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#.rst:
# FindQt
# ------
#
# 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.
#
# This module can only detect and switch between Qt versions 3 and 4. It
# cannot handle Qt5 or any later versions.
#
# ::
#
# 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.
#=============================================================================
# Copyright 2001-2009 Kitware, Inc.
#
# Distributed under the OSI-approved BSD License (the "License");
# see accompanying file Copyright.txt for details.
#
# This software is distributed WITHOUT ANY WARRANTY; without even the
# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
# See the License for more information.
#=============================================================================
# (To distribute this file outside of CMake, substitute the full
# License text for the above reference.)
# look for signs of qt3 installations
file(GLOB GLOB_TEMP_VAR /usr/lib*/qt-3*/bin/qmake /usr/lib*/qt3*/bin/qmake)
if(GLOB_TEMP_VAR)
set(QT3_INSTALLED TRUE)
endif()
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()
set(GLOB_TEMP_VAR)
file(GLOB GLOB_TEMP_VAR /usr/local/lib/qt3/bin/qmake)
if(GLOB_TEMP_VAR)
set(QT3_INSTALLED TRUE)
endif()
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()
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()
set(GLOB_TEMP_VAR)
file(GLOB GLOB_TEMP_VAR /usr/local/lib/qt4/bin/qmake)
if(GLOB_TEMP_VAR)
set(QT4_INSTALLED TRUE)
endif()
set(GLOB_TEMP_VAR)
if (Qt_FIND_VERSION)
if (Qt_FIND_VERSION MATCHES "^([34])(\\.[0-9]+.*)?$")
set(DESIRED_QT_VERSION ${CMAKE_MATCH_1})
else ()
message(FATAL_ERROR "FindQt was called with invalid version '${Qt_FIND_VERSION}'. Only Qt major versions 3 or 4 are supported. If you do not need to support both Qt3 and Qt4 in your source consider calling find_package(Qt3) or find_package(Qt4) instead of find_package(Qt) instead.")
endif ()
endif ()
# 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()
if(QTVERSION MATCHES "Unknown")
set(QT3_INSTALLED TRUE)
endif()
endif()
if(QT_QMAKE_EXECUTABLE_FINDQT)
exec_program( ${QT_QMAKE_EXECUTABLE_FINDQT}
ARGS "-query QT_INSTALL_HEADERS"
OUTPUT_VARIABLE qt_headers )
endif()
find_file( QT4_QGLOBAL_H_FILE qglobal.h
"${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
$ENV{QTDIR}/include/Qt
/usr/local/qt/include/Qt
/usr/local/include/Qt
/usr/lib/qt/include/Qt
/usr/include/Qt
/usr/share/qt4/include/Qt
/usr/local/include/X11/qt4/Qt
C:/Progra~1/qt/include/Qt )
if(QT4_QGLOBAL_H_FILE)
set(QT4_INSTALLED TRUE)
endif()
find_file( QT3_QGLOBAL_H_FILE qglobal.h
"${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
/usr/local/include/X11/qt3
C:/Progra~1/qt/include
/usr/include/qt3 )
if(QT3_QGLOBAL_H_FILE)
set(QT3_INSTALLED TRUE)
endif()
if(QT3_INSTALLED AND QT4_INSTALLED AND NOT DESIRED_QT_VERSION)
# 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()
# if only one found then pick that one
if(QT3_INSTALLED AND NOT DESIRED_QT_VERSION EQUAL 4)
set(DESIRED_QT_VERSION 3 CACHE STRING "Pick a version of Qt to use: 3 or 4")
endif()
if(QT4_INSTALLED AND NOT DESIRED_QT_VERSION EQUAL 3)
set(DESIRED_QT_VERSION 4 CACHE STRING "Pick a version of Qt to use: 3 or 4")
endif()
endif()
if(DESIRED_QT_VERSION EQUAL 3)
set(Qt3_FIND_REQUIRED ${Qt_FIND_REQUIRED})
set(Qt3_FIND_QUIETLY ${Qt_FIND_QUIETLY})
include(${CMAKE_CURRENT_LIST_DIR}/FindQt3.cmake)
endif()
if(DESIRED_QT_VERSION EQUAL 4)
set(Qt4_FIND_REQUIRED ${Qt_FIND_REQUIRED})
set(Qt4_FIND_QUIETLY ${Qt_FIND_QUIETLY})
include(${CMAKE_CURRENT_LIST_DIR}/FindQt4.cmake)
endif()
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()
else()
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()
message("Multiple versions of Qt found please set DESIRED_QT_VERSION")
endif()
endif()
if(NOT QT_FOUND AND DESIRED_QT_VERSION)
if(QT_REQUIRED)
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_H_FILE, if those are set then QT_QT_LIBRARY or QT_LIBRARY_DIR.")
else()
message( "CMake was unable to find desired Qt version: ${DESIRED_QT_VERSION}. Set advanced values QT_QMAKE_EXECUTABLE and QT${DESIRED_QT_VERSION}_QGLOBAL_H_FILE.")
endif()
endif()
endif()
mark_as_advanced(QT3_QGLOBAL_H_FILE QT4_QGLOBAL_H_FILE QT_QMAKE_EXECUTABLE_FINDQT)
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