- if(CMAKE_VERSION VERSION_LESS "3.9")
- if ( CMAKE_COMPILER_IS_GNUCC
- AND (CMAKE_C_COMPILER_VERSION VERSION_GREATER "4.8.5")
- AND (LINKER_VERSION VERSION_GREATER "2.22"))
- set(enable_lto ON)
- endif()
- else()
- include(CheckIPOSupported)
- check_ipo_supported(RESULT ipo LANGUAGES C CXX)
- if(ipo)
- set(enable_lto ON)
- endif()