CMake/Modules/FindQt.cmake

143 lines
5.3 KiB
CMake

# searches for all installed versions of QT.
# This should only be used if your project can work with multiple
# versions of QT. If not, you should just directly use FindQt4 or FindQt3.
#
# If multiple versions of QT are found on the machine, then
# The user must set the option DESIRED_QT_VERSION to the version
# they want to use. If only one version of qt is found on the machine,
# then the DESIRED_QT_VERSION is set to that version and the
# matching FindQt3 or FindQt4 module is included.
# Once the user sets DESIRED_QT_VERSION, then the FindQt3 or FindQt4 module
# is included.
#
# QT_REQUIRED if this is set to TRUE then if cmake can not find QT4 or QT3
# an error is raised and a message is sent to the user.
# DESIRED_QT_VERSION OPTION is created
# QT4_INSTALLED is set to TRUE if qt4 is found.
# QT3_INSTALLED is set to TRUE if qt3 is found.
# look for signs of qt3 installations
FILE(GLOB GLOB_TEMP_VAR /usr/lib/qt-3*/bin/qmake)
IF(GLOB_TEMP_VAR)
SET(QT3_INSTALLED TRUE)
ENDIF(GLOB_TEMP_VAR)
SET(GLOB_TEMP_VAR)
FILE(GLOB GLOB_TEMP_VAR /usr/local/qt-x11-commercial-3*/bin/qmake)
IF(GLOB_TEMP_VAR)
SET(QT3_INSTALLED TRUE)
ENDIF(GLOB_TEMP_VAR)
SET(GLOB_TEMP_VAR)
# look for qt4 installations
FILE(GLOB GLOB_TEMP_VAR /usr/local/qt-x11-commercial-4*/bin/qmake)
IF(GLOB_TEMP_VAR)
SET(QT4_INSTALLED TRUE)
ENDIF(GLOB_TEMP_VAR)
SET(GLOB_TEMP_VAR)
FILE(GLOB GLOB_TEMP_VAR /usr/local/Trolltech/Qt-4*/bin/qmake)
IF(GLOB_TEMP_VAR)
SET(QT4_INSTALLED TRUE)
ENDIF(GLOB_TEMP_VAR)
SET(GLOB_TEMP_VAR)
# now find qmake
FIND_PROGRAM(QT_QMAKE_EXECUTABLE_FINDQT NAMES qmake PATHS "${QT_SEARCH_PATH}/bin" "$ENV{QTDIR}/bin")
IF(QT_QMAKE_EXECUTABLE_FINDQT)
EXEC_PROGRAM(${QT_QMAKE_EXECUTABLE_FINDQT} ARGS "-query QT_VERSION"
OUTPUT_VARIABLE QTVERSION)
IF(QTVERSION MATCHES "4.*")
SET(QT_QMAKE_EXECUTABLE ${QT_QMAKE_EXECUTABLE_FINDQT} CACHE PATH "QT4 qmake program.")
SET(QT4_INSTALLED TRUE)
ENDIF(QTVERSION MATCHES "4.*")
IF(QTVERSION MATCHES "Unknown")
SET(QT3_INSTALLED TRUE)
ENDIF(QTVERSION MATCHES "Unknown")
ENDIF(QT_QMAKE_EXECUTABLE_FINDQT)
IF(QT_QMAKE_EXECUTABLE_FINDQT)
EXEC_PROGRAM( ${QT_QMAKE_EXECUTABLE_FINDQT}
ARGS "-query QT_INSTALL_HEADERS"
OUTPUT_VARIABLE qt_headers )
ENDIF(QT_QMAKE_EXECUTABLE_FINDQT)
FIND_FILE( QT4_QGLOBAL_H_FILE qglobal.h
"${QT_SEARCH_PATH}/Qt/include"
"[HKEY_CURRENT_USER\\Software\\Trolltech\\Qt3Versions\\4.0.0;InstallDir]/include/Qt"
"[HKEY_CURRENT_USER\\Software\\Trolltech\\Versions\\4.0.0;InstallDir]/include/Qt"
${qt_headers}/Qt
$ENV{QTDIR}/include/Qt
/usr/local/qt/include/Qt
/usr/local/include/Qt
/usr/lib/qt/include/Qt
/usr/include/Qt
/usr/share/qt4/include/Qt
C:/Progra~1/qt/include/Qt )
IF(QT4_QGLOBAL_H_FILE)
SET(QT4_INSTALLED TRUE)
ENDIF(QT4_QGLOBAL_H_FILE)
FIND_FILE( QT3_QGLOBAL_H_FILE qglobal.h
"${QT_SEARCH_PATH}/Qt/include"
"[HKEY_CURRENT_USER\\Software\\Trolltech\\Qt3Versions\\3.2.1;InstallDir]/include/Qt"
"[HKEY_CURRENT_USER\\Software\\Trolltech\\Qt3Versions\\3.2.0;InstallDir]/include/Qt"
"[HKEY_CURRENT_USER\\Software\\Trolltech\\Qt3Versions\\3.1.0;InstallDir]/include/Qt"
C:/Qt/3.3.3Educational/include
$ENV{QTDIR}/include
/usr/include/qt3/Qt
/usr/local/qt/include
/usr/local/include
/usr/lib/qt/include
/usr/include
/usr/share/qt3/include
C:/Progra~1/qt/include
/usr/include/qt3 )
IF(QT3_QGLOBAL_H_FILE)
SET(QT3_INSTALLED TRUE)
ENDIF(QT3_QGLOBAL_H_FILE)
IF(QT3_INSTALLED AND QT4_INSTALLED )
# force user to pick if we have both
SET(DESIRED_QT_VERSION 0 CACHE STRING "Pick a version of QT to use: 3 or 4")
ELSE(QT3_INSTALLED AND QT4_INSTALLED )
# if only one found then pick that one
IF(QT3_INSTALLED)
SET(DESIRED_QT_VERSION 3 CACHE STRING "Pick a version of QT to use: 3 or 4")
ENDIF(QT3_INSTALLED)
IF(QT4_INSTALLED)
SET(DESIRED_QT_VERSION 4 CACHE STRING "Pick a version of QT to use: 3 or 4")
ENDIF(QT4_INSTALLED)
ENDIF(QT3_INSTALLED AND QT4_INSTALLED )
IF(DESIRED_QT_VERSION MATCHES 3)
INCLUDE(FindQt3)
ENDIF(DESIRED_QT_VERSION MATCHES 3)
IF(DESIRED_QT_VERSION MATCHES 4)
INCLUDE(FindQt4)
ENDIF(DESIRED_QT_VERSION MATCHES 4)
IF(NOT QT3_INSTALLED AND NOT QT4_INSTALLED)
IF(QT_REQUIRED)
MESSAGE(SEND_ERROR "CMake was unable to find any QT versions, put qmake in your path, or set QT_QMAKE_EXECUTABLE.")
ENDIF(QT_REQUIRED)
ELSE(NOT QT3_INSTALLED AND NOT QT4_INSTALLED)
IF(NOT QT_FOUND AND NOT DESIRED_QT_VERSION)
IF(QT_REQUIRED)
MESSAGE(SEND_ERROR "Multiple versions of QT found please set DESIRED_QT_VERSION")
ELSE(QT_REQUIRED)
MESSAGE("Multiple versions of QT found please set DESIRED_QT_VERSION")
ENDIF(QT_REQUIRED)
ENDIF(NOT QT_FOUND AND NOT DESIRED_QT_VERSION)
IF(NOT QT_FOUND AND DESIRED_QT_VERSION)
IF(QT_REQUIRED)
MESSAGE(SEND_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.")
ELSE(QT_REQUIRED)
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.")
ENDIF(QT_REQUIRED)
ENDIF(NOT QT_FOUND AND DESIRED_QT_VERSION)
ENDIF(NOT QT3_INSTALLED AND NOT QT4_INSTALLED)
MARK_AS_ADVANCED(QT3_QGLOBAL_H_FILE QT4_QGLOBAL_H_FILE QT_QMAKE_EXECUTABLE_FINDQT)