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Enable LTO

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This commit is contained in:
Simon Quigley 2025-01-27 23:11:44 -06:00
parent dc4b0980b0
commit b1840bceb5
1 changed files with 11 additions and 0 deletions
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11
cpp/CMakeLists.txt
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@ -6,6 +6,17 @@ set(CMAKE_CXX_STANDARD 23)
set(CMAKE_CXX_STANDARD_REQUIRED ON)
set(CMAKE_BUILD_TYPE Debug CACHE STRING "Build type" FORCE)
include(CheckCXXCompilerFlag)
check_cxx_compiler_flag("-flto=3" COMPILER_SUPPORTS_LTO)
if(COMPILER_SUPPORTS_LTO)
message(STATUS "Enabling LTO Level 3")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -flto=3 -O3")
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -flto=3 -O3")
set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -flto=3")
set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} -flto=3")
endif()
#
# Allow the user to override LAUNCHPAD_CPP_INCLUDE_DIR/LAUNCHPAD_CPP_LIBRARY
#