Question

我编写了一个跨平台的Qt4 / PyQt4 / python应用程序，即MyGreatApp，其最后一个版本需要Phonon模块。 MyGreatApp在我自己的机器上运行得很好，在Mac OS X 10.6 Snow Leopard下，更常见的是在任何安装了Qt4.4的mac上运行。然而，无辜的机器无法加载Phonon：

WARNING: bool Phonon::FactoryPrivate::createBackend() phonon backend plugin could not be loaded

很明显，某些依赖项仍然存在于可执行文件中。这是包含的声子内容：

$ find . -name "*phonon*" -print
./Contents/Frameworks/phonon.framework
./Contents/Frameworks/phonon.framework/phonon
./Contents/Frameworks/phonon.framework/phonon.prl
./Contents/Frameworks/phonon.framework/Versions/4/phonon
./Contents/plugins/phonon_backend
./Contents/plugins/phonon_backend/libphonon_qt7.dylib
./Contents/Resources/lib/python2.5/lib-dynload/PyQt4/phonon.so

这是我在构建应用程序后调用的install_name_tool命令：

PLUGINSREF = /usr/local/Trolltech/Qt-4.4.3/plugins
QTLIB      = /usr/local/Trolltech/Qt-4.4.3/lib
PLUGINS    = dist/MyGreatApp.app/Contents/plugins
RESOURCES  = dist/MyGreatApp.app/Contents/Resources
PHONON     = phonon.framework/Versions/4/phonon
QTCORE     = QtCore.framework/Versions/4/QtCore
QTGUI      = QtGui.framework/Versions/4/QtGui

echo "Installing plugins"
mkdir -p "$PLUGINS"/phonon_backend
cp $PLUGINSREF/phonon_backend/libphonon_qt7.dylib "$PLUGINS"/phonon_backend
install_name_tool -change $QTLIB/$PHONON @executable_path/../Frameworks/$PHONON "$PLUGINS"/phonon_backend/libphonon_qt7.dylib
install_name_tool -change $QTLIB/$QTCORE @executable_path/../Frameworks/$QTCORE "$PLUGINS"/phonon_backend/libphonon_qt7.dylib
install_name_tool -change $QTLIB/$QTGUI  @executable_path/../Frameworks/$QTGUI  "$PLUGINS"/phonon_backend/libphonon_qt7.dylib

echo "Adding Panther compatibility when building on Leopard"
install_name_tool -change /System/Library/Frameworks/CoreVideo.framework/Versions/A/CoreVideo  /System/Library/Frameworks/QuartzCore.framework/Versions/A/QuartzCore "$PLUGINS"/phonon_backend/libphonon_qt7.dylib

echo "Installing dynamic libraries"
install_name_tool -change $QTLIB/$PHONON @executable_path/../Resources/lib/$PHONON "$RESOURCES"/lib/python2.5/lib-dynload/PyQt4/phonon.so
install_name_tool -change $QTLIB/$QTCORE @executable_path/../Resources/lib/$QTCORE "$RESOURCES"/lib/python2.5/lib-dynload/PyQt4/phonon.so
install_name_tool -change $QTLIB/$QTGUI  @executable_path/../Resources/lib/$QTGUI  "$RESOURCES"/lib/python2.5/lib-dynload/PyQt4/phonon.so

对于出了什么问题或任何改进诊断的提示有什么想法？

Answer 1

如果你查看Qt的源代码分发（你可能只需要下载它并自己构建它），它就构建了一个名为“macdeploy_qt”的小实用工具。如果您使用可执行文件设置应用程序包（即创建一个myapp.app并将'myapp'可执行文件放在myapp.app/Contents/MacOS中）并运行'macdeploy_qt myapp.app'，它将分析所有的install_name_tool运行，框架到资源为你移动，给你一个应该“正常工作”的应用程序包（重点在那里引用:)）。

如何在Mac OS X上部署依赖于Phonon的Qt4 / PyQt4 / python应用程序？

1 个答案: