cmake/OpenCVGenConfig.cmake

# --------------------------------------------------------------------------------------------
#  Installation for CMake Module:  OpenCVConfig.cmake
#  Part 1/3: ${BIN_DIR}/OpenCVConfig.cmake              -> For use *without* "make install"
#  Part 2/3: ${BIN_DIR}/unix-install/OpenCVConfig.cmake -> For use with "make install"
#  Part 3/3: ${BIN_DIR}/win-install/OpenCVConfig.cmake  -> For use within binary installers/packages
# -------------------------------------------------------------------------------------------

if(INSTALL_TO_MANGLED_PATHS)
  set(OpenCV_USE_MANGLED_PATHS_CONFIGCMAKE TRUE)
else()
  set(OpenCV_USE_MANGLED_PATHS_CONFIGCMAKE FALSE)
endif()

if(NOT OpenCV_CUDA_CC)
  set(OpenCV_CUDA_CC_CONFIGCMAKE "\"\"")
  set(OpenCV_CUDA_VERSION "")
else()
  set(OpenCV_CUDA_CC_CONFIGCMAKE "${OpenCV_CUDA_CC}")
  set(OpenCV_CUDA_VERSION ${CUDA_VERSION_STRING})
endif()

if(NOT ANDROID_NATIVE_API_LEVEL)
  set(OpenCV_ANDROID_NATIVE_API_LEVEL_CONFIGCMAKE 0)
else()
  set(OpenCV_ANDROID_NATIVE_API_LEVEL_CONFIGCMAKE "${ANDROID_NATIVE_API_LEVEL}")
endif()

if(CMAKE_GENERATOR MATCHES "Visual" OR CMAKE_GENERATOR MATCHES "Xcode")
  set(OpenCV_ADD_DEBUG_RELEASE_CONFIGCMAKE TRUE)
else()
  set(OpenCV_ADD_DEBUG_RELEASE_CONFIGCMAKE FALSE)
endif()



if(WIN32)
  if(MINGW)
    set(OPENCV_LINK_LIBRARY_SUFFIX ".dll.a")
  else()
    set(OPENCV_LINK_LIBRARY_SUFFIX ".lib")
  endif()
endif()

#build list of modules available for the OpenCV user
set(OpenCV_LIB_COMPONENTS "")
foreach(m ${OPENCV_MODULES_PUBLIC})
  list(INSERT OpenCV_LIB_COMPONENTS 0 ${${m}_MODULE_DEPS_OPT} ${m})
endforeach()
ocv_list_unique(OpenCV_LIB_COMPONENTS)
set(OPENCV_MODULES_CONFIGCMAKE ${OpenCV_LIB_COMPONENTS})
ocv_list_filterout(OpenCV_LIB_COMPONENTS "^opencv_")
if(OpenCV_LIB_COMPONENTS)
  list(REMOVE_ITEM OPENCV_MODULES_CONFIGCMAKE ${OpenCV_LIB_COMPONENTS})
endif()

if(BUILD_FAT_JAVA_LIB AND HAVE_opencv_java)
  list(APPEND OPENCV_MODULES_CONFIGCMAKE opencv_java)
endif()

# -------------------------------------------------------------------------------------------
#  Part 1/3: ${BIN_DIR}/OpenCVConfig.cmake              -> For use *without* "make install"
# -------------------------------------------------------------------------------------------
set(OpenCV_INCLUDE_DIRS_CONFIGCMAKE "\"${OPENCV_CONFIG_FILE_INCLUDE_DIR}\" \"${OpenCV_SOURCE_DIR}/include\" \"${OpenCV_SOURCE_DIR}/include/opencv\"")

set(OpenCV2_INCLUDE_DIRS_CONFIGCMAKE "")
foreach(m ${OPENCV_MODULES_BUILD})
  if(EXISTS "${OPENCV_MODULE_${m}_LOCATION}/include")
    list(APPEND OpenCV2_INCLUDE_DIRS_CONFIGCMAKE "${OPENCV_MODULE_${m}_LOCATION}/include")
  endif()
endforeach()

if(ANDROID AND NOT BUILD_SHARED_LIBS AND HAVE_TBB)
  #export TBB headers location because static linkage of TBB might be troublesome if application wants to use TBB itself
  list(APPEND OpenCV2_INCLUDE_DIRS_CONFIGCMAKE ${TBB_INCLUDE_DIRS})
endif()

set(modules_file_suffix "")
if(ANDROID)
  # the REPLACE here is needed, because OpenCVModules_armeabi.cmake includes
  # OpenCVModules_armeabi-*.cmake, which would match OpenCVModules_armeabi-v7a*.cmake.
  string(REPLACE - _ modules_file_suffix "_${ANDROID_NDK_ABI_NAME}")
endif()

export(TARGETS ${OpenCVModules_TARGETS} FILE "${CMAKE_BINARY_DIR}/OpenCVModules${modules_file_suffix}.cmake")

if(TARGET ippicv)
  set(USE_IPPICV TRUE)
  file(RELATIVE_PATH INSTALL_PATH_RELATIVE_IPPICV ${CMAKE_BINARY_DIR} ${IPPICV_LOCATION_PATH})
else()
  set(USE_IPPICV FALSE)
  set(INSTALL_PATH_RELATIVE_IPPICV "non-existed-path")
endif()

configure_file("${OpenCV_SOURCE_DIR}/cmake/templates/OpenCVConfig.cmake.in" "${CMAKE_BINARY_DIR}/OpenCVConfig.cmake" @ONLY)
#support for version checking when finding opencv. find_package(OpenCV 2.3.1 EXACT) should now work.
configure_file("${OpenCV_SOURCE_DIR}/cmake/templates/OpenCVConfig-version.cmake.in" "${CMAKE_BINARY_DIR}/OpenCVConfig-version.cmake" @ONLY)

# --------------------------------------------------------------------------------------------
#  Part 2/3: ${BIN_DIR}/unix-install/OpenCVConfig.cmake -> For use *with* "make install"
# -------------------------------------------------------------------------------------------
set(OpenCV_INCLUDE_DIRS_CONFIGCMAKE "\"\${OpenCV_INSTALL_PATH}/${OPENCV_INCLUDE_INSTALL_PATH}/opencv" "\${OpenCV_INSTALL_PATH}/${OPENCV_INCLUDE_INSTALL_PATH}\"")

set(OpenCV2_INCLUDE_DIRS_CONFIGCMAKE "\"\"")
set(OpenCV_3RDPARTY_LIB_DIRS_CONFIGCMAKE "\"\${OpenCV_INSTALL_PATH}/${OPENCV_3P_LIB_INSTALL_PATH}\"")

if(UNIX) # ANDROID configuration is created here also
  #http://www.vtk.org/Wiki/CMake/Tutorials/Packaging reference
  # For a command "find_package(<name> [major[.minor]] [EXACT] [REQUIRED|QUIET])"
  # cmake will look in the following dir on unix:
  #                <prefix>/(share|lib)/cmake/<name>*/                     (U)
  #                <prefix>/(share|lib)/<name>*/                           (U)
  #                <prefix>/(share|lib)/<name>*/(cmake|CMake)/             (U)
  if(USE_IPPICV)
    file(RELATIVE_PATH INSTALL_PATH_RELATIVE_IPPICV "${CMAKE_INSTALL_PREFIX}/${OPENCV_CONFIG_INSTALL_PATH}/" ${IPPICV_INSTALL_PATH})
  endif()
  configure_file("${OpenCV_SOURCE_DIR}/cmake/templates/OpenCVConfig.cmake.in" "${CMAKE_BINARY_DIR}/unix-install/OpenCVConfig.cmake" @ONLY)
  configure_file("${OpenCV_SOURCE_DIR}/cmake/templates/OpenCVConfig-version.cmake.in" "${CMAKE_BINARY_DIR}/unix-install/OpenCVConfig-version.cmake" @ONLY)
  install(FILES "${CMAKE_BINARY_DIR}/unix-install/OpenCVConfig.cmake" DESTINATION ${OPENCV_CONFIG_INSTALL_PATH}/ COMPONENT dev)
  install(FILES ${CMAKE_BINARY_DIR}/unix-install/OpenCVConfig-version.cmake DESTINATION ${OPENCV_CONFIG_INSTALL_PATH}/ COMPONENT dev)
  install(EXPORT OpenCVModules DESTINATION ${OPENCV_CONFIG_INSTALL_PATH}/ FILE OpenCVModules${modules_file_suffix}.cmake COMPONENT dev)
endif()

if(ANDROID)
  install(FILES "${OpenCV_SOURCE_DIR}/platforms/android/android.toolchain.cmake" DESTINATION ${OPENCV_CONFIG_INSTALL_PATH}/ COMPONENT dev)
endif()

# --------------------------------------------------------------------------------------------
#  Part 3/3: ${BIN_DIR}/win-install/OpenCVConfig.cmake  -> For use within binary installers/packages
# --------------------------------------------------------------------------------------------
if(WIN32)
  set(OpenCV_INCLUDE_DIRS_CONFIGCMAKE "\"\${OpenCV_CONFIG_PATH}/include\" \"\${OpenCV_CONFIG_PATH}/include/opencv\"")
  set(OpenCV2_INCLUDE_DIRS_CONFIGCMAKE "\"\"")

  exec_program(mkdir ARGS "-p \"${CMAKE_BINARY_DIR}/win-install/\"" OUTPUT_VARIABLE RET_VAL)
  if(USE_IPPICV)
    if(BUILD_SHARED_LIBS)
      file(RELATIVE_PATH INSTALL_PATH_RELATIVE_IPPICV "${CMAKE_INSTALL_PREFIX}/${OpenCV_INSTALL_BINARIES_PREFIX}lib" ${IPPICV_INSTALL_PATH})
    else()
      file(RELATIVE_PATH INSTALL_PATH_RELATIVE_IPPICV "${CMAKE_INSTALL_PREFIX}/${OpenCV_INSTALL_BINARIES_PREFIX}staticlib" ${IPPICV_INSTALL_PATH})
    endif()
  endif()
  configure_file("${OpenCV_SOURCE_DIR}/cmake/templates/OpenCVConfig.cmake.in" "${CMAKE_BINARY_DIR}/win-install/OpenCVConfig.cmake" @ONLY)
  configure_file("${OpenCV_SOURCE_DIR}/cmake/templates/OpenCVConfig-version.cmake.in" "${CMAKE_BINARY_DIR}/win-install/OpenCVConfig-version.cmake" @ONLY)
  if (CMAKE_HOST_SYSTEM_NAME MATCHES Windows)
    if(BUILD_SHARED_LIBS)
      install(FILES "${CMAKE_BINARY_DIR}/win-install/OpenCVConfig.cmake" DESTINATION "${OpenCV_INSTALL_BINARIES_PREFIX}lib" COMPONENT dev)
      install(EXPORT OpenCVModules DESTINATION "${OpenCV_INSTALL_BINARIES_PREFIX}lib" FILE OpenCVModules${modules_file_suffix}.cmake COMPONENT dev)
    else()
      install(FILES "${CMAKE_BINARY_DIR}/win-install/OpenCVConfig.cmake" DESTINATION "${OpenCV_INSTALL_BINARIES_PREFIX}staticlib" COMPONENT dev)
      install(EXPORT OpenCVModules DESTINATION "${OpenCV_INSTALL_BINARIES_PREFIX}staticlib" FILE OpenCVModules${modules_file_suffix}.cmake COMPONENT dev)
    endif()
    install(FILES "${CMAKE_BINARY_DIR}/win-install/OpenCVConfig-version.cmake" DESTINATION "${CMAKE_INSTALL_PREFIX}" COMPONENT dev)
    install(FILES "${OpenCV_SOURCE_DIR}/cmake/OpenCVConfig.cmake" DESTINATION "${CMAKE_INSTALL_PREFIX}/" COMPONENT dev)
  else ()
    install(FILES "${CMAKE_BINARY_DIR}/win-install/OpenCVConfig.cmake" DESTINATION "${OpenCV_INSTALL_BINARIES_PREFIX}lib/cmake/opencv-${OPENCV_VERSION}" COMPONENT dev)
    install(EXPORT OpenCVModules DESTINATION "${OpenCV_INSTALL_BINARIES_PREFIX}lib/cmake/opencv-${OPENCV_VERSION}" FILE OpenCVModules${modules_file_suffix}.cmake COMPONENT dev)
    install(FILES "${CMAKE_BINARY_DIR}/win-install/OpenCVConfig-version.cmake" DESTINATION "${CMAKE_INSTALL_PREFIX}/lib/cmake/opencv-${OPENCV_VERSION}" COMPONENT dev)
  endif ()
endif()