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@@ -2,11 +2,11 @@
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# This module can be used to find Qt4.
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# The most important issue is that the Qt4 qmake is available via the system path.
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# This qmake is then used to detect basically everything else.
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-# This module defines a number of key variables and macros. First is
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-# QT_USE_FILE which is the path to a CMake file that can be included to compile
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-# Qt 4 applications and libraries. By default, the QtCore and QtGui
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+# This module defines a number of key variables and macros.
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+# First is QT_USE_FILE which is the path to a CMake file that can be included
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+# to compile Qt 4 applications and libraries. By default, the QtCore and QtGui
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# libraries are loaded. This behavior can be changed by setting one or more
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-# of the following variables to true:
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+# of the following variables to true before doing INCLUDE(${QT_USE_FILE}):
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# QT_DONT_USE_QTCORE
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# QT_DONT_USE_QTGUI
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# QT_USE_QT3SUPPORT
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@@ -30,10 +30,21 @@
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# QT_USE_QTXMLPATTERNS
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# QT_USE_PHONON
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#
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-# If you are using Qt4 via UseQt4.cmake instead of FIND_PACKAGE(Qt4), all the
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-# libraries required are stored in the variable QT_LIBRARIES.
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-# Add this variable to your TARGET_LINK_LIBRARIES. Includes and definitions
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-# needed for compiling Qt code are then already set up by including the QT_USE_FILE.
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+# The file pointed to by QT_USE_FILE will set up your compile environment
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+# by adding include directories, preprocessor defines, and populate a
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+# QT_LIBRARIES variable containing all the Qt libraries and their dependencies.
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+# Add the QT_LIBRARIES variable to your TARGET_LINK_LIBRARIES.
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+#
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+# Typical usage could be something like:
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+# FIND_PACKAGE(Qt4)
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+# SET(QT_USE_QTXML 1)
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+# INCLUDE(${QT_USE_FILE})
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+# ADD_EXECUTABLE(myexe main.cpp)
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+# TARGET_LINK_LIBRARIES(myexe ${QT_LIBRARIES})
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+#
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+#
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+# There are also some files that need processing by some Qt tools such as moc
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+# and uic. Listed below are macros that may be used to process those files.
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#
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# macro QT4_WRAP_CPP(outfiles inputfile ... OPTIONS ...)
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# create moc code from a list of files containing Qt class with
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@@ -123,15 +134,25 @@
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# QT_QTWEBKIT_FOUND True if QtWebKit was found.
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# QT_QTXMLPATTERNS_FOUND True if QtXmlPatterns was found.
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# QT_PHONON_FOUND True if phonon was found.
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-#
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+#
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+#
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# QT_DEFINITIONS Definitions to use when compiling code that uses Qt.
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+# You do not need to use this if you include QT_USE_FILE.
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+# The QT_USE_FILE will also define QT_DEBUG and QT_NO_DEBUG
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+# to fit your current build type. Those are not contained
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+# in QT_DEFINITIONS.
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#
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# QT_INCLUDES List of paths to all include directories of
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# Qt4 QT_INCLUDE_DIR and QT_QTCORE_INCLUDE_DIR are
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# always in this variable even if NOTFOUND,
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# all other INCLUDE_DIRS are
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# only added if they are found.
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+# You do not need to use this if you include QT_USE_FILE.
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#
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+#
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+# Include directories for the Qt modules are listed here.
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+# You do not need to use these variables if you include QT_USE_FILE.
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+#
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# QT_INCLUDE_DIR Path to "include" of Qt4
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# QT_QT_INCLUDE_DIR Path to "include/Qt"
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# QT_QT3SUPPORT_INCLUDE_DIR Path to "include/Qt3Support"
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@@ -162,7 +183,9 @@
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#
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#
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# The Qt toolkit may contain both debug and release libraries.
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-# In that case, the following library variables will contain both.
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+# In that case, the following library variables will contain both.
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+# You do not need to use these variables if you include QT_USE_FILE,
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+# and use QT_LIBRARIES.
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#
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# QT_QT3SUPPORT_LIBRARY The Qt3Support library
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# QT_QTASSISTANT_LIBRARY The QtAssistant library
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Clinton Stimpson