cmake/OpenCVGenPkgconfig.cmake

   1 if(MSVC OR IOS)
   2   return()
   3 endif()
   4
   5 # --------------------------------------------------------------------------------------------
   6 # according to man pkg-config
   7 #  The package name specified on the pkg-config command line is defined to
   8 #      be the name of the metadata file, minus the .pc extension. If a library
   9 #      can install multiple versions simultaneously, it must give each version
  10 #      its own name (for example, GTK 1.2 might have the package  name  "gtk+"
  11 #      while GTK 2.0 has "gtk+-2.0").
  12 #
  13 # ${BIN_DIR}/unix-install/opencv.pc -> For use *with* "make install"
  14 # -------------------------------------------------------------------------------------------
  15
  16 macro(fix_prefix lst isown)
  17   set(_lst)
  18   foreach(item ${${lst}})
  19     if(DEFINED TARGET_LOCATION_${item})
  20       set(item "${TARGET_LOCATION_${item}}")
  21       if(${isown})
  22         get_filename_component(item "${item}" NAME)
  23         ocv_get_libname(item "${item}")
  24       endif()
  25     endif()
  26     if(item MATCHES "^-l")
  27       list(APPEND _lst "${item}")
  28     elseif(item MATCHES "^-framework") # MacOS framework (assume single entry "-framework OpenCL")
  29       list(APPEND _lst "${item}")
  30     elseif(item MATCHES "[\\/]")
  31       get_filename_component(libdir "${item}" PATH)
  32       get_filename_component(_libname "${item}" NAME)
  33       ocv_get_libname(libname "${_libname}")
  34       list(APPEND _lst "-L${libdir}" "-l${libname}")
  35     else()
  36       list(APPEND _lst "-l${item}")
  37     endif()
  38   endforeach()
  39   set(${lst} ${_lst})
  40   unset(_lst)
  41 endmacro()
  42
  43 if(NOT DEFINED CMAKE_HELPER_SCRIPT)
  44
  45 if(INSTALL_TO_MANGLED_PATHS)
  46   set(OPENCV_PC_FILE_NAME "opencv-${OPENCV_VERSION}.pc")
  47 else()
  48   set(OPENCV_PC_FILE_NAME opencv.pc)
  49 endif()
  50
  51 # build the list of opencv libs and dependencies for all modules
  52 ocv_get_all_libs(_modules _extra _3rdparty)
  53
  54 #build the list of components
  55
  56 # Note:
  57 #   when linking against static libraries, if libfoo depends on libbar, then
  58 #   libfoo must come first in the linker flags.
  59
  60 # world is a special target whose library should come first,
  61 # especially for static link.
  62 if(_modules MATCHES "opencv_world")
  63   set(_modules "opencv_world")
  64 endif()
  65
  66 set(HELPER_SCRIPT "")
  67 ocv_cmake_script_append_var(HELPER_SCRIPT
  68     BUILD_SHARED_LIBS
  69     CMAKE_BINARY_DIR
  70     CMAKE_INSTALL_PREFIX
  71     OpenCV_SOURCE_DIR
  72     OPENCV_PC_FILE_NAME
  73     OPENCV_VERSION_PLAIN
  74     OPENCV_LIB_INSTALL_PATH
  75     OPENCV_INCLUDE_INSTALL_PATH
  76     OPENCV_3P_LIB_INSTALL_PATH
  77
  78     _modules
  79     _extra
  80     _3rdparty
  81 )
  82
  83 foreach(item ${_modules} ${_extra} ${_3rdparty})
  84   if(TARGET ${item})
  85     set(HELPER_SCRIPT "${HELPER_SCRIPT}
  86 set(TARGET_LOCATION_${item} \"$<TARGET_FILE:${item}>\")
  87 ")
  88   endif()
  89 endforeach()
  90
  91 set(CMAKE_HELPER_SCRIPT "${CMAKE_BINARY_DIR}/OpenCVGenPkgConfig.info.cmake")
  92 file(GENERATE OUTPUT "${CMAKE_HELPER_SCRIPT}" CONTENT "${HELPER_SCRIPT}")
  93
  94 add_custom_target(developer_scripts)
  95 add_custom_command(
  96   OUTPUT "${CMAKE_BINARY_DIR}/unix-install/${OPENCV_PC_FILE_NAME}"
  97   COMMAND ${CMAKE_COMMAND} "-DCMAKE_HELPER_SCRIPT=${CMAKE_HELPER_SCRIPT}" -P "${OpenCV_SOURCE_DIR}/cmake/OpenCVGenPkgconfig.cmake"
  98   DEPENDS "${CMAKE_BINARY_DIR}/OpenCVGenPkgConfig.info.cmake"
  99           "${OpenCV_SOURCE_DIR}/cmake/OpenCVGenPkgconfig.cmake"
 100   COMMENT "Generate ${OPENCV_PC_FILE_NAME}"
 101 )
 102 add_custom_target(gen-pkgconfig ALL SOURCES "${CMAKE_BINARY_DIR}/unix-install/${OPENCV_PC_FILE_NAME}")
 103 add_dependencies(developer_scripts gen-pkgconfig)
 104
 105
 106 if(UNIX AND NOT ANDROID)
 107   install(FILES ${CMAKE_BINARY_DIR}/unix-install/${OPENCV_PC_FILE_NAME} DESTINATION ${OPENCV_LIB_INSTALL_PATH}/pkgconfig COMPONENT dev)
 108 endif()
 109
 110 # =============================================================================
 111 else() # DEFINED CMAKE_HELPER_SCRIPT
 112
 113 cmake_minimum_required(VERSION 2.8.12.2)
 114 cmake_policy(SET CMP0012 NEW)
 115 include("${CMAKE_HELPER_SCRIPT}")
 116 include("${OpenCV_SOURCE_DIR}/cmake/OpenCVUtils.cmake")
 117
 118 fix_prefix(_modules 1)
 119 fix_prefix(_extra 0)
 120 fix_prefix(_3rdparty 1)
 121
 122 ocv_list_unique(_modules)
 123 ocv_list_unique(_extra)
 124 ocv_list_unique(_3rdparty)
 125
 126 set(OPENCV_PC_LIBS
 127   "-L\${exec_prefix}/${OPENCV_LIB_INSTALL_PATH}"
 128   "${_modules}"
 129 )
 130 if(BUILD_SHARED_LIBS)
 131   set(OPENCV_PC_LIBS_PRIVATE "${_extra}")
 132 else()
 133   set(OPENCV_PC_LIBS_PRIVATE
 134     "-L\${exec_prefix}/${OPENCV_3P_LIB_INSTALL_PATH}"
 135     "${_3rdparty}"
 136     "${_extra}"
 137   )
 138 endif()
 139 string(REPLACE ";" " " OPENCV_PC_LIBS "${OPENCV_PC_LIBS}")
 140 string(REPLACE ";" " " OPENCV_PC_LIBS_PRIVATE "${OPENCV_PC_LIBS_PRIVATE}")
 141
 142 #generate the .pc file
 143 set(prefix      "${CMAKE_INSTALL_PREFIX}")
 144 set(exec_prefix "\${prefix}")
 145 set(libdir      "\${exec_prefix}/${OPENCV_LIB_INSTALL_PATH}")
 146 set(includedir  "\${prefix}/${OPENCV_INCLUDE_INSTALL_PATH}")
 147
 148 configure_file("${OpenCV_SOURCE_DIR}/cmake/templates/opencv-XXX.pc.in"
 149                "${CMAKE_BINARY_DIR}/unix-install/${OPENCV_PC_FILE_NAME}"
 150                @ONLY)
 151
 152 endif() # DEFINED CMAKE_HELPER_SCRIPT