Merge remote-tracking branch 'upstream/3.4' into merge-3.4

This commit is contained in:
Alexander Alekhin
2022-01-31 12:53:45 +00:00
27 changed files with 575 additions and 113 deletions

View File

@@ -119,12 +119,12 @@ if(CV_GCC OR CV_CLANG)
# we want.
add_extra_compiler_option(-Wall)
endif()
add_extra_compiler_option(-Werror=return-type)
add_extra_compiler_option(-Werror=non-virtual-dtor)
add_extra_compiler_option(-Werror=address)
add_extra_compiler_option(-Werror=sequence-point)
add_extra_compiler_option(-Wreturn-type)
add_extra_compiler_option(-Wnon-virtual-dtor)
add_extra_compiler_option(-Waddress)
add_extra_compiler_option(-Wsequence-point)
add_extra_compiler_option(-Wformat)
add_extra_compiler_option(-Werror=format-security -Wformat)
add_extra_compiler_option(-Wformat-security -Wformat)
add_extra_compiler_option(-Wmissing-declarations)
add_extra_compiler_option(-Wmissing-prototypes)
add_extra_compiler_option(-Wstrict-prototypes)
@@ -367,6 +367,22 @@ if(NOT OPENCV_SKIP_LINK_AS_NEEDED)
endif()
endif()
# Apply "-Wl,--no-undefined" linker flags: https://github.com/opencv/opencv/pull/21347
if(NOT OPENCV_SKIP_LINK_NO_UNDEFINED)
if(UNIX AND (NOT APPLE OR NOT CMAKE_VERSION VERSION_LESS "3.2"))
set(_option "-Wl,--no-undefined")
set(_saved_CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS}")
set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} ${_option}") # requires CMake 3.2+ and CMP0056
ocv_check_compiler_flag(CXX "" HAVE_LINK_NO_UNDEFINED)
set(CMAKE_EXE_LINKER_FLAGS "${_saved_CMAKE_EXE_LINKER_FLAGS}")
if(HAVE_LINK_NO_UNDEFINED)
set(OPENCV_EXTRA_EXE_LINKER_FLAGS "${OPENCV_EXTRA_EXE_LINKER_FLAGS} ${_option}")
set(OPENCV_EXTRA_SHARED_LINKER_FLAGS "${OPENCV_EXTRA_SHARED_LINKER_FLAGS} ${_option}")
set(OPENCV_EXTRA_MODULE_LINKER_FLAGS "${OPENCV_EXTRA_MODULE_LINKER_FLAGS} ${_option}")
endif()
endif()
endif()
# combine all "extra" options
if(NOT OPENCV_SKIP_EXTRA_COMPILER_FLAGS)
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${OPENCV_EXTRA_FLAGS} ${OPENCV_EXTRA_C_FLAGS}")