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Enable LTO building on supported platforms by default #13192

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Enable LTO building on supported platforms by default #13192

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12 changes: 12 additions & 0 deletions CMakeLists.txt
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Expand Up @@ -394,3 +394,15 @@ if(DOXYGEN_FOUND)
COMMENT "Generating API documentation with Doxygen" VERBATIM
)
endif()

# enable LTO / IPO
if (CMAKE_BUILD_TYPE STREQUAL Release)
include(CheckIPOSupported)
check_ipo_supported(RESULT result OUTPUT error)
if( result )
message(STATUS "LTO / IPO enabled")
set(INTERPROCEDURAL_OPTIMIZATION TRUE)
else()
message(STATUS "LTO / IPO not supported: <${error}>")
endif()
endif()