Question

我无法在Mac上安装qwt designer插件。我已经下载了v 6.1.3，并成功完成了qmake，make和sudo make install。

问题是在/usr/local/qwt-6.1.3/lib下我只有文件qwt.framework，而不像libqwt.5.dylib，正如安装指南所说。因此我不遵循指南......

Answer 1

首先，Qwt 6现在使用框架。这意味着不再有qwt.dylib个文件。如果您想要链接到它，只需将其添加到.pro文件中：

include ( /usr/local/opt/qwt/features/qwt.prf )
CONFIG += qwt

或者你的qwt安装文件夹在哪里。

原则上，您只需设置一个环境变量，例如

QT_PLUGIN_PATH="/usr/local/opt/qwt/lib/qt5/plugins:$QT_PLUGIN_PATH"
export QT_PLUGIN_PATH

但无论出于何种原因，这对我都没有用。

发了一些头发，但这是我如何通过自制软件工作。

1）brew install qt5 qwt

2）brew cask install qt-creator

3）将插件dylib复制到Qt Creator插件文件夹：

sudo cp /usr/local/opt/qwt/lib/qt5/plugins/designer/libqwt_designer_plugin.dylib /Applications/Qt Creator.app/Contents/PlugIns/designerlibqwt_designer_plugin.dylib

4）将框架（递归地）复制到App的Frameworks文件夹中：

sudo cp -R /usr/local/Cellar/qwt/6.1.3_1/lib/qwt.framework /Applications/Qt\ Creator.app/Contents/Frameworks/

5）尝试打开表单设计器时，尝试运行Qt Creator并发现它崩溃。嘘声。

6）在插件dylib上运行otool -L：

> otool -L libqwt_designer_plugin.dylib

/usr/local/opt/qwt/lib/qt5/plugins/designer/libqwt_designer_plugin.dylib (compatibility version 0.0.0, current version 0.0.0)
/usr/local/Cellar/qwt/6.1.3_1/lib/qwt.framework/Versions/6/qwt (compatibility version 6.1.0, current version 6.1.3)
/usr/local/opt/qt5/lib/QtDesigner.framework/Versions/5/QtDesigner (compatibility version 5.7.0, current version 5.7.0)
/usr/local/opt/qt5/lib/QtWidgets.framework/Versions/5/QtWidgets (compatibility version 5.7.0, current version 5.7.0)
/usr/local/opt/qt5/lib/QtGui.framework/Versions/5/QtGui (compatibility version 5.7.0, current version 5.7.0)
/usr/local/opt/qt5/lib/QtCore.framework/Versions/5/QtCore (compatibility version 5.7.0, current version 5.7.0)
/System/Library/Frameworks/DiskArbitration.framework/Versions/A/DiskArbitration (compatibility version 1.0.0, current version 1.0.0)
/System/Library/Frameworks/IOKit.framework/Versions/A/IOKit (compatibility version 1.0.0, current version 275.0.0)
/usr/local/opt/qt5/lib/QtXml.framework/Versions/5/QtXml (compatibility version 5.7.0, current version 5.7.0)
/System/Library/Frameworks/OpenGL.framework/Versions/A/OpenGL (compatibility version 1.0.0, current version 1.0.0)
/System/Library/Frameworks/AGL.framework/Versions/A/AGL (compatibility version 1.0.0, current version 1.0.0)
/usr/lib/libc++.1.dylib (compatibility version 1.0.0, current version 307.4.0)
/usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current version 1238.0.0)

此时，您可以与实际有效的插件进行比较，qtquick：

libqquickwidget.dylib (compatibility version 0.0.0, current version 0.0.0)
@rpath/QtDesigner.framework/Versions/5/QtDesigner (compatibility version 5.7.0, current version 5.7.0)
@rpath/QtWidgets.framework/Versions/5/QtWidgets (compatibility version 5.7.0, current version 5.7.0)
@rpath/QtGui.framework/Versions/5/QtGui (compatibility version 5.7.0, current version 5.7.0)
@rpath/QtCore.framework/Versions/5/QtCore (compatibility version 5.7.0, current version 5.7.0)
/System/Library/Frameworks/DiskArbitration.framework/Versions/A/DiskArbitration (compatibility version 1.0.0, current version 1.0.0)
/System/Library/Frameworks/IOKit.framework/Versions/A/IOKit (compatibility version 1.0.0, current version 275.0.0)
@rpath/QtXml.framework/Versions/5/QtXml (compatibility version 5.7.0, current version 5.7.0)
@rpath/QtQuickWidgets.framework/Versions/5/QtQuickWidgets (compatibility version 5.7.0, current version 5.7.0)
@rpath/QtQuick.framework/Versions/5/QtQuick (compatibility version 5.7.0, current version 5.7.0)
@rpath/QtQml.framework/Versions/5/QtQml (compatibility version 5.7.0, current version 5.7.0)
@rpath/QtNetwork.framework/Versions/5/QtNetwork (compatibility version 5.7.0, current version 5.7.0)
/System/Library/Frameworks/OpenGL.framework/Versions/A/OpenGL (compatibility version 1.0.0, current version 1.0.0)
/System/Library/Frameworks/AGL.framework/Versions/A/AGL (compatibility version 1.0.0, current version 1.0.0)
/usr/lib/libc++.1.dylib (compatibility version 1.0.0, current version 120.1.0)
/usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current version 1226.10.1)

好的，我们需要链接到Qt的本地版本。您需要注意查找Qt框架的每个引用。在这种情况下，有两个地方：

1）在插件dylib中

2）在框架库中

这是我跑的地方：

sudo install_name_tool -change "/usr/local/opt/qt5/lib/QtGui.framework/Versions/5/QtGui" "@rpath/Frameworks/QtGui.framework/Versions/5/QtGui" libqwt_designer_plugin.dylib 
sudo install_name_tool -change "/usr/local/opt/qt5/lib/QtCore.framework/Versions/5/QtCore" "@rpath/Frameworks/QtCore.framework/Versions/5/QtCore" libqwt_designer_plugin.dylib 
sudo install_name_tool -change "/usr/local/opt/qt5/lib/QtWidgets.framework/Versions/5/QtWidgets" "@rpath/Frameworks/QtWidgets.framework/Versions/5/QtWidgets" libqwt_designer_plugin.dylib 
sudo install_name_tool -change "/usr/local/opt/qt5/lib/QtDesigner.framework/Versions/5/QtDesigner" "@rpath/Frameworks/QtDesigner.framework/Versions/5/QtDesigner" libqwt_designer_plugin.dylib 
sudo install_name_tool -change "/usr/local/opt/qt5/lib/QtXml.framework/Versions/5/QtXml" "@rpath/Frameworks/QtXml.framework/Versions/5/QtXml" libqwt_designer_plugin.dylib 
sudo install_name_tool -change "/usr/local/Cellar/qwt/6.1.3_1/lib/qwt.framework/Versions/6/qwt" "@rpath/Frameworks/qwt.framework/Versions/6/qwt" libqwt_designer_plugin.dylib 


sudo install_name_tool -change "/usr/local/opt/qt5/lib/QtPrintSupport.framework/Versions/5/QtPrintSupport" "@rpath/Frameworks/QtPrintSupport.framework/Versions/5/QtPrintSupport" qwt
sudo install_name_tool -change "/usr/local/opt/qt5/lib/QtWidgets.framework/Versions/5/QtWidgets" "@rpath/Frameworks/QtWidgets.framework/Versions/5/QtWidgets" qwt
sudo install_name_tool -change "/usr/local/opt/qt5/lib/QtCore.framework/Versions/5/QtCore" "@rpath/Frameworks/QtCore.framework/Versions/5/QtCore" qwt
sudo install_name_tool -change "/usr/local/opt/qt5/lib/QtGui.framework/Versions/5/QtGui" "@rpath/Frameworks/QtGui.framework/Versions/5/QtGui" qwt
sudo install_name_tool -change "/usr/local/opt/qt5/lib/QtSvg.framework/Versions/5/QtSvg" "@rpath/Frameworks/QtSvg.framework/Versions/5/QtSvg" qwt
sudo install_name_tool -change "/usr/local/opt/qt5/lib/QtConcurrent.framework/Versions/5/QtConcurrent" "@rpath/Frameworks/QtConcurrent.framework/Versions/5/QtConcurrent" qwt

请注意，在qwt中，有QtOpenGL的引用。但是这个框架并没有包含在我的Qt Creator版本中，因此我将其指向/usr/local/opt/ ...。似乎没有什么区别。

最后，我的otool的结果是：

otool -L qwt 
qwt:
    /usr/local/opt/qwt/lib/qwt.framework/Versions/6/qwt (compatibility version 6.1.0, current version 6.1.3)
    @rpath/Frameworks/QtPrintSupport.framework/Versions/5/QtPrintSupport (compatibility version 5.7.0, current version 5.7.0)
    @rpath/Frameworks/QtWidgets.framework/Versions/5/QtWidgets (compatibility version 5.7.0, current version 5.7.0)
    @rpath/Frameworks/QtGui.framework/Versions/5/QtGui (compatibility version 5.7.0, current version 5.7.0)
    @rpath/Frameworks/QtCore.framework/Versions/5/QtCore (compatibility version 5.7.0, current version 5.7.0)
    /System/Library/Frameworks/DiskArbitration.framework/Versions/A/DiskArbitration (compatibility version 1.0.0, current version 1.0.0)
    /System/Library/Frameworks/IOKit.framework/Versions/A/IOKit (compatibility version 1.0.0, current version 275.0.0)
    @rpath/Frameworks/QtSvg.framework/Versions/5/QtSvg (compatibility version 5.7.0, current version 5.7.0)
    /usr/local/opt/qt5/lib/QtOpenGL.framework/Versions/5/QtOpenGL (compatibility version 5.7.0, current version 5.7.0)
    @rpath/Frameworks/QtConcurrent.framework/Versions/5/QtConcurrent (compatibility version 5.7.0, current version 5.7.0)
    /System/Library/Frameworks/OpenGL.framework/Versions/A/OpenGL (compatibility version 1.0.0, current version 1.0.0)
    /System/Library/Frameworks/AGL.framework/Versions/A/AGL (compatibility version 1.0.0, current version 1.0.0)
    /usr/lib/libc++.1.dylib (compatibility version 1.0.0, current version 307.4.0)
    /usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current version 1238.0.0)

和

otool -L libqwt_designer_plugin.dylib 
libqwt_designer_plugin.dylib:
    /usr/local/opt/qwt/lib/qt5/plugins/designer/libqwt_designer_plugin.dylib (compatibility version 0.0.0, current version 0.0.0)
    @rpath/Frameworks/qwt.framework/Versions/6/qwt (compatibility version 6.1.0, current version 6.1.3)
    @rpath/Frameworks/QtDesigner.framework/Versions/5/QtDesigner (compatibility version 5.7.0, current version 5.7.0)
    @rpath/Frameworks/QtWidgets.framework/Versions/5/QtWidgets (compatibility version 5.7.0, current version 5.7.0)
    @rpath/Frameworks/QtGui.framework/Versions/5/QtGui (compatibility version 5.7.0, current version 5.7.0)
    @rpath/Frameworks/QtCore.framework/Versions/5/QtCore (compatibility version 5.7.0, current version 5.7.0)
    /System/Library/Frameworks/DiskArbitration.framework/Versions/A/DiskArbitration (compatibility version 1.0.0, current version 1.0.0)
    /System/Library/Frameworks/IOKit.framework/Versions/A/IOKit (compatibility version 1.0.0, current version 275.0.0)
    @rpath/Frameworks/QtXml.framework/Versions/5/QtXml (compatibility version 5.7.0, current version 5.7.0)
    /System/Library/Frameworks/OpenGL.framework/Versions/A/OpenGL (compatibility version 1.0.0, current version 1.0.0)
    /System/Library/Frameworks/AGL.framework/Versions/A/AGL (compatibility version 1.0.0, current version 1.0.0)
    /usr/lib/libc++.1.dylib (compatibility version 1.0.0, current version 307.4.0)
    /usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current version 1238.0.0)

然后当你打开Qt Creator时，你应该看到：

无法在mac上安装qwt designer插件

1 个答案: