241 lines
9.4 KiB
CMake
241 lines
9.4 KiB
CMake
if(MINGW)
|
|
# mingw compiler is known to produce unstable SSE code with -O3 hence we are trying to use -O2 instead
|
|
if(CMAKE_COMPILER_IS_GNUCXX)
|
|
foreach(flags CMAKE_CXX_FLAGS CMAKE_CXX_FLAGS_RELEASE CMAKE_CXX_FLAGS_DEBUG)
|
|
string(REPLACE "-O3" "-O2" ${flags} "${${flags}}")
|
|
endforeach()
|
|
endif()
|
|
|
|
if(CMAKE_COMPILER_IS_GNUCC)
|
|
foreach(flags CMAKE_C_FLAGS CMAKE_C_FLAGS_RELEASE CMAKE_C_FLAGS_DEBUG)
|
|
string(REPLACE "-O3" "-O2" ${flags} "${${flags}}")
|
|
endforeach()
|
|
endif()
|
|
endif()
|
|
|
|
if(MSVC)
|
|
if(CMAKE_CXX_FLAGS STREQUAL CMAKE_CXX_FLAGS_INIT)
|
|
# override cmake default exception handling option
|
|
string(REPLACE "/EHsc" "/EHa" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
|
|
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}" CACHE STRING "Flags used by the compiler during all build types." FORCE)
|
|
endif()
|
|
endif()
|
|
|
|
set(OPENCV_EXTRA_C_FLAGS "")
|
|
set(OPENCV_EXTRA_C_FLAGS_RELEASE "")
|
|
set(OPENCV_EXTRA_C_FLAGS_DEBUG "")
|
|
set(OPENCV_EXTRA_EXE_LINKER_FLAGS "")
|
|
set(OPENCV_EXTRA_EXE_LINKER_FLAGS_RELEASE "")
|
|
set(OPENCV_EXTRA_EXE_LINKER_FLAGS_DEBUG "")
|
|
|
|
if(MINGW)
|
|
# http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40838
|
|
# here we are trying to workaround the problem
|
|
include(CheckCXXCompilerFlag)
|
|
CHECK_CXX_COMPILER_FLAG(-mstackrealign HAVE_STACKREALIGN_FLAG)
|
|
if(HAVE_STACKREALIGN_FLAG)
|
|
set(OPENCV_EXTRA_C_FLAGS "${OPENCV_EXTRA_C_FLAGS} -mstackrealign")
|
|
else()
|
|
CHECK_CXX_COMPILER_FLAG(-mpreferred-stack-boundary=2 HAVE_PREFERRED_STACKBOUNDARY_FLAG)
|
|
if(HAVE_PREFERRED_STACKBOUNDARY_FLAG)
|
|
set(OPENCV_EXTRA_C_FLAGS "${OPENCV_EXTRA_C_FLAGS} -mstackrealign")
|
|
endif()
|
|
endif()
|
|
endif()
|
|
|
|
if(CMAKE_COMPILER_IS_GNUCXX)
|
|
# High level of warnings.
|
|
set(OPENCV_EXTRA_C_FLAGS "${OPENCV_EXTRA_C_FLAGS} -Wall")
|
|
|
|
# The -Wno-long-long is required in 64bit systems when including sytem headers.
|
|
if(X86_64)
|
|
set(OPENCV_EXTRA_C_FLAGS "${OPENCV_EXTRA_C_FLAGS} -Wno-long-long")
|
|
endif()
|
|
|
|
# We need pthread's
|
|
if(UNIX AND NOT ANDROID)
|
|
set(OPENCV_EXTRA_C_FLAGS "${OPENCV_EXTRA_C_FLAGS} -pthread")
|
|
endif()
|
|
|
|
if(OPENCV_WARNINGS_ARE_ERRORS)
|
|
set(OPENCV_EXTRA_C_FLAGS "${OPENCV_EXTRA_C_FLAGS} -Werror")
|
|
endif()
|
|
|
|
if(X86 AND NOT MINGW64 AND NOT X86_64 AND NOT APPLE)
|
|
set(OPENCV_EXTRA_C_FLAGS "${OPENCV_EXTRA_C_FLAGS} -march=i686")
|
|
endif()
|
|
|
|
# Other optimizations
|
|
if(ENABLE_OMIT_FRAME_POINTER)
|
|
set(OPENCV_EXTRA_C_FLAGS "${OPENCV_EXTRA_C_FLAGS} -fomit-frame-pointer")
|
|
else()
|
|
set(OPENCV_EXTRA_C_FLAGS "${OPENCV_EXTRA_C_FLAGS} -fno-omit-frame-pointer")
|
|
endif()
|
|
if(ENABLE_FAST_MATH)
|
|
set(OPENCV_EXTRA_C_FLAGS "${OPENCV_EXTRA_C_FLAGS} -ffast-math")
|
|
endif()
|
|
if(ENABLE_POWERPC)
|
|
set(OPENCV_EXTRA_C_FLAGS "${OPENCV_EXTRA_C_FLAGS} -mcpu=G3 -mtune=G5")
|
|
endif()
|
|
if(ENABLE_SSE)
|
|
set(OPENCV_EXTRA_C_FLAGS "${OPENCV_EXTRA_C_FLAGS} -msse")
|
|
endif()
|
|
if(ENABLE_SSE2)
|
|
set(OPENCV_EXTRA_C_FLAGS "${OPENCV_EXTRA_C_FLAGS} -msse2")
|
|
endif()
|
|
|
|
# SSE3 and further should be disabled under MingW because it generates compiler errors
|
|
if(NOT MINGW)
|
|
if(ENABLE_SSE3)
|
|
set(OPENCV_EXTRA_C_FLAGS "${OPENCV_EXTRA_C_FLAGS} -msse3")
|
|
endif()
|
|
|
|
if(${CMAKE_OPENCV_GCC_VERSION_NUM} GREATER 402)
|
|
set(HAVE_GCC43_OR_NEWER 1)
|
|
endif()
|
|
if(${CMAKE_OPENCV_GCC_VERSION_NUM} GREATER 401)
|
|
set(HAVE_GCC42_OR_NEWER 1)
|
|
endif()
|
|
|
|
if(HAVE_GCC42_OR_NEWER OR APPLE)
|
|
if(ENABLE_SSSE3)
|
|
set(OPENCV_EXTRA_C_FLAGS "${OPENCV_EXTRA_C_FLAGS} -mssse3")
|
|
endif()
|
|
if(HAVE_GCC43_OR_NEWER)
|
|
if(ENABLE_SSE41)
|
|
set(OPENCV_EXTRA_C_FLAGS "${OPENCV_EXTRA_C_FLAGS} -msse4.1")
|
|
endif()
|
|
if(ENABLE_SSE42)
|
|
set(OPENCV_EXTRA_C_FLAGS "${OPENCV_EXTRA_C_FLAGS} -msse4.2")
|
|
endif()
|
|
endif()
|
|
endif()
|
|
endif(NOT MINGW)
|
|
|
|
if(X86 OR X86_64)
|
|
if(NOT APPLE AND CMAKE_SIZEOF_VOID_P EQUAL 4)
|
|
if(ENABLE_SSE2)
|
|
set(OPENCV_EXTRA_C_FLAGS "${OPENCV_EXTRA_C_FLAGS} -mfpmath=sse")# !! important - be on the same wave with x64 compilers
|
|
else()
|
|
set(OPENCV_EXTRA_C_FLAGS "${OPENCV_EXTRA_C_FLAGS} -mfpmath=387")
|
|
endif()
|
|
endif()
|
|
endif()
|
|
|
|
# Profiling?
|
|
if(ENABLE_PROFILING)
|
|
set(OPENCV_EXTRA_C_FLAGS "${OPENCV_EXTRA_C_FLAGS} -pg -g")
|
|
# turn off incompatible options
|
|
foreach(flags CMAKE_CXX_FLAGS CMAKE_C_FLAGS CMAKE_CXX_FLAGS_RELEASE CMAKE_C_FLAGS_RELEASE CMAKE_CXX_FLAGS_DEBUG CMAKE_C_FLAGS_DEBUG OPENCV_EXTRA_C_FLAGS_RELEASE)
|
|
string(REPLACE "-fomit-frame-pointer" "" ${flags} "${${flags}}")
|
|
string(REPLACE "-ffunction-sections" "" ${flags} "${${flags}}")
|
|
endforeach()
|
|
elseif(NOT APPLE AND NOT ANDROID)
|
|
# Remove unreferenced functions: function level linking
|
|
set(OPENCV_EXTRA_C_FLAGS "${OPENCV_EXTRA_C_FLAGS} -ffunction-sections")
|
|
endif()
|
|
|
|
set(OPENCV_EXTRA_C_FLAGS_RELEASE "${OPENCV_EXTRA_C_FLAGS_RELEASE} -DNDEBUG")
|
|
set(OPENCV_EXTRA_C_FLAGS_DEBUG "${OPENCV_EXTRA_C_FLAGS_DEBUG} -O0 -DDEBUG -D_DEBUG")
|
|
if(BUILD_WITH_DEBUG_INFO)
|
|
set(OPENCV_EXTRA_C_FLAGS_DEBUG "${OPENCV_EXTRA_C_FLAGS_DEBUG} -ggdb3")
|
|
endif()
|
|
endif()
|
|
|
|
if(MSVC)
|
|
set(OPENCV_EXTRA_C_FLAGS "${OPENCV_EXTRA_C_FLAGS} /D _CRT_SECURE_NO_DEPRECATE /D _CRT_NONSTDC_NO_DEPRECATE /D _SCL_SECURE_NO_WARNINGS")
|
|
# 64-bit portability warnings, in MSVC80
|
|
if(MSVC80)
|
|
set(OPENCV_EXTRA_C_FLAGS "${OPENCV_EXTRA_C_FLAGS} /Wp64")
|
|
endif()
|
|
|
|
if(BUILD_WITH_DEBUG_INFO)
|
|
set(OPENCV_EXTRA_EXE_LINKER_FLAGS_RELEASE "${OPENCV_EXTRA_EXE_LINKER_FLAGS_RELEASE} /debug")
|
|
endif()
|
|
|
|
# Remove unreferenced functions: function level linking
|
|
set(OPENCV_EXTRA_C_FLAGS "${OPENCV_EXTRA_C_FLAGS} /Gy")
|
|
if(NOT MSVC_VERSION LESS 1400)
|
|
set(OPENCV_EXTRA_C_FLAGS "${OPENCV_EXTRA_C_FLAGS} /bigobj")
|
|
endif()
|
|
if(BUILD_WITH_DEBUG_INFO)
|
|
set(OPENCV_EXTRA_C_FLAGS_RELEASE "${OPENCV_EXTRA_C_FLAGS_RELEASE} /Zi")
|
|
endif()
|
|
|
|
if(NOT MSVC64)
|
|
# 64-bit MSVC compiler uses SSE/SSE2 by default
|
|
if(ENABLE_SSE)
|
|
set(OPENCV_EXTRA_C_FLAGS "${OPENCV_EXTRA_C_FLAGS} /arch:SSE")
|
|
endif()
|
|
if(ENABLE_SSE2)
|
|
set(OPENCV_EXTRA_C_FLAGS "${OPENCV_EXTRA_C_FLAGS} /arch:SSE2")
|
|
endif()
|
|
endif()
|
|
|
|
if(ENABLE_SSE3)
|
|
set(OPENCV_EXTRA_C_FLAGS "${OPENCV_EXTRA_C_FLAGS} /arch:SSE3")
|
|
endif()
|
|
if(ENABLE_SSE4_1)
|
|
set(OPENCV_EXTRA_C_FLAGS "${OPENCV_EXTRA_C_FLAGS} /arch:SSE4.1")
|
|
endif()
|
|
|
|
if(ENABLE_SSE OR ENABLE_SSE2 OR ENABLE_SSE3 OR ENABLE_SSE4_1)
|
|
set(OPENCV_EXTRA_C_FLAGS "${OPENCV_EXTRA_C_FLAGS} /Oi")
|
|
endif()
|
|
|
|
if(X86 OR X86_64)
|
|
if(CMAKE_SIZEOF_VOID_P EQUAL 4 AND ENABLE_SSE2)
|
|
set(OPENCV_EXTRA_C_FLAGS "${OPENCV_EXTRA_C_FLAGS} /fp:fast")# !! important - be on the same wave with x64 compilers
|
|
endif()
|
|
endif()
|
|
endif()
|
|
|
|
# Extra link libs if the user selects building static libs:
|
|
if(NOT BUILD_SHARED_LIBS AND CMAKE_COMPILER_IS_GNUCXX AND NOT ANDROID)
|
|
# Android does not need these settings because they are already set by toolchain file
|
|
set(OPENCV_LINKER_LIBS ${OPENCV_LINKER_LIBS} stdc++)
|
|
set(OPENCV_EXTRA_C_FLAGS "-fPIC ${OPENCV_EXTRA_C_FLAGS}")
|
|
endif()
|
|
|
|
# Add user supplied extra options (optimization, etc...)
|
|
# ==========================================================
|
|
set(OPENCV_EXTRA_C_FLAGS "${OPENCV_EXTRA_C_FLAGS}" CACHE INTERNAL "Extra compiler options")
|
|
set(OPENCV_EXTRA_C_FLAGS_RELEASE "${OPENCV_EXTRA_C_FLAGS_RELEASE}" CACHE INTERNAL "Extra compiler options for Release build")
|
|
set(OPENCV_EXTRA_C_FLAGS_DEBUG "${OPENCV_EXTRA_C_FLAGS_DEBUG}" CACHE INTERNAL "Extra compiler options for Debug build")
|
|
set(OPENCV_EXTRA_EXE_LINKER_FLAGS "${OPENCV_EXTRA_EXE_LINKER_FLAGS}" CACHE INTERNAL "Extra linker flags")
|
|
set(OPENCV_EXTRA_EXE_LINKER_FLAGS_RELEASE "${OPENCV_EXTRA_EXE_LINKER_FLAGS_RELEASE}" CACHE INTERNAL "Extra linker flags for Release build")
|
|
set(OPENCV_EXTRA_EXE_LINKER_FLAGS_DEBUG "${OPENCV_EXTRA_EXE_LINKER_FLAGS_DEBUG}" CACHE INTERNAL "Extra linker flags for Debug build")
|
|
|
|
#combine all "extra" options
|
|
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${OPENCV_EXTRA_C_FLAGS}")
|
|
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${OPENCV_EXTRA_C_FLAGS}")
|
|
set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} ${OPENCV_EXTRA_C_FLAGS_RELEASE}")
|
|
set(CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE} ${OPENCV_EXTRA_C_FLAGS_RELEASE}")
|
|
set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} ${OPENCV_EXTRA_C_FLAGS_DEBUG}")
|
|
set(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} ${OPENCV_EXTRA_C_FLAGS_DEBUG}")
|
|
set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} ${OPENCV_EXTRA_EXE_LINKER_FLAGS}")
|
|
set(CMAKE_EXE_LINKER_FLAGS_RELEASE "${CMAKE_EXE_LINKER_FLAGS_RELEASE} ${OPENCV_EXTRA_EXE_LINKER_FLAGS_RELEASE}")
|
|
set(CMAKE_EXE_LINKER_FLAGS_DEBUG "${CMAKE_EXE_LINKER_FLAGS_DEBUG} ${OPENCV_EXTRA_EXE_LINKER_FLAGS_DEBUG}")
|
|
|
|
if(MSVC)
|
|
# avoid warnings from MSVC about overriding the /W* option
|
|
# we replace /W3 with /W4 only for C++ files,
|
|
# since all the 3rd-party libraries OpenCV uses are in C,
|
|
# and we do not care about their warnings.
|
|
string(REPLACE "/W3" "/W4" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
|
|
string(REPLACE "/W3" "/W4" CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE}")
|
|
string(REPLACE "/W3" "/W4" CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG}")
|
|
|
|
# allow extern "C" functions throw exceptions
|
|
foreach(flags CMAKE_C_FLAGS CMAKE_C_FLAGS_RELEASE CMAKE_C_FLAGS_RELEASE CMAKE_CXX_FLAGS CMAKE_CXX_FLAGS_RELEASE CMAKE_CXX_FLAGS_DEBUG)
|
|
string(REPLACE "/EHsc-" "/EHs" ${flags} "${${flags}}")
|
|
string(REPLACE "/EHsc" "/EHs" ${flags} "${${flags}}")
|
|
|
|
string(REPLACE "/Zm1000" "" ${flags} "${${flags}}")
|
|
endforeach()
|
|
|
|
if(NOT ENABLE_NOISY_WARNINGS)
|
|
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /wd4251") #class 'std::XXX' needs to have dll-interface to be used by clients of YYY
|
|
endif()
|
|
endif()
|