findqt4.cmake

Gaussian Mixture Algorithm

                  QT4_CREATE_MOC_COMMAND(${_header} ${_moc} "${_moc_INCS}" "")
                  MACRO_ADD_FILE_DEPENDENCIES(${_abs_FILE} ${_moc})
               ENDFOREACH (_current_MOC_INC)
            ENDIF(_match)
         ENDIF ( NOT _skip AND EXISTS ${_abs_FILE} )
      ENDFOREACH (_current_FILE)
   ENDMACRO(QT4_AUTOMOC)

   MACRO(QT4_CREATE_TRANSLATION _qm_files)
      SET(_my_sources)
      SET(_my_tsfiles)
      FOREACH (_file ${ARGN})
         GET_FILENAME_COMPONENT(_ext ${_file} EXT)
         GET_FILENAME_COMPONENT(_abs_FILE ${_file} ABSOLUTE)
         IF(_ext MATCHES "ts")
           LIST(APPEND _my_tsfiles ${_abs_FILE})
         ELSE(_ext MATCHES "ts")
           LIST(APPEND _my_sources ${_abs_FILE})
         ENDIF(_ext MATCHES "ts")
      ENDFOREACH(_file)
      FOREACH(_ts_file ${_my_tsfiles})
        ADD_CUSTOM_COMMAND(OUTPUT ${_ts_file}
           COMMAND ${QT_LUPDATE_EXECUTABLE}
           ARGS ${_my_sources} -ts ${_ts_file}
           DEPENDS ${_my_sources})
      ENDFOREACH(_ts_file)
      QT4_ADD_TRANSLATION(${_qm_files} ${_my_tsfiles})
   ENDMACRO(QT4_CREATE_TRANSLATION)

   MACRO(QT4_ADD_TRANSLATION _qm_files)
      FOREACH (_current_FILE ${ARGN})
         GET_FILENAME_COMPONENT(_abs_FILE ${_current_FILE} ABSOLUTE)
         GET_FILENAME_COMPONENT(qm ${_abs_FILE} NAME_WE)
         SET(qm "${CMAKE_CURRENT_BINARY_DIR}/${qm}.qm")

         ADD_CUSTOM_COMMAND(OUTPUT ${qm}
            COMMAND ${QT_LRELEASE_EXECUTABLE}
            ARGS ${_abs_FILE} -qm ${qm}
            DEPENDS ${_abs_FILE}
         )
         SET(${_qm_files} ${${_qm_files}} ${qm})
      ENDFOREACH (_current_FILE)
   ENDMACRO(QT4_ADD_TRANSLATION)





  ######################################
  #
  #       decide if Qt got found
  #
  ######################################

  # if the includes,libraries,moc,uic and rcc are found then we have it
  IF( QT_LIBRARY_DIR AND QT_INCLUDE_DIR AND QT_MOC_EXECUTABLE AND 
      QT_UIC_EXECUTABLE AND QT_RCC_EXECUTABLE AND QT_QTCORE_LIBRARY)
    SET( QT4_FOUND "YES" )
    INCLUDE(FindPackageMessage)
    FIND_PACKAGE_MESSAGE(Qt4 "Found Qt-Version ${QTVERSION}"
      "[${QT_LIBRARY_DIR}][${QT_INCLUDE_DIR}][${QT_MOC_EXECUTABLE}][${QT_UIC_EXECUTABLE}][${QT_RCC_EXECUTABLE}]")
  ELSE( QT_LIBRARY_DIR AND QT_INCLUDE_DIR AND QT_MOC_EXECUTABLE AND
        QT_UIC_EXECUTABLE AND QT_RCC_EXECUTABLE AND QT_QTCORE_LIBRARY)
    SET( QT4_FOUND "NO")
    SET(QT_QMAKE_EXECUTABLE "${QT_QMAKE_EXECUTABLE}-NOTFOUND" CACHE FILEPATH "Invalid qmake found" FORCE)
    IF( Qt4_FIND_REQUIRED)
      MESSAGE( FATAL_ERROR "Qt libraries, includes, moc, uic or/and rcc NOT found!")
    ENDIF( Qt4_FIND_REQUIRED)
  ENDIF( QT_LIBRARY_DIR AND QT_INCLUDE_DIR AND QT_MOC_EXECUTABLE AND 
         QT_UIC_EXECUTABLE AND  QT_RCC_EXECUTABLE AND QT_QTCORE_LIBRARY)
  
  SET(QT_FOUND ${QT4_FOUND})


  #######################################
  #
  #       Qt configuration
  #
  #######################################
  IF(EXISTS "${QT_MKSPECS_DIR}/qconfig.pri")
    FILE(READ ${QT_MKSPECS_DIR}/qconfig.pri _qconfig_FILE_contents)
    STRING(REGEX MATCH "QT_CONFIG[^\n]+" QT_QCONFIG "${_qconfig_FILE_contents}")
    STRING(REGEX MATCH "CONFIG[^\n]+" QT_CONFIG "${_qconfig_FILE_contents}")
    STRING(REGEX MATCH "EDITION[^\n]+" QT_EDITION "${_qconfig_FILE_contents}")
  ENDIF(EXISTS "${QT_MKSPECS_DIR}/qconfig.pri")
  IF("${QT_EDITION}" MATCHES "DesktopLight")
    SET(QT_EDITION_DESKTOPLIGHT 1)
  ENDIF("${QT_EDITION}" MATCHES "DesktopLight")

  
  ###############################################
  #
  #       configuration/system dependent settings  
  #
  ###############################################
  
  # find dependencies for some Qt modules
  # when doing builds against a static Qt, they are required
  # when doing builds against a shared Qt, they are sometimes not required
  # even some Linux distros do not require these dependencies
  # if a user needs the dependencies, and they couldn't be found, they can set
  # the variables themselves.

  SET(QT_QTGUI_LIB_DEPENDENCIES "")
  SET(QT_QTCORE_LIB_DEPENDENCIES "")
  SET(QT_QTNETWORK_LIB_DEPENDENCIES "")
  SET(QT_QTOPENGL_LIB_DEPENDENCIES "")
  SET(QT_QTDBUS_LIB_DEPENDENCIES "")
  SET(QT_QTHELP_LIB_DEPENDENCIES ${QT_QTCLUCENE_LIBRARY})
  
  # build using shared Qt needs -DQT_DLL
  IF(NOT QT_CONFIG MATCHES "static")
    # warning currently only qconfig.pri on Windows potentially contains "static"
    # so QT_DLL might not get defined properly on other platforms.
    SET(QT_DEFINITIONS ${QT_DEFINITIONS} -DQT_DLL)
  ENDIF(NOT QT_CONFIG MATCHES "static")
  
  # QtOpenGL dependencies
  QT_QUERY_QMAKE(QMAKE_LIBS_OPENGL "QMAKE_LIBS_OPENGL")
  SET (QT_QTOPENGL_LIB_DEPENDENCIES ${QT_QTOPENGL_LIB_DEPENDENCIES} ${QMAKE_LIBS_OPENGL})
  
  ## system png
  IF(QT_QCONFIG MATCHES "system-png")
    FIND_LIBRARY(QT_PNG_LIBRARY NAMES png)
    MARK_AS_ADVANCED(QT_PNG_LIBRARY)
    IF(QT_PNG_LIBRARY)
      SET(QT_QTGUI_LIB_DEPENDENCIES ${QT_QTGUI_LIB_DEPENDENCIES} ${QT_PNG_LIBRARY})
    ENDIF(QT_PNG_LIBRARY)
  ENDIF(QT_QCONFIG MATCHES "system-png")
  
  # for X11, get X11 library directory
  IF(Q_WS_X11)
    QT_QUERY_QMAKE(QMAKE_LIBDIR_X11 "QMAKE_LIBDIR_X11")
  ENDIF(Q_WS_X11)

  ## X11 SM
  IF(QT_QCONFIG MATCHES "x11sm")
    # ask qmake where the x11 libs are
    FIND_LIBRARY(QT_X11_SM_LIBRARY NAMES SM PATHS ${QMAKE_LIBDIR_X11})
    FIND_LIBRARY(QT_X11_ICE_LIBRARY NAMES ICE PATHS ${QMAKE_LIBDIR_X11})
    MARK_AS_ADVANCED(QT_X11_SM_LIBRARY)
    MARK_AS_ADVANCED(QT_X11_ICE_LIBRARY)
    IF(QT_X11_SM_LIBRARY AND QT_X11_ICE_LIBRARY)
      SET(QT_QTGUI_LIB_DEPENDENCIES ${QT_QTGUI_LIB_DEPENDENCIES} ${QT_X11_SM_LIBRARY} ${QT_X11_ICE_LIBRARY})
    ENDIF(QT_X11_SM_LIBRARY AND QT_X11_ICE_LIBRARY)
  ENDIF(QT_QCONFIG MATCHES "x11sm")
  
  ## Xi
  IF(QT_QCONFIG MATCHES "tablet")
    FIND_LIBRARY(QT_XI_LIBRARY NAMES Xi PATHS ${QMAKE_LIBDIR_X11})
    MARK_AS_ADVANCED(QT_XI_LIBRARY)
    IF(QT_XI_LIBRARY)
      SET(QT_QTGUI_LIB_DEPENDENCIES ${QT_QTGUI_LIB_DEPENDENCIES} ${QT_XI_LIBRARY})
    ENDIF(QT_XI_LIBRARY)
  ENDIF(QT_QCONFIG MATCHES "tablet")

  ## Xrender
  IF(QT_QCONFIG MATCHES "xrender")
    FIND_LIBRARY(QT_XRENDER_LIBRARY NAMES Xrender PATHS ${QMAKE_LIBDIR_X11})
    MARK_AS_ADVANCED(QT_XRENDER_LIBRARY)
    IF(QT_XRENDER_LIBRARY)
      SET(QT_QTGUI_LIB_DEPENDENCIES ${QT_QTGUI_LIB_DEPENDENCIES} ${QT_XRENDER_LIBRARY})
    ENDIF(QT_XRENDER_LIBRARY)
  ENDIF(QT_QCONFIG MATCHES "xrender")
  
  ## Xrandr
  IF(QT_QCONFIG MATCHES "xrandr")
    FIND_LIBRARY(QT_XRANDR_LIBRARY NAMES Xrandr PATHS ${QMAKE_LIBDIR_X11})
    MARK_AS_ADVANCED(QT_XRANDR_LIBRARY)
    IF(QT_XRANDR_LIBRARY)
      SET(QT_QTGUI_LIB_DEPENDENCIES ${QT_QTGUI_LIB_DEPENDENCIES} ${QT_XRANDR_LIBRARY})
    ENDIF(QT_XRANDR_LIBRARY)
  ENDIF(QT_QCONFIG MATCHES "xrandr")
  
  ## Xcursor
  IF(QT_QCONFIG MATCHES "xcursor")
    FIND_LIBRARY(QT_XCURSOR_LIBRARY NAMES Xcursor PATHS ${QMAKE_LIBDIR_X11})
    MARK_AS_ADVANCED(QT_XCURSOR_LIBRARY)
    IF(QT_XCURSOR_LIBRARY)
      SET(QT_QTGUI_LIB_DEPENDENCIES ${QT_QTGUI_LIB_DEPENDENCIES} ${QT_XCURSOR_LIBRARY})
    ENDIF(QT_XCURSOR_LIBRARY)
  ENDIF(QT_QCONFIG MATCHES "xcursor")
  
  ## Xinerama
  IF(QT_QCONFIG MATCHES "xinerama")
    FIND_LIBRARY(QT_XINERAMA_LIBRARY NAMES Xinerama PATHS ${QMAKE_LIBDIR_X11})
    MARK_AS_ADVANCED(QT_XINERAMA_LIBRARY)
    IF(QT_XINERAMA_LIBRARY)
      SET(QT_QTGUI_LIB_DEPENDENCIES ${QT_QTGUI_LIB_DEPENDENCIES} ${QT_XINERAMA_LIBRARY})
    ENDIF(QT_XINERAMA_LIBRARY)
  ENDIF(QT_QCONFIG MATCHES "xinerama")
  
  ## Xfixes
  IF(QT_QCONFIG MATCHES "xfixes")
    FIND_LIBRARY(QT_XFIXES_LIBRARY NAMES Xfixes PATHS ${QMAKE_LIBDIR_X11})
    MARK_AS_ADVANCED(QT_XFIXES_LIBRARY)
    IF(QT_XFIXES_LIBRARY)
      SET(QT_QTGUI_LIB_DEPENDENCIES ${QT_QTGUI_LIB_DEPENDENCIES} ${QT_XFIXES_LIBRARY})
    ENDIF(QT_XFIXES_LIBRARY)
  ENDIF(QT_QCONFIG MATCHES "xfixes")
  
  ## system-freetype
  IF(QT_QCONFIG MATCHES "system-freetype")
    FIND_LIBRARY(QT_FREETYPE_LIBRARY NAMES freetype)
    MARK_AS_ADVANCED(QT_FREETYPE_LIBRARY)
    IF(QT_FREETYPE_LIBRARY)
      SET(QT_QTGUI_LIB_DEPENDENCIES ${QT_QTGUI_LIB_DEPENDENCIES} ${QT_FREETYPE_LIBRARY})
    ENDIF(QT_FREETYPE_LIBRARY)
  ENDIF(QT_QCONFIG MATCHES "system-freetype")
  
  ## fontconfig
  IF(QT_QCONFIG MATCHES "fontconfig")
    FIND_LIBRARY(QT_FONTCONFIG_LIBRARY NAMES fontconfig)
    MARK_AS_ADVANCED(QT_FONTCONFIG_LIBRARY)
    IF(QT_FONTCONFIG_LIBRARY)
      SET(QT_QTGUI_LIB_DEPENDENCIES ${QT_QTGUI_LIB_DEPENDENCIES} ${QT_FONTCONFIG_LIBRARY})
    ENDIF(QT_FONTCONFIG_LIBRARY)
  ENDIF(QT_QCONFIG MATCHES "fontconfig")
  
  ## system-zlib
  IF(QT_QCONFIG MATCHES "system-zlib")
    FIND_LIBRARY(QT_ZLIB_LIBRARY NAMES z)
    MARK_AS_ADVANCED(QT_ZLIB_LIBRARY)
    IF(QT_ZLIB_LIBRARY)
      SET(QT_QTCORE_LIB_DEPENDENCIES ${QT_QTCORE_LIB_DEPENDENCIES} ${QT_ZLIB_LIBRARY})
    ENDIF(QT_ZLIB_LIBRARY)
  ENDIF(QT_QCONFIG MATCHES "system-zlib")

  ## openssl
  IF(QT_QCONFIG MATCHES "openssl" AND NOT Q_WS_WIN)
    FIND_PACKAGE(OpenSSL)
    IF(OPENSSL_LIBRARIES)
      SET(QT_QTNETWORK_LIB_DEPENDENCIES ${QT_QTNETWORK_LIB_DEPENDENCIES} ${OPENSSL_LIBRARIES})
    ENDIF(OPENSSL_LIBRARIES)
  ENDIF(QT_QCONFIG MATCHES "openssl" AND NOT Q_WS_WIN)
  
  ## qdbus
  IF(QT_QCONFIG MATCHES "qdbus")

    # if the dbus library isn't found, we'll assume its not required to build
    # shared Qt on Linux doesn't require it
    IF(NOT QT_DBUS_LIBRARY)
      EXECUTE_PROCESS(COMMAND pkg-config --libs-only-L dbus-1
        OUTPUT_VARIABLE _dbus_query_output
        RESULT_VARIABLE _dbus_result
        ERROR_VARIABLE _dbus_query_output )
      
      IF(_dbus_result MATCHES 0)
        STRING(REPLACE "-L" "" _dbus_query_output "${_dbus_query_output}")
        SEPARATE_ARGUMENTS(_dbus_query_output)
      ELSE(_dbus_result MATCHES 0)
        SET(_dbus_query_output)
      ENDIF(_dbus_result MATCHES 0)

      FIND_LIBRARY(QT_DBUS_LIBRARY NAMES dbus-1 PATHS ${_dbus_query_output} )

      IF(QT_DBUS_LIBRARY)
        SET(QT_QTDBUS_LIB_DEPENDENCIES ${QT_QTDBUS_LIB_DEPENDENCIES} ${QT_DBUS_LIBRARY})
      ENDIF(QT_DBUS_LIBRARY)

      MARK_AS_ADVANCED(QT_DBUS_LIBRARY)
    ENDIF(NOT QT_DBUS_LIBRARY)

  ENDIF(QT_QCONFIG MATCHES "qdbus")
  
  ## glib
  IF(QT_QCONFIG MATCHES "glib")
    
    # if the glib libraries aren't found, we'll assume its not required to build
    # shared Qt on Linux doesn't require it

    # Qt 4.2.0+ uses glib-2.0
    IF(NOT QT_GLIB_LIBRARY OR NOT QT_GTHREAD_LIBRARY)
      EXECUTE_PROCESS(COMMAND pkg-config --libs-only-L glib-2.0 gthread-2.0
        OUTPUT_VARIABLE _glib_query_output
        RESULT_VARIABLE _glib_result
        ERROR_VARIABLE _glib_query_output )

      IF(_glib_result MATCHES 0)
        STRING(REPLACE "-L" "" _glib_query_output "${_glib_query_output}")
        SEPARATE_ARGUMENTS(_glib_query_output)
      ELSE(_glib_result MATCHES 0)
        SET(_glib_query_output)
      ENDIF(_glib_result MATCHES 0)

      FIND_LIBRARY(QT_GLIB_LIBRARY NAMES glib-2.0 PATHS ${_glib_query_output} )
      FIND_LIBRARY(QT_GTHREAD_LIBRARY NAMES gthread-2.0 PATHS ${_glib_query_output} )

      IF(QT_GLIB_LIBRARY AND QT_GTHREAD_LIBRARY)
        SET(QT_QTCORE_LIB_DEPENDENCIES ${QT_QTCORE_LIB_DEPENDENCIES}
            ${QT_GTHREAD_LIBRARY} ${QT_GLIB_LIBRARY})
      ENDIF(QT_GLIB_LIBRARY AND QT_GTHREAD_LIBRARY)

      MARK_AS_ADVANCED(QT_GLIB_LIBRARY)
      MARK_AS_ADVANCED(QT_GTHREAD_LIBRARY)
    ENDIF(NOT QT_GLIB_LIBRARY OR NOT QT_GTHREAD_LIBRARY)
  ENDIF(QT_QCONFIG MATCHES "glib")
  
  ## clock-monotonic, just see if we need to link with rt
  IF(QT_QCONFIG MATCHES "clock-monotonic")
    SET(CMAKE_REQUIRED_LIBRARIES_SAVE ${CMAKE_REQUIRED_LIBRARIES})
    SET(CMAKE_REQUIRED_LIBRARIES rt)
    CHECK_SYMBOL_EXISTS(_POSIX_TIMERS "unistd.h;time.h" QT_POSIX_TIMERS)
    SET(CMAKE_REQUIRED_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES_SAVE})
    IF(QT_POSIX_TIMERS)
      FIND_LIBRARY(QT_RT_LIBRARY NAMES rt)
      MARK_AS_ADVANCED(QT_RT_LIBRARY)
      IF(QT_RT_LIBRARY)
        SET(QT_QTCORE_LIB_DEPENDENCIES ${QT_QTCORE_LIB_DEPENDENCIES} ${QT_RT_LIBRARY})
      ENDIF(QT_RT_LIBRARY)
    ENDIF(QT_POSIX_TIMERS)
  ENDIF(QT_QCONFIG MATCHES "clock-monotonic")
    
  IF(Q_WS_X11)
    # X11 libraries Qt absolutely depends on
    QT_QUERY_QMAKE(QT_LIBS_X11