sfizz/cmake/CheckIPO.cmake

21 lines
640 B
CMake

# Added in CMake 3.9
include (CheckIPOSupported)
check_ipo_supported (RESULT result OUTPUT output)
if (result AND ENABLE_LTO AND CMAKE_BUILD_TYPE STREQUAL "Release")
message (STATUS "\nLTO enabled.")
else()
if (${output})
message (WARNING "\nIPO disabled: ${output}")
else()
message (WARNING "\nIPO was disabled, not in a Release build?")
endif()
set (ENABLE_LTO OFF)
endif()
function (SFIZZ_ENABLE_LTO_IF_NEEDED TARGET)
if (ENABLE_LTO)
message(STATUS "Enabling LTO on ${TARGET}")
set_property (TARGET ${TARGET} PROPERTY INTERPROCEDURAL_OPTIMIZATION True)
endif()
endfunction()