如何在Mac OS X上部署Phonon相关的Qt4/PyQt4/python应用程序？

Question

我写过一个跨平台的Qt4/PyQt4/python应用程序，即MyGreatApp，它的最后一个版本需要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，更常见的情况是在任何安装了Qt4.4的Mac上。然而，无辜的机器却无法加载声子：

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

似乎很明显，某些依赖关系保留在可执行文件中。下面是包括声子的东西：

$ 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 

这里是install_name_tool命令我调用构建应用程序后：

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 

什么不顺心，或者任何暗示，以提高诊断的任何想法？

Answer 1

如果你看看Qt的源代码发布（你可能只需要下载它并自己构建它），那么它构建的一个小实用程序称为“macdeploy_qt”。如果你用你的可执行文件设置了一个应用程序包（比如创建一个myapp.app，并将'myapp'可执行文件放在myapp.app/Contents/MacOS中）并运行'macdeploy_qt myapp.app'，它会分析完所有的install_name_tool运行和框架资源移动给你，交给你一个应用程序包，应该“只是工作”（沉重的报价:)）。