Modules/FindGTK2.cmake

   1 # - FindGTK2.cmake
   2 # This module can find the GTK2 widget libraries and several of its other
   3 # optional components like gtkmm, glade, and glademm.
   4 #
   5 # NOTE: If you intend to use version checking, CMake 2.6.2 or later is
   6 #       required.
   7 #
   8 # Specify one or more of the following components
   9 # as you call this find module. See example below.
  10 #
  11 #   gtk
  12 #   gtkmm
  13 #   glade
  14 #   glademm
  15 #
  16 # The following variables will be defined for your use
  17 #
  18 #   GTK2_FOUND - Were all of your specified components found?
  19 #   GTK2_INCLUDE_DIRS - All include directories
  20 #   GTK2_LIBRARIES - All libraries
  21 #
  22 #   GTK2_VERSION - The version of GTK2 found (x.y.z)
  23 #   GTK2_MAJOR_VERSION - The major version of GTK2
  24 #   GTK2_MINOR_VERSION - The minor version of GTK2
  25 #   GTK2_PATCH_VERSION - The patch version of GTK2
  26 #
  27 # Optional variables you can define prior to calling this module:
  28 #
  29 #   GTK2_DEBUG - Enables verbose debugging of the module
  30 #   GTK2_SKIP_MARK_AS_ADVANCED - Disable marking cache variables as advanced
  31 #
  32 #=================
  33 # Example Usage:
  34 #
  35 #   Call find_package() once, here are some examples to pick from:
  36 #
  37 #   Require GTK 2.6 or later
  38 #       find_package(GTK2 2.6 REQUIRED gtk)
  39 #
  40 #   Require GTK 2.10 or later and Glade
  41 #       find_package(GTK2 2.10 REQUIRED gtk glade)
  42 #
  43 #   Search for GTK/GTKMM 2.8 or later
  44 #       find_package(GTK2 2.8 COMPONENTS gtk gtkmm)
  45 #
  46 #   if(GTK2_FOUND)
  47 #      include_directories(${GTK2_INCLUDE_DIRS})
  48 #      add_executable(mygui mygui.cc)
  49 #      target_link_libraries(mygui ${GTK2_LIBRARIES})
  50 #   endif()
  51 #
  52 #=================
  53 #
  54 # Copyright (c) 2008-2009
  55 #     Philip Lowman <philip@yhbt.com>
  56 #
  57 # Version 0.7 (3/22/09)
  58 #   * Checked into CMake CVS
  59 #   * Added versioning support
  60 #   * Module now defaults to searching for GTK if COMPONENTS not specified.
  61 #   * Added HKCU prior to HKLM registry key and GTKMM specific environment
  62 #      variable as per mailing list discussion.
  63 #   * Added lib64 to include search path and a few other search paths where GTK
  64 #      may be installed on Unix systems.
  65 #   * Switched to lowercase CMake commands
  66 #   * Prefaced internal variables with _GTK2 to prevent collision
  67 #   * Changed internal macros to functions
  68 #   * Enhanced documentation
  69 # Version 0.6 (1/8/08)
  70 #   Added GTK2_SKIP_MARK_AS_ADVANCED option
  71 # Version 0.5 (12/19/08)
  72 #   Second release to cmake mailing list
  73 #
  74 # Redistribution and use is allowed according to the terms of the BSD license.
  75 # For details see the accompanying COPYING-CMAKE-SCRIPTS file.
  76
  77
  78 #=============================================================
  79 # _GTK2_GET_VERSION
  80 # Internal function to parse the version number in gtkversion.h
  81 #   _OUT_major = Major version number
  82 #   _OUT_minor = Minor version number
  83 #   _OUT_micro = Micro version number
  84 #   _gtkversion_hdr = Header file to parse
  85 #=============================================================
  86 function(_GTK2_GET_VERSION _OUT_major _OUT_minor _OUT_micro _gtkversion_hdr)
  87     file(READ ${_gtkversion_hdr} _contents)
  88     if(_contents)
  89         string(REGEX REPLACE ".*#define GTK_MAJOR_VERSION[ \t]+\\(([0-9]+)\\).*" "\\1" ${_OUT_major} "${_contents}")
  90         string(REGEX REPLACE ".*#define GTK_MINOR_VERSION[ \t]+\\(([0-9]+)\\).*" "\\1" ${_OUT_minor} "${_contents}")
  91         string(REGEX REPLACE ".*#define GTK_MICRO_VERSION[ \t]+\\(([0-9]+)\\).*" "\\1" ${_OUT_micro} "${_contents}")
  92
  93         if(NOT ${_OUT_major} MATCHES "[0-9]+")
  94             message(FATAL_ERROR "Version parsing failed for GTK2_MAJOR_VERSION!")
  95         endif()
  96         if(NOT ${_OUT_minor} MATCHES "[0-9]+")
  97             message(FATAL_ERROR "Version parsing failed for GTK2_MINOR_VERSION!")
  98         endif()
  99         if(NOT ${_OUT_micro} MATCHES "[0-9]+")
 100             message(FATAL_ERROR "Version parsing failed for GTK2_MICRO_VERSION!")
 101         endif()
 102
 103         set(${_OUT_major} ${${_OUT_major}} PARENT_SCOPE)
 104         set(${_OUT_minor} ${${_OUT_minor}} PARENT_SCOPE)
 105         set(${_OUT_micro} ${${_OUT_micro}} PARENT_SCOPE)
 106     else()
 107         message(FATAL_ERROR "Include file ${_gtkversion_hdr} does not exist")
 108     endif()
 109 endfunction()
 110
 111 #=============================================================
 112 # _GTK2_FIND_INCLUDE_DIR
 113 # Internal function to find the GTK include directories
 114 #   _var = variable to set
 115 #   _hdr = header file to look for
 116 #=============================================================
 117 function(_GTK2_FIND_INCLUDE_DIR _var _hdr)
 118
 119     if(GTK2_DEBUG)
 120         message(STATUS "[FindGTK2.cmake:${CMAKE_CURRENT_LIST_LINE}] "
 121                        "_GTK2_FIND_INCLUDE_DIR( ${_var} ${_hdr} )")
 122     endif()
 123
 124     set(_relatives
 125         # FIXME
 126         glibmm-2.4
 127         glib-2.0
 128         atk-1.0
 129         atkmm-1.6
 130         cairo
 131         cairomm-1.0
 132         gdkmm-2.4
 133         giomm-2.4
 134         gtk-2.0
 135         gtkmm-2.4
 136         libglade-2.0
 137         libglademm-2.4
 138         pango-1.0
 139         pangomm-1.4
 140         sigc++-2.0
 141     )
 142
 143     set(_suffixes)
 144     foreach(_d ${_relatives})
 145         list(APPEND _suffixes ${_d})
 146         list(APPEND _suffixes ${_d}/include) # for /usr/lib/gtk-2.0/include
 147     endforeach()
 148
 149     if(GTK2_DEBUG)
 150         message(STATUS "[FindGTK2.cmake:${CMAKE_CURRENT_LIST_LINE}]     "
 151                        "include suffixes = ${_suffixes}")
 152     endif()
 153
 154     find_path(${_var} ${_hdr}
 155         PATHS
 156             /usr/local/lib64
 157             /usr/local/lib
 158             /usr/lib64
 159             /usr/lib
 160             /opt/gnome/include
 161             /opt/gnome/lib
 162             /opt/openwin/include
 163             /usr/openwin/lib
 164             $ENV{GTKMM_BASEPATH}/include
 165             $ENV{GTKMM_BASEPATH}/lib
 166             [HKEY_CURRENT_USER\\SOFTWARE\\gtkmm\\2.4;Path]/include
 167             [HKEY_CURRENT_USER\\SOFTWARE\\gtkmm\\2.4;Path]/lib
 168             [HKEY_LOCAL_MACHINE\\SOFTWARE\\gtkmm\\2.4;Path]/include
 169             [HKEY_LOCAL_MACHINE\\SOFTWARE\\gtkmm\\2.4;Path]/lib
 170         PATH_SUFFIXES
 171             ${_suffixes}
 172     )
 173
 174     if(${_var})
 175         set(GTK2_INCLUDE_DIRS ${GTK2_INCLUDE_DIRS} ${${_var}} PARENT_SCOPE)
 176         if(NOT GTK2_SKIP_MARK_AS_ADVANCED)
 177             mark_as_advanced(${_var})
 178         endif()
 179     endif()
 180
 181 endfunction(_GTK2_FIND_INCLUDE_DIR)
 182
 183 #=============================================================
 184 # _GTK2_FIND_LIBRARY
 185 # Internal function to find libraries packaged with GTK2
 186 #   _var = library variable to create
 187 #=============================================================
 188 function(_GTK2_FIND_LIBRARY _var _lib _expand_vc _append_version)
 189
 190     if(GTK2_DEBUG)
 191         message(STATUS "[FindGTK2.cmake:${CMAKE_CURRENT_LIST_LINE}] "
 192                        "_GTK2_FIND_LIBRARY( ${_var} ${_lib} ${_expand_vc} ${_append_version} )")
 193     endif()
 194
 195     # Not GTK versions per se but the versions encoded into Windows
 196     # import libraries (GtkMM 2.14.1 has a gtkmm-vc80-2_4.lib for example)
 197     # Also the MSVC libraries use _ for . (this is handled below)
 198     set(_versions 2.20 2.18 2.16 2.14 2.12
 199                   2.10  2.8  2.6  2.4  2.2 2.0
 200                   1.20 1.18 1.16 1.14 1.12
 201                   1.10  1.8  1.6  1.4  1.2 1.0)
 202
 203     set(_library)
 204     set(_library_d)
 205
 206     set(_library ${_lib})
 207
 208     if(_expand_vc)
 209         # Add vc80/vc90 midfixes
 210         if(MSVC80)
 211             set(_library   ${_library}-vc80)
 212             set(_library_d ${_library}-d)
 213         elseif(MSVC90)
 214             set(_library   ${_library}-vc90)
 215             set(_library_d ${_library}-d)
 216         endif()
 217     endif()
 218
 219     if(GTK2_DEBUG)
 220         message(STATUS "[FindGTK2.cmake:${CMAKE_CURRENT_LIST_LINE}]     "
 221                        "After midfix addition = ${_library} and ${_library_d}")
 222     endif()
 223
 224     set(_lib_list)
 225     set(_libd_list)
 226     if(_append_version)
 227         foreach(_ver ${_versions})
 228             list(APPEND _lib_list  "${_library}-${_ver}")
 229             list(APPEND _libd_list "${_library_d}-${_ver}")
 230         endforeach()
 231     else()
 232         set(_lib_list ${_library})
 233         set(_libd_list ${_library_d})
 234     endif()
 235
 236     if(GTK2_DEBUG)
 237         message(STATUS "[FindGTK2.cmake:${CMAKE_CURRENT_LIST_LINE}]     "
 238                        "library list = ${_lib_list} and library debug list = ${_libd_list}")
 239     endif()
 240
 241     # For some silly reason the MSVC libraries use _ instead of .
 242     # in the version fields
 243     if(_expand_vc AND MSVC)
 244         set(_no_dots_lib_list)
 245         set(_no_dots_libd_list)
 246         foreach(_l ${_lib_list})
 247             string(REPLACE "." "_" _no_dots_library ${_l})
 248             list(APPEND _no_dots_lib_list ${_no_dots_library})
 249         endforeach()
 250         # And for debug
 251         set(_no_dots_libsd_list)
 252         foreach(_l ${_libd_list})
 253             string(REPLACE "." "_" _no_dots_libraryd ${_l})
 254             list(APPEND _no_dots_libd_list ${_no_dots_libraryd})
 255         endforeach()
 256
 257         # Copy list back to original names
 258         set(_lib_list ${_no_dots_lib_list})
 259         set(_libd_list ${_no_dots_libd_list})
 260     endif()
 261
 262     if(GTK2_DEBUG)
 263         message(STATUS "[FindGTK2.cmake:${CMAKE_CURRENT_LIST_LINE}]     "
 264                        "While searching for ${_var}, our proposed library list is ${_lib_list}")
 265     endif()
 266
 267     find_library(${_var}
 268         NAMES ${_lib_list}
 269         PATHS
 270             /opt/gnome/lib
 271             /opt/gnome/lib64
 272             /usr/openwin/lib
 273             /usr/openwin/lib64
 274             $ENV{GTKMM_BASEPATH}/lib
 275             [HKEY_CURRENT_USER\\SOFTWARE\\gtkmm\\2.4;Path]/lib
 276             [HKEY_LOCAL_MACHINE\\SOFTWARE\\gtkmm\\2.4;Path]/lib
 277         )
 278
 279     if(_expand_vc AND MSVC)
 280         if(GTK2_DEBUG)
 281             message(STATUS "[FindGTK2.cmake:${CMAKE_CURRENT_LIST_LINE}]     "
 282                            "While searching for ${_var}_DEBUG our proposed library list is ${_libd_list}")
 283         endif()
 284
 285         find_library(${_var}_DEBUG
 286             NAMES ${_libd_list}
 287             PATHS
 288             $ENV{GTKMM_BASEPATH}/lib
 289             [HKEY_CURRENT_USER\\SOFTWARE\\gtkmm\\2.4;Path]/lib
 290             [HKEY_LOCAL_MACHINE\\SOFTWARE\\gtkmm\\2.4;Path]/lib
 291         )
 292
 293         if(${_var} AND ${_var}_DEBUG)
 294             if(NOT GTK2_SKIP_MARK_AS_ADVANCED)
 295                 mark_as_advanced(${_var}_DEBUG)
 296             endif()
 297             set(GTK2_LIBRARIES ${GTK2_LIBRARIES} optimized ${${_var}} debug ${${_var}_DEBUG})
 298             set(GTK2_LIBRARIES ${GTK2_LIBRARIES} PARENT_SCOPE)
 299         endif()
 300     else()
 301         if(NOT GTK2_SKIP_MARK_AS_ADVANCED)
 302             mark_as_advanced(${_var})
 303         endif()
 304         set(GTK2_LIBRARIES ${GTK2_LIBRARIES} ${${_var}})
 305         set(GTK2_LIBRARIES ${GTK2_LIBRARIES} PARENT_SCOPE)
 306         # Set debug to release
 307         set(${_var}_DEBUG ${${_var}})
 308         set(${_var}_DEBUG ${${_var}} PARENT_SCOPE)
 309     endif()
 310 endfunction(_GTK2_FIND_LIBRARY)
 311
 312 #=============================================================
 313
 314 #
 315 # main()
 316 #
 317
 318 set(GTK2_FOUND)
 319 set(GTK2_INCLUDE_DIRS)
 320 set(GTK2_LIBRARIES)
 321
 322 if(NOT GTK2_FIND_COMPONENTS)
 323     # Assume they only want GTK
 324     set(GTK2_FIND_COMPONENTS gtk)
 325 endif()
 326
 327 #
 328 # If specified, enforce version number
 329 #
 330 if(GTK2_FIND_VERSION)
 331     cmake_minimum_required(VERSION 2.6.2)
 332     set(GTK2_FAILED_VERSION_CHECK true)
 333     if(GTK2_DEBUG)
 334         message(STATUS "[FindGTK2.cmake:${CMAKE_CURRENT_LIST_LINE}] "
 335                        "Searching for version ${GTK2_FIND_VERSION}")
 336     endif()
 337     _GTK2_FIND_INCLUDE_DIR(GTK2_GTK_INCLUDE_DIR gtk/gtk.h)
 338     if(GTK2_GTK_INCLUDE_DIR)
 339         _GTK2_GET_VERSION(GTK2_MAJOR_VERSION
 340                           GTK2_MINOR_VERSION
 341                           GTK2_PATCH_VERSION
 342                           ${GTK2_GTK_INCLUDE_DIR}/gtk/gtkversion.h)
 343         set(GTK2_VERSION
 344             ${GTK2_MAJOR_VERSION}.${GTK2_MINOR_VERSION}.${GTK2_PATCH_VERSION})
 345         if(GTK2_FIND_VERSION_EXACT)
 346             if(GTK2_VERSION VERSION_EQUAL GTK2_FIND_VERSION)
 347                 set(GTK2_FAILED_VERSION_CHECK false)
 348             endif()
 349         else()
 350             if(GTK2_VERSION VERSION_EQUAL   GTK2_FIND_VERSION OR
 351                GTK2_VERSION VERSION_GREATER GTK2_FIND_VERSION)
 352                 set(GTK2_FAILED_VERSION_CHECK false)
 353             endif()
 354         endif()
 355     else()
 356         # If we can't find the GTK include dir, we can't do version checking
 357         if(GTK2_FIND_REQUIRED AND NOT GTK2_FIND_QUIETLY)
 358             message(FATAL_ERROR "Could not find GTK2 include directory")
 359         endif()
 360         return()
 361     endif()
 362
 363     if(GTK2_FAILED_VERSION_CHECK)
 364         if(GTK2_FIND_REQUIRED AND NOT GTK2_FIND_QUIETLY)
 365             if(GTK2_FIND_VERSION_EXACT)
 366                 message(FATAL_ERROR "GTK2 version check failed.  Version ${GTK2_VERSION} was found, version ${GTK2_FIND_VERSION} is needed exactly.")
 367             else()
 368                 message(FATAL_ERROR "GTK2 version check failed.  Version ${GTK2_VERSION} was found, at least version ${GTK2_FIND_VERSION} is required")
 369             endif()
 370         endif()
 371
 372         # If the version check fails, exit out of the module here
 373         return()
 374     endif()
 375 endif()
 376
 377 #
 378 # Find all components
 379 #
 380
 381 foreach(_GTK2_component ${GTK2_FIND_COMPONENTS})
 382     if(_GTK2_component STREQUAL "gtk")
 383
 384         _GTK2_FIND_INCLUDE_DIR(GTK2_GLIB_INCLUDE_DIR glib.h)
 385         _GTK2_FIND_INCLUDE_DIR(GTK2_GLIBCONFIG_INCLUDE_DIR glibconfig.h)
 386         _GTK2_FIND_LIBRARY    (GTK2_GLIB_LIBRARY glib false true)
 387
 388         _GTK2_FIND_INCLUDE_DIR(GTK2_GDK_INCLUDE_DIR gdk/gdk.h)
 389         _GTK2_FIND_INCLUDE_DIR(GTK2_GDKCONFIG_INCLUDE_DIR gdkconfig.h)
 390         _GTK2_FIND_LIBRARY    (GTK2_GDK_LIBRARY gdk-x11 false true)
 391         _GTK2_FIND_LIBRARY    (GTK2_GDK_LIBRARY gdk-win32 false true)
 392
 393         _GTK2_FIND_INCLUDE_DIR(GTK2_GTK_INCLUDE_DIR gtk/gtk.h)
 394         _GTK2_FIND_LIBRARY    (GTK2_GTK_LIBRARY gtk-x11 false true)
 395         _GTK2_FIND_LIBRARY    (GTK2_GTK_LIBRARY gtk-win32 false true)
 396
 397         _GTK2_FIND_INCLUDE_DIR(GTK2_CAIRO_INCLUDE_DIR cairo.h)
 398         _GTK2_FIND_LIBRARY    (GTK2_CAIRO_LIBRARY cairo false false)
 399
 400         _GTK2_FIND_INCLUDE_DIR(GTK2_PANGO_INCLUDE_DIR pango/pango.h)
 401         _GTK2_FIND_LIBRARY    (GTK2_PANGO_LIBRARY pango false true)
 402
 403         _GTK2_FIND_INCLUDE_DIR(GTK2_ATK_INCLUDE_DIR atk/atk.h)
 404         _GTK2_FIND_LIBRARY    (GTK2_ATK_LIBRARY atk false true)
 405
 406         #elseif(_GTK2_component STREQUAL "gdk_pixbuf")
 407         #_GTK2_FIND_INCLUDE_DIR(GTK2_GDKPIXBUF_INCLUDE_DIR gdk-pixbuf/gdk-pixbuf.h)
 408         #_GTK2_FIND_LIBRARY    (GTK2_GDKPIXBUF_LIBRARY gdk_pixbuf false true)
 409
 410     elseif(_GTK2_component STREQUAL "gtkmm")
 411
 412         _GTK2_FIND_INCLUDE_DIR(GTK2_GLIBMM_INCLUDE_DIR glibmm.h)
 413         _GTK2_FIND_INCLUDE_DIR(GTK2_GLIBMMCONFIG_INCLUDE_DIR glibmmconfig.h)
 414         _GTK2_FIND_LIBRARY    (GTK2_GLIBMM_LIBRARY glibmm true true)
 415
 416         _GTK2_FIND_INCLUDE_DIR(GTK2_GDKMM_INCLUDE_DIR gdkmm.h)
 417         _GTK2_FIND_INCLUDE_DIR(GTK2_GDKMMCONFIG_INCLUDE_DIR gdkmmconfig.h)
 418         _GTK2_FIND_LIBRARY    (GTK2_GDKMM_LIBRARY gdkmm true true)
 419
 420         _GTK2_FIND_INCLUDE_DIR(GTK2_GTKMM_INCLUDE_DIR gtkmm.h)
 421         _GTK2_FIND_INCLUDE_DIR(GTK2_GTKMMCONFIG_INCLUDE_DIR gtkmmconfig.h)
 422         _GTK2_FIND_LIBRARY    (GTK2_GTKMM_LIBRARY gtkmm true true)
 423
 424         _GTK2_FIND_INCLUDE_DIR(GTK2_CAIROMM_INCLUDE_DIR cairomm/cairomm.h)
 425         _GTK2_FIND_LIBRARY    (GTK2_CAIROMM_LIBRARY cairomm true true)
 426
 427         _GTK2_FIND_INCLUDE_DIR(GTK2_PANGOMM_INCLUDE_DIR pangomm.h)
 428         _GTK2_FIND_LIBRARY    (GTK2_PANGOMM_LIBRARY pangomm true true)
 429
 430         _GTK2_FIND_INCLUDE_DIR(GTK2_SIGC++_INCLUDE_DIR sigc++/sigc++.h)
 431         _GTK2_FIND_INCLUDE_DIR(GTK2_SIGC++CONFIG_INCLUDE_DIR sigc++config.h)
 432         _GTK2_FIND_LIBRARY    (GTK2_SIGC++_LIBRARY sigc true true)
 433
 434         _GTK2_FIND_INCLUDE_DIR(GTK2_GIOMM_INCLUDE_DIR giomm.h)
 435         _GTK2_FIND_INCLUDE_DIR(GTK2_GIOMMCONFIG_INCLUDE_DIR giommconfig.h)
 436         _GTK2_FIND_LIBRARY    (GTK2_GIOMM_LIBRARY giomm true true)
 437
 438         _GTK2_FIND_INCLUDE_DIR(GTK2_ATKMM_INCLUDE_DIR atkmm.h)
 439         _GTK2_FIND_LIBRARY    (GTK2_ATKMM_LIBRARY atkmm true true)
 440
 441     elseif(_GTK2_component STREQUAL "glade")
 442
 443         _GTK2_FIND_INCLUDE_DIR(GTK2_GLADE_INCLUDE_DIR glade/glade.h)
 444         _GTK2_FIND_LIBRARY    (GTK2_GLADE_LIBRARY glade false true)
 445
 446     elseif(_GTK2_component STREQUAL "glademm")
 447
 448         _GTK2_FIND_INCLUDE_DIR(GTK2_GLADEMM_INCLUDE_DIR libglademm.h)
 449         _GTK2_FIND_INCLUDE_DIR(GTK2_GLADEMMCONFIG_INCLUDE_DIR libglademmconfig.h)
 450         _GTK2_FIND_LIBRARY    (GTK2_GLADEMM_LIBRARY glademm true true)
 451
 452     else()
 453         message(FATAL_ERROR "Unknown GTK2 component ${_component}")
 454     endif()
 455 endforeach()
 456
 457 #
 458 # Solve for the GTK2 version if we haven't already
 459 #
 460 if(NOT GTK2_FIND_VERSION AND GTK2_GTK_INCLUDE_DIR)
 461     _GTK2_GET_VERSION(GTK2_MAJOR_VERSION
 462                       GTK2_MINOR_VERSION
 463                       GTK2_PATCH_VERSION
 464                       ${GTK2_GTK_INCLUDE_DIR}/gtk/gtkversion.h)
 465     set(GTK2_VERSION ${GTK2_MAJOR_VERSION}.${GTK2_MINOR_VERSION}.${GTK2_PATCH_VERSION})
 466 endif()
 467
 468 #
 469 # Try to enforce components
 470 #
 471
 472 set(_GTK2_did_we_find_everything true)  # This gets set to GTK2_FOUND
 473
 474 include(FindPackageHandleStandardArgs)
 475
 476 foreach(_GTK2_component ${GTK2_FIND_COMPONENTS})
 477     string(TOUPPER ${_GTK2_component} _COMPONENT_UPPER)
 478
 479     if(_GTK2_component STREQUAL "gtk")
 480         FIND_PACKAGE_HANDLE_STANDARD_ARGS(GTK2_${_COMPONENT_UPPER} "Some or all of the gtk libraries were not found."
 481             GTK2_GTK_LIBRARY
 482             GTK2_GTK_INCLUDE_DIR
 483
 484             GTK2_GLIB_INCLUDE_DIR
 485             GTK2_GLIBCONFIG_INCLUDE_DIR
 486             GTK2_GLIB_LIBRARY
 487
 488             GTK2_GDK_INCLUDE_DIR
 489             GTK2_GDKCONFIG_INCLUDE_DIR
 490             GTK2_GDK_LIBRARY
 491         )
 492     elseif(_GTK2_component STREQUAL "gtkmm")
 493         FIND_PACKAGE_HANDLE_STANDARD_ARGS(GTK2_${_COMPONENT_UPPER} "Some or all of the gtkmm libraries were not found."
 494             GTK2_GTKMM_LIBRARY
 495             GTK2_GTKMM_INCLUDE_DIR
 496             GTK2_GTKMMCONFIG_INCLUDE_DIR
 497
 498             GTK2_GLIBMM_INCLUDE_DIR
 499             GTK2_GLIBMMCONFIG_INCLUDE_DIR
 500             GTK2_GLIBMM_LIBRARY
 501
 502             GTK2_GDKMM_INCLUDE_DIR
 503             GTK2_GDKMMCONFIG_INCLUDE_DIR
 504             GTK2_GDKMM_LIBRARY
 505         )
 506     elseif(_GTK2_component STREQUAL "glade")
 507         FIND_PACKAGE_HANDLE_STANDARD_ARGS(GTK2_${_COMPONENT_UPPER} "The glade library was not found."
 508             GTK2_GLADE_LIBRARY
 509             GTK2_GLADE_INCLUDE_DIR
 510         )
 511     elseif(_GTK2_component STREQUAL "glademm")
 512         FIND_PACKAGE_HANDLE_STANDARD_ARGS(GTK2_${_COMPONENT_UPPER} "The glademm library was not found."
 513             GTK2_GLADEMM_LIBRARY
 514             GTK2_GLADEMM_INCLUDE_DIR
 515             GTK2_GLADEMMCONFIG_INCLUDE_DIR
 516         )
 517     endif()
 518
 519     if(NOT GTK2_${_COMPONENT_UPPER}_FOUND)
 520         set(_GTK2_did_we_find_everything false)
 521     endif()
 522 endforeach()
 523
 524 if(_GTK2_did_we_find_everything AND NOT GTK2_VERSION_CHECK_FAILED)
 525     set(GTK2_FOUND true)
 526 else()
 527     # Unset our variables.
 528     set(GTK2_FOUND false)
 529     set(GTK2_VERSION)
 530     set(GTK2_VERSION_MAJOR)
 531     set(GTK2_VERSION_MINOR)
 532     set(GTK2_VERSION_PATCH)
 533     set(GTK2_INCLUDE_DIRS)
 534     set(GTK2_LIBRARIES)
 535 endif()
 536
 537 if(GTK2_INCLUDE_DIRS)
 538    list(REMOVE_DUPLICATES GTK2_INCLUDE_DIRS)
 539 endif()
 540