile_options(${target_name} PRIVATE -fno-sanitize=signed-integer-overflow)
	target_compile_options(${target_name} PRIVATE -fno-sanitize-recover=all)
	target_compile_options(${target_name} PRIVATE -fno-omit-frame-pointer)
	target_link_libraries(${target_name} PRIVATE -fsanitize=address,undefined -fuse-ld=gold)
endfunction()