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All: Add option to disable LTO

This commit is contained in:
Jeffrey Pfau 2015-03-10 01:32:06 -07:00
parent bf58976290
commit f59932a295
1 changed files with 4 additions and 3 deletions
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7
CMakeLists.txt
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@ -76,10 +76,11 @@ set(LIB_VERSION_ABI 0.2)
set(LIB_VERSION_STRING ${LIB_VERSION_MAJOR}.${LIB_VERSION_MINOR}.${LIB_VERSION_PATCH})
# Advanced settings
set(BUILD_PGO CACHE BOOL "Build with profiling-guided optimization")
set(BUILD_LTO ON CACHE BOOL "Build with link-time optimization")
set(BUILD_PGO OFF CACHE BOOL "Build with profiling-guided optimization")
set(PGO_STAGE_2 CACHE BOOL "Rebuild for profiling-guided optimization after profiles have been generated")
set(PGO_DIR "/tmp/gba-pgo/" CACHE PATH "Profiling-guided optimization profiles path")
mark_as_advanced(BUILD_PGO PGO_STAGE_2 PGO_DIR)
mark_as_advanced(BUILD_LTO BUILD_PGO PGO_STAGE_2 PGO_DIR)
set(PGO_PRE_FLAGS "-pg -fprofile-generate=${PGO_DIR} -fprofile-arcs")
set(PGO_POST_FLAGS "-fprofile-use=${PGO_DIR} -fbranch-probabilities")
@ -125,7 +126,7 @@ if(APPLE)
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -mmacosx-version-min=10.6")
endif()
if(APPLE OR CMAKE_C_COMPILER_ID STREQUAL "GNU")
if(APPLE OR CMAKE_C_COMPILER_ID STREQUAL "GNU" AND BUILD_LTO)
set(CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE} -flto")
set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -flto")
endif()