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Export -march=native for Clang and prevent it from being included during cross compilation. #2416

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Merged
merged 1 commit into from
Sep 10, 2018
Merged

Export -march=native for Clang and prevent it from being included during cross compilation. #2416

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15 changes: 3 additions & 12 deletions cmake/pcl_find_sse.cmake
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Original file line number Diff line number Diff line change
Expand Up @@ -4,18 +4,9 @@ macro(PCL_CHECK_FOR_SSE)
set(SSE_FLAGS)
set(SSE_DEFINITIONS)

# Test CLANG
#if(CMAKE_COMPILER_IS_CLANG)
# if(APPLE)
# SET(SSE_FLAGS "${SSE_FLAGS} -march=native")
# endif(APPLE)
#endif(CMAKE_COMPILER_IS_CLANG)

# Test GCC/G++
if(CMAKE_COMPILER_IS_GNUCC OR CMAKE_COMPILER_IS_GNUCXX)
execute_process(COMMAND ${CMAKE_CXX_COMPILER} "-dumpversion"
OUTPUT_VARIABLE GCC_VERSION_STRING)
if(GCC_VERSION_STRING VERSION_GREATER 4.2 AND NOT APPLE AND NOT CMAKE_CROSSCOMPILING)
if(NOT CMAKE_CROSSCOMPILING)
# Test GCC/G++ and CLANG
if(CMAKE_COMPILER_IS_GNUCC OR CMAKE_COMPILER_IS_GNUCXX OR CMAKE_COMPILER_IS_CLANG)
list(APPEND SSE_FLAGS "-march=native")
message(STATUS "Using CPU native flags for SSE optimization: ${SSE_FLAGS}")
endif()
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