diff options
Diffstat (limited to 'modules')
| -rw-r--r-- | modules/FindQt4.cmake | 83 |
1 files changed, 75 insertions, 8 deletions
diff --git a/modules/FindQt4.cmake b/modules/FindQt4.cmake index fbe10a80..8dff2fb5 100644 --- a/modules/FindQt4.cmake +++ b/modules/FindQt4.cmake @@ -14,6 +14,14 @@ # add_executable(myexe main.cpp) # target_link_libraries(myexe ${QT_LIBRARIES}) # +# The minimum required version can be specified using the standard find_package()-syntax +# (see example above). +# For compatibility with older versions of FindQt4.cmake it is also possible to +# set the variable QT_MIN_VERSION to the minimum required version of Qt4 before the +# find_package(Qt4) command. +# If both are used, the version used in the find_package() command overrides the +# one from QT_MIN_VERSION. +# # When using the components argument, QT_USE_QT* variables are automatically set # for the QT_USE_FILE to pick up. If one wishes to manually set them, the # available ones to set include: @@ -295,6 +303,23 @@ # Copyright (c) 2002 Kitware, Inc., Insight Consortium. All rights reserved. # See Copyright.txt or http://www.cmake.org/HTML/Copyright.html for details. +# Use FIND_PACKAGE( Qt4 COMPONENTS ... ) to enable modules +IF( Qt4_FIND_COMPONENTS ) + FOREACH( component ${Qt4_FIND_COMPONENTS} ) + STRING( TOUPPER ${component} _COMPONENT ) + SET( QT_USE_${_COMPONENT} 1 ) + ENDFOREACH( component ) + + # To make sure we don't use QtCore or QtGui when not in COMPONENTS + IF(NOT QT_USE_QTCORE) + SET( QT_DONT_USE_QTCORE 1 ) + ENDIF(NOT QT_USE_QTCORE) + + IF(NOT QT_USE_QTGUI) + SET( QT_DONT_USE_QTGUI 1 ) + ENDIF(NOT QT_USE_QTGUI) + +ENDIF( Qt4_FIND_COMPONENTS ) # If Qt3 has already been found, fail. IF(QT_QT_LIBRARY) @@ -378,6 +403,12 @@ FIND_PROGRAM(QT_QMAKE_EXECUTABLE NAMES qmake qmake4 qmake-qt4 PATHS IF (QT_QMAKE_EXECUTABLE) + IF(QT_QMAKE_EXECUTABLE_LAST) + STRING(COMPARE NOTEQUAL "${QT_QMAKE_EXECUTABLE_LAST}" "${QT_QMAKE_EXECUTABLE}" QT_QMAKE_CHANGED) + ENDIF(QT_QMAKE_EXECUTABLE_LAST) + + SET(QT_QMAKE_EXECUTABLE_LAST "${QT_QMAKE_EXECUTABLE}" CACHE INTERNAL "" FORCE) + SET(QT4_QMAKE_FOUND FALSE) EXEC_PROGRAM(${QT_QMAKE_EXECUTABLE} ARGS "-query QT_VERSION" OUTPUT_VARIABLE QTVERSION) @@ -416,6 +447,16 @@ IF (QT_QMAKE_EXECUTABLE) STRING(REGEX REPLACE "^[0-9]+\\.([0-9])+\\.[0-9]+" "\\1" req_qt_minor_vers "${QT_MIN_VERSION}") STRING(REGEX REPLACE "^[0-9]+\\.[0-9]+\\.([0-9]+)" "\\1" req_qt_patch_vers "${QT_MIN_VERSION}") + # Suppport finding at least a particular version, for instance FIND_PACKAGE( Qt4 4.4.3 ) + # This implementation is a hack to avoid duplicating code and make sure we stay + # source-compatible with CMake 2.6.x + IF( Qt4_FIND_VERSION ) + SET( QT_MIN_VERSION ${Qt4_FIND_VERSION} ) + SET( req_qt_major_vers ${Qt4_FIND_VERSION_MAJOR} ) + SET( req_qt_minor_vers ${Qt4_FIND_VERSION_MINOR} ) + SET( req_qt_patch_vers ${Qt4_FIND_VERSION_PATCH} ) + ENDIF( Qt4_FIND_VERSION ) + IF (NOT req_qt_major_vers EQUAL 4) MESSAGE( FATAL_ERROR "Invalid Qt version string given: \"${QT_MIN_VERSION}\", major version 4 is required, e.g. \"4.0.1\"") ENDIF (NOT req_qt_major_vers EQUAL 4) @@ -429,12 +470,26 @@ IF (QT_QMAKE_EXECUTABLE) MATH(EXPR req_vers "${req_qt_major_vers}*10000 + ${req_qt_minor_vers}*100 + ${req_qt_patch_vers}") MATH(EXPR found_vers "${QT_VERSION_MAJOR}*10000 + ${QT_VERSION_MINOR}*100 + ${QT_VERSION_PATCH}") - IF (found_vers LESS req_vers) - SET(QT4_QMAKE_FOUND FALSE) - SET(QT4_INSTALLED_VERSION_TOO_OLD TRUE) - ELSE (found_vers LESS req_vers) - SET(QT4_QMAKE_FOUND TRUE) - ENDIF (found_vers LESS req_vers) + # Support finding *exactly* a particular version, for instance FIND_PACKAGE( Qt4 4.4.3 EXACT ) + IF( Qt4_FIND_VERSION_EXACT ) + IF(found_vers EQUAL req_vers) + SET( QT4_QMAKE_FOUND TRUE ) + ELSE(found_vers EQUAL req_vers) + SET( QT4_QMAKE_FOUND FALSE ) + IF (found_vers LESS req_vers) + SET(QT4_INSTALLED_VERSION_TOO_OLD TRUE) + ELSE (found_vers LESS req_vers) + SET(QT4_INSTALLED_VERSION_TOO_NEW TRUE) + ENDIF (found_vers LESS req_vers) + ENDIF(found_vers EQUAL req_vers) + ELSE( Qt4_FIND_VERSION_EXACT ) + IF (found_vers LESS req_vers) + SET(QT4_QMAKE_FOUND FALSE) + SET(QT4_INSTALLED_VERSION_TOO_OLD TRUE) + ELSE (found_vers LESS req_vers) + SET(QT4_QMAKE_FOUND TRUE) + ENDIF (found_vers LESS req_vers) + ENDIF( Qt4_FIND_VERSION_EXACT ) ENDIF (qt_version_tmp) ENDIF (QT_QMAKE_EXECUTABLE) @@ -1631,11 +1686,23 @@ IF (QT4_QMAKE_FOUND) ELSE(QT4_QMAKE_FOUND) SET(QT_QMAKE_EXECUTABLE "${QT_QMAKE_EXECUTABLE}-NOTFOUND" CACHE FILEPATH "Invalid qmake found" FORCE) + + # The code below is overly complex to make sure we do not break compatibility with CMake 2.6.x + # For CMake 2.8, it should be simplified by getting rid of QT4_INSTALLED_VERSION_TOO_OLD and + # QT4_INSTALLED_VERSION_TOO_NEW IF(Qt4_FIND_REQUIRED) IF(QT4_INSTALLED_VERSION_TOO_OLD) - MESSAGE(FATAL_ERROR "The installed Qt version ${QTVERSION} is too old, at least version ${QT_MIN_VERSION} is required") + IF( Qt4_FIND_VERSION_EXACT ) + MESSAGE(FATAL_ERROR "The installed Qt version ${QTVERSION} is too old, version ${QT_MIN_VERSION} is required") + ELSE( Qt4_FIND_VERSION_EXACT ) + MESSAGE(FATAL_ERROR "The installed Qt version ${QTVERSION} is too old, at least version ${QT_MIN_VERSION} is required") + ENDIF( Qt4_FIND_VERSION_EXACT ) ELSE(QT4_INSTALLED_VERSION_TOO_OLD) - MESSAGE( FATAL_ERROR "Qt qmake not found!") + IF( Qt4_FIND_VERSION_EXACT AND QT4_INSTALLED_VERSION_TOO_NEW ) + MESSAGE(FATAL_ERROR "The installed Qt version ${QTVERSION} is too new, version ${QT_MIN_VERSION} is required") + ELSE( Qt4_FIND_VERSION_EXACT AND QT4_INSTALLED_VERSION_TOO_NEW ) + MESSAGE( FATAL_ERROR "Qt qmake not found!") + ENDIF( Qt4_FIND_VERSION_EXACT AND QT4_INSTALLED_VERSION_TOO_NEW ) ENDIF(QT4_INSTALLED_VERSION_TOO_OLD) ELSE(Qt4_FIND_REQUIRED) IF(QT4_INSTALLED_VERSION_TOO_OLD AND NOT Qt4_FIND_QUIETLY) |