Modules/FindQt.cmake

   1 # - Searches for all installed versions of QT.
   2 # This should only be used if your project can work with multiple
   3 # versions of QT.  If not, you should just directly use FindQt4 or FindQt3.
   4 # If multiple versions of QT are found on the machine, then
   5 # The user must set the option DESIRED_QT_VERSION to the version
   6 # they want to use.  If only one version of qt is found on the machine,
   7 # then the DESIRED_QT_VERSION is set to that version and the
   8 # matching FindQt3 or FindQt4 module is included.
   9 # Once the user sets DESIRED_QT_VERSION, then the FindQt3 or FindQt4 module
  10 # is included.
  11 #
  12 #  QT_REQUIRED if this is set to TRUE then if CMake can
  13 #              not find QT4 or QT3 an error is raised
  14 #              and a message is sent to the user.
  15 #
  16 #  DESIRED_QT_VERSION OPTION is created
  17 #  QT4_INSTALLED is set to TRUE if qt4 is found.
  18 #  QT3_INSTALLED is set to TRUE if qt3 is found.
  19
  20
  21 # look for signs of qt3 installations
  22 FILE(GLOB GLOB_TEMP_VAR /usr/lib/qt-3*/bin/qmake)
  23 IF(GLOB_TEMP_VAR)
  24   SET(QT3_INSTALLED TRUE)
  25 ENDIF(GLOB_TEMP_VAR)
  26 SET(GLOB_TEMP_VAR)
  27
  28 FILE(GLOB GLOB_TEMP_VAR /usr/local/qt-x11-commercial-3*/bin/qmake)
  29 IF(GLOB_TEMP_VAR)
  30   SET(QT3_INSTALLED TRUE)
  31 ENDIF(GLOB_TEMP_VAR)
  32 SET(GLOB_TEMP_VAR)
  33
  34 # look for qt4 installations
  35 FILE(GLOB GLOB_TEMP_VAR /usr/local/qt-x11-commercial-4*/bin/qmake)
  36 IF(GLOB_TEMP_VAR)
  37   SET(QT4_INSTALLED TRUE)
  38 ENDIF(GLOB_TEMP_VAR)
  39 SET(GLOB_TEMP_VAR)
  40
  41 FILE(GLOB GLOB_TEMP_VAR /usr/local/Trolltech/Qt-4*/bin/qmake)
  42 IF(GLOB_TEMP_VAR)
  43   SET(QT4_INSTALLED TRUE)
  44 ENDIF(GLOB_TEMP_VAR)
  45 SET(GLOB_TEMP_VAR)
  46
  47 # now find qmake
  48 FIND_PROGRAM(QT_QMAKE_EXECUTABLE_FINDQT NAMES qmake PATHS "${QT_SEARCH_PATH}/bin" "$ENV{QTDIR}/bin")
  49 IF(QT_QMAKE_EXECUTABLE_FINDQT)
  50   EXEC_PROGRAM(${QT_QMAKE_EXECUTABLE_FINDQT} ARGS "-query QT_VERSION"
  51     OUTPUT_VARIABLE QTVERSION)
  52   IF(QTVERSION MATCHES "4.*")
  53     SET(QT_QMAKE_EXECUTABLE ${QT_QMAKE_EXECUTABLE_FINDQT} CACHE PATH "QT4 qmake program.")
  54     SET(QT4_INSTALLED TRUE)
  55   ENDIF(QTVERSION MATCHES "4.*")
  56   IF(QTVERSION MATCHES "Unknown")
  57     SET(QT3_INSTALLED TRUE)
  58   ENDIF(QTVERSION MATCHES "Unknown")
  59 ENDIF(QT_QMAKE_EXECUTABLE_FINDQT)
  60
  61 IF(QT_QMAKE_EXECUTABLE_FINDQT)
  62   EXEC_PROGRAM( ${QT_QMAKE_EXECUTABLE_FINDQT}
  63     ARGS "-query QT_INSTALL_HEADERS"
  64     OUTPUT_VARIABLE qt_headers )
  65 ENDIF(QT_QMAKE_EXECUTABLE_FINDQT)
  66
  67 FIND_FILE( QT4_QGLOBAL_H_FILE qglobal.h
  68   "${QT_SEARCH_PATH}/Qt/include"
  69   "[HKEY_CURRENT_USER\\Software\\Trolltech\\Qt3Versions\\4.0.0;InstallDir]/include/Qt"
  70   "[HKEY_CURRENT_USER\\Software\\Trolltech\\Versions\\4.0.0;InstallDir]/include/Qt"
  71   ${qt_headers}/Qt
  72   $ENV{QTDIR}/include/Qt
  73   /usr/local/qt/include/Qt
  74   /usr/local/include/Qt
  75   /usr/lib/qt/include/Qt
  76   /usr/include/Qt
  77   /usr/share/qt4/include/Qt
  78   C:/Progra~1/qt/include/Qt )
  79
  80 IF(QT4_QGLOBAL_H_FILE)
  81   SET(QT4_INSTALLED TRUE)
  82 ENDIF(QT4_QGLOBAL_H_FILE)
  83
  84 FIND_FILE( QT3_QGLOBAL_H_FILE qglobal.h
  85   "${QT_SEARCH_PATH}/Qt/include"
  86  "[HKEY_CURRENT_USER\\Software\\Trolltech\\Qt3Versions\\3.2.1;InstallDir]/include/Qt"
  87   "[HKEY_CURRENT_USER\\Software\\Trolltech\\Qt3Versions\\3.2.0;InstallDir]/include/Qt"
  88   "[HKEY_CURRENT_USER\\Software\\Trolltech\\Qt3Versions\\3.1.0;InstallDir]/include/Qt"
  89   C:/Qt/3.3.3Educational/include
  90   $ENV{QTDIR}/include
  91   /usr/include/qt3/Qt
  92   /usr/local/qt/include
  93   /usr/local/include
  94   /usr/lib/qt/include
  95   /usr/include
  96   /usr/share/qt3/include
  97   C:/Progra~1/qt/include
  98   /usr/include/qt3 )
  99
 100 IF(QT3_QGLOBAL_H_FILE)
 101   SET(QT3_INSTALLED TRUE)
 102 ENDIF(QT3_QGLOBAL_H_FILE)
 103
 104 IF(QT3_INSTALLED AND QT4_INSTALLED )
 105   # force user to pick if we have both
 106   SET(DESIRED_QT_VERSION 0 CACHE STRING "Pick a version of QT to use: 3 or 4")
 107 ELSE(QT3_INSTALLED AND QT4_INSTALLED )
 108   # if only one found then pick that one
 109   IF(QT3_INSTALLED)
 110     SET(DESIRED_QT_VERSION 3 CACHE STRING "Pick a version of QT to use: 3 or 4")
 111   ENDIF(QT3_INSTALLED)
 112   IF(QT4_INSTALLED)
 113     SET(DESIRED_QT_VERSION 4 CACHE STRING "Pick a version of QT to use: 3 or 4")
 114   ENDIF(QT4_INSTALLED)
 115 ENDIF(QT3_INSTALLED AND QT4_INSTALLED )
 116
 117 IF(DESIRED_QT_VERSION MATCHES 3)
 118   SET(Qt3_FIND_REQUIRED ${Qt_FIND_REQUIRED})
 119   SET(Qt3_FIND_QUIETLY  ${Qt_FIND_QUIETLY})
 120   INCLUDE(FindQt3)
 121 ENDIF(DESIRED_QT_VERSION MATCHES 3)
 122 IF(DESIRED_QT_VERSION MATCHES 4)
 123   SET(Qt4_FIND_REQUIRED ${Qt_FIND_REQUIRED})
 124   SET(Qt4_FIND_QUIETLY  ${Qt_FIND_QUIETLY})
 125   INCLUDE(FindQt4)
 126 ENDIF(DESIRED_QT_VERSION MATCHES 4)
 127
 128 IF(NOT QT3_INSTALLED AND NOT QT4_INSTALLED)
 129   IF(QT_REQUIRED)
 130     MESSAGE(SEND_ERROR "CMake was unable to find any QT versions, put qmake in your path, or set QT_QMAKE_EXECUTABLE.")
 131   ENDIF(QT_REQUIRED)
 132 ELSE(NOT QT3_INSTALLED AND NOT QT4_INSTALLED)
 133   IF(NOT QT_FOUND AND NOT DESIRED_QT_VERSION)
 134     IF(QT_REQUIRED)
 135       MESSAGE(SEND_ERROR "Multiple versions of QT found please set DESIRED_QT_VERSION")
 136     ELSE(QT_REQUIRED)
 137       MESSAGE("Multiple versions of QT found please set DESIRED_QT_VERSION")
 138     ENDIF(QT_REQUIRED)
 139   ENDIF(NOT QT_FOUND AND NOT DESIRED_QT_VERSION)
 140   IF(NOT QT_FOUND AND DESIRED_QT_VERSION)
 141     IF(QT_REQUIRED)
 142       MESSAGE(FATAL_ERROR "CMake was unable to find QT version: ${DESIRED_QT_VERSION}. Set advanced values QT_QMAKE_EXECUTABLE and QT${DESIRED_QT_VERSION}_QGLOBAL_FILE, if those are set then QT_QT_LIBRARY or QT_LIBRARY_DIR.")
 143     ELSE(QT_REQUIRED)
 144       MESSAGE( "CMake was unable to find desired QT version: ${DESIRED_QT_VERSION}. Set advanced values QT_QMAKE_EXECUTABLE and QT${DESIRED_QT_VERSION}_QGLOBAL_FILE.")
 145     ENDIF(QT_REQUIRED)
 146   ENDIF(NOT QT_FOUND AND DESIRED_QT_VERSION)
 147 ENDIF(NOT QT3_INSTALLED AND NOT QT4_INSTALLED)
 148 MARK_AS_ADVANCED(QT3_QGLOBAL_H_FILE QT4_QGLOBAL_H_FILE QT_QMAKE_EXECUTABLE_FINDQT)