如何在Xcode中链接动态库? [英] How can I link a dynamic library in Xcode?

问题描述

我目前正在Qt中开发一个程序，它使用库libqextserialport.1.dylib.

I am currently developing a program in Qt and it uses the library libqextserialport.1.dylib.

我构建它并以x代码运行，它又吐回来:

I build it and run in x-code and it spits back:

dyld: Library not loaded: libqextserialport.1.dylib
    Referenced from: /Users/samuelreh/Desktop/QtOpenCV/build/Debug/QtOpenCV.app/Contents/MacOS/QtOpenCV
    Reason: image not found

该库位于/Users/samuelreh/Desktop/QtOpenCV/qextserialport/build/.

The library is located in /Users/samuelreh/Desktop/QtOpenCV/qextserialport/build/.

我可以通过以下方法运行我的程序:转到可执行文件文件夹/Users/samuelreh/Desktop/QtOpenCV/build/Debug/QtOpenCV.app/Contents/MacOS/并输入:

I can run my program by changing to the executable folder /Users/samuelreh/Desktop/QtOpenCV/build/Debug/QtOpenCV.app/Contents/MacOS/ and entering:

install_name_tool -change libqextserialport.1.dylib /Users/samuelreh/Desktop/QtOpenCV/qextserialport/build/libqextserialport.1.dylib QtOpenCV

我知道除此之外，可能还有许多解决方案.有人从x代码中知道最好/最优雅/最容易做的事吗?

I know there is probably many solutions besides this. Anybody know the best / most-elegant / easiest to do from x-code?

推荐答案

如果我正确地理解了您的问题，则您的应用程序运行良好，链接时没有错误，但是在尝试启动该库时找不到.

If I understand your problem correctly, your app is building fine, no errors when linking, but when you try to launch it the library cannot be found.

这并不奇怪，因为dylib文件位于系统路径之外的任意目录中.您要么需要将其复制到/usr/lib(可能不是一个好主意)，要么将其包含在应用程序包中.后者可能是更好的方法.

That's not surprising, since the dylib file is in some arbitrary directory not on the system path. You either need to copy it into /usr/lib (probably not a good idea) or include it in the application bundle. The latter is probably the better approach.

我从未尝试过，但是显然您需要使用

I've never tried it, but apparently you need to use a Copy Files Build Phase to put the dylib inside your bundle and then configure Xcode so that your executable will know where to find it.

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