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Put LTO behind an optional flag

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Philipp David 2022-03-23 10:05:31 +01:00
parent c7c83a35fa
commit dfa5f614aa
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GPG Key ID: 967A5D5EB5071577
1 changed files with 13 additions and 9 deletions
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22
CMakeLists.txt
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@ -43,16 +43,20 @@ set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} -Werror=return-type")
# Fix build with Qt 5.13 # Fix build with Qt 5.13
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -DQT_NO_DEPRECATED_WARNINGS=Y") set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -DQT_NO_DEPRECATED_WARNINGS=Y")
include(CheckIPOSupported) option(ENABLE_LTO "Enable Link Time Optimization" off)
check_ipo_supported(RESULT ipo_supported OUTPUT ipo_error)
if(ipo_supported AND (CMAKE_BUILD_TYPE STREQUAL "Release" OR CMAKE_BUILD_TYPE STREQUAL "MinSizeRel")) if(ENABLE_LTO)
message(STATUS "IPO / LTO enabled") include(CheckIPOSupported)
set(CMAKE_INTERPROCEDURAL_OPTIMIZATION TRUE) check_ipo_supported(RESULT ipo_supported OUTPUT ipo_error)
elseif(ipo_supported)
message(STATUS "Not enabling IPO / LTO on debug builds") if(ipo_supported AND (CMAKE_BUILD_TYPE STREQUAL "Release" OR CMAKE_BUILD_TYPE STREQUAL "MinSizeRel"))
else() message(STATUS "IPO / LTO enabled")
message(STATUS "IPO / LTO not supported: <${ipo_error}>") set(CMAKE_INTERPROCEDURAL_OPTIMIZATION TRUE)
elseif(ipo_supported)
message(STATUS "Not enabling IPO / LTO on debug builds")
else()
message(STATUS "IPO / LTO not supported: <${ipo_error}>")
endif()
endif() endif()
##################################### Set Application options ##################################### ##################################### Set Application options #####################################