opencv/cmake/OpenCVGenPkgconfig.cmake
Roman Donchenko 6e121b2e29 Use imported targets for linking to CUDA
This retains the desirable quality of not including paths to CUDA libraries
from the build system into the config files, and has two major advantages:

* It removes the need to use link_directories, which doesn't guarantee that
  the libraries from the supplied directory will be used (there may be
  libraries with the same names earlier in the search path).

* It removes the need to put -L entries into OPENCV_LINKER_LIBS. This variable
  is used with target_link_libraries, where such entries are treated as linker
  flags, so doing this is unportable. I remove the support for -L entries
  from OpenCVGenPkgconfig.cmake, as well, to discourage adding them in the
  future.
2015-03-31 13:46:28 +03:00

107 lines
3.9 KiB
CMake

# --------------------------------------------------------------------------------------------
# according to man pkg-config
# The package name specified on the pkg-config command line is defined to
# be the name of the metadata file, minus the .pc extension. If a library
# can install multiple versions simultaneously, it must give each version
# its own name (for example, GTK 1.2 might have the package name "gtk+"
# while GTK 2.0 has "gtk+-2.0").
#
# ${BIN_DIR}/unix-install/opencv.pc -> For use *with* "make install"
# -------------------------------------------------------------------------------------------
if(CMAKE_BUILD_TYPE MATCHES "Release")
set(ocv_optkind OPT)
else()
set(ocv_optkind DBG)
endif()
#build the list of opencv libs and dependencies for all modules
set(OpenCV_LIB_COMPONENTS "")
set(OpenCV_EXTRA_COMPONENTS "")
foreach(m ${OPENCV_MODULES_PUBLIC})
list(INSERT OpenCV_LIB_COMPONENTS 0 ${${m}_MODULE_DEPS_${ocv_optkind}} ${m})
if(${m}_EXTRA_DEPS_${ocv_optkind})
list(INSERT OpenCV_EXTRA_COMPONENTS 0 ${${m}_EXTRA_DEPS_${ocv_optkind}})
endif()
endforeach()
ocv_list_unique(OpenCV_LIB_COMPONENTS)
ocv_list_unique(OpenCV_EXTRA_COMPONENTS)
ocv_list_reverse(OpenCV_LIB_COMPONENTS)
ocv_list_reverse(OpenCV_EXTRA_COMPONENTS)
#build the list of components
# Note:
# when linking against static libraries, if libfoo depends on libbar, then
# libfoo must come first in the linker flags.
# world is a special target whose library should come first, especially for
# static link.
if(OpenCV_LIB_COMPONENTS MATCHES "opencv_world")
list(REMOVE_ITEM OpenCV_LIB_COMPONENTS "opencv_world")
list(INSERT OpenCV_LIB_COMPONENTS 0 "opencv_world")
endif()
set(OpenCV_LIB_COMPONENTS_)
foreach(CVLib ${OpenCV_LIB_COMPONENTS})
get_target_property(libloc ${CVLib} LOCATION_${CMAKE_BUILD_TYPE})
if(libloc MATCHES "3rdparty")
set(libpath "\${exec_prefix}/share/OpenCV/3rdparty/${OPENCV_LIB_INSTALL_PATH}")
else()
set(libpath "\${exec_prefix}/${OPENCV_LIB_INSTALL_PATH}")
endif()
list(APPEND OpenCV_LIB_COMPONENTS_ "-L${libpath}")
get_filename_component(libname ${CVLib} NAME_WE)
string(REGEX REPLACE "^lib" "" libname "${libname}")
list(APPEND OpenCV_LIB_COMPONENTS_ "-l${libname}")
endforeach()
# add extra dependencies required for OpenCV
if(OpenCV_EXTRA_COMPONENTS)
foreach(extra_component ${OpenCV_EXTRA_COMPONENTS})
if(TARGET "${extra_component}")
get_target_property(extra_component_is_imported "${extra_component}" IMPORTED)
if(extra_component_is_imported)
get_target_property(extra_component "${extra_component}" LOCATION)
endif()
endif()
if(extra_component MATCHES "^-l")
list(APPEND OpenCV_LIB_COMPONENTS_ "${extra_component}")
elseif(extra_component MATCHES "[\\/]")
get_filename_component(libdir "${extra_component}" PATH)
get_filename_component(libname "${extra_component}" NAME_WE)
string(REGEX REPLACE "^lib" "" libname "${libname}")
list(APPEND OpenCV_LIB_COMPONENTS_ "-L${libdir}" "-l${libname}")
else()
list(APPEND OpenCV_LIB_COMPONENTS_ "-l${extra_component}")
endif()
endforeach()
endif()
list(REMOVE_DUPLICATES OpenCV_LIB_COMPONENTS_)
string(REPLACE ";" " " OpenCV_LIB_COMPONENTS "${OpenCV_LIB_COMPONENTS_}")
#generate the .pc file
set(prefix "${CMAKE_INSTALL_PREFIX}")
set(exec_prefix "\${prefix}")
set(libdir "\${exec_prefix}/${OPENCV_LIB_INSTALL_PATH}")
set(includedir "\${prefix}/${OPENCV_INCLUDE_INSTALL_PATH}")
if(INSTALL_TO_MANGLED_PATHS)
set(OPENCV_PC_FILE_NAME "opencv-${OPENCV_VERSION}.pc")
else()
set(OPENCV_PC_FILE_NAME opencv.pc)
endif()
configure_file("${OpenCV_SOURCE_DIR}/cmake/templates/opencv-XXX.pc.in"
"${CMAKE_BINARY_DIR}/unix-install/${OPENCV_PC_FILE_NAME}"
@ONLY)
if(UNIX AND NOT ANDROID)
install(FILES ${CMAKE_BINARY_DIR}/unix-install/${OPENCV_PC_FILE_NAME} DESTINATION ${OPENCV_LIB_INSTALL_PATH}/pkgconfig COMPONENT dev)
endif()