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cmake: disable "-march=native" by default

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This commit is contained in:
Zdenko Podobný 2023-03-23 12:55:51 +01:00
parent a6e0aa7f48
commit f779c434b0
1 changed files with 18 additions and 9 deletions
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11
CMakeLists.txt
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@ -89,6 +89,10 @@ option(DISABLED_LEGACY_ENGINE "Disable the legacy OCR engine" OFF)
option(ENABLE_LTO "Enable link-time optimization" OFF)
option(FAST_FLOAT "Enable float for LSTM" ON)
option(ENABLE_OPENCL "Enable unsupported experimental OpenCL support" OFF)
option(ENABLE_NATIVE
"Enable optimization for host CPU (could break HW compatibility)" OFF)
# see
# https://stackoverflow.com/questions/52653025/why-is-march-native-used-so-rarely
option(BUILD_TRAINING_TOOLS "Build training tools" ON)
option(BUILD_TESTS "Build tests" OFF)
option(USE_SYSTEM_ICU "Use system ICU" OFF)
@ -143,6 +147,8 @@ else()
message(STATUS "IPO / LTO not supported: <${error}>")
endif()
set(MARCH_NATIVE_OPT OFF)
if(ENABLE_NATIVE)
check_cxx_compiler_flag("-march=native" COMPILER_SUPPORTS_MARCH_NATIVE)
if(COMPILER_SUPPORTS_MARCH_NATIVE)
set(MARCH_NATIVE_FLAGS "${MARCH_NATIVE_FLAGS} -march=native")
@ -151,7 +157,8 @@ if(COMPILER_SUPPORTS_MARCH_NATIVE)
set(MARCH_NATIVE_FLAGS "${MARCH_NATIVE_FLAGS} -mtune=native")
endif()
set(MARCH_NATIVE_OPT ON)
endif()
endif(COMPILER_SUPPORTS_MARCH_NATIVE)
endif(ENABLE_NATIVE)
message(STATUS "CMAKE_SYSTEM_PROCESSOR=<${CMAKE_SYSTEM_PROCESSOR}>")
@ -518,6 +525,8 @@ message(STATUS "Build with libarchive support [HAVE_LIBARCHIVE]: "
"${HAVE_LIBARCHIVE}")
message(STATUS "Build with libcurl support [HAVE_LIBCURL]: ${HAVE_LIBCURL}")
message(STATUS "Enable float for LSTM [FAST_FLOAT]: ${FAST_FLOAT}")
message(STATUS "Enable optimization for host CPU (could break HW compatibility)"
" [ENABLE_NATIVE]: ${ENABLE_NATIVE}")
message(STATUS "Disable disable graphics (ScrollView) [GRAPHICS_DISABLED]: "
"${GRAPHICS_DISABLED}")
message(STATUS "Disable the legacy OCR engine [DISABLED_LEGACY_ENGINE]: "