Q: Why is libstdc++.a missing in my Xcode project on Mac OS X v10.4 (Tiger)?A: Your project was built using an old Xcode template which was containing an explicit reference to libstdc++.a which is no longer needed. What is libstdc++? libstdc++ is the C++ Standard Library providing functionality such as cout. Who needs libstdc++? Only C++ developers using an old version, 2.95.2 or older, of gcc. If you are not using C++ then you do not need to keep an explicit reference to libstdc++ in your project. Even if you are using C++, if you are using gcc 3 or 4, you do not need to keep an explicit reference to libstdc++ in your project either. Starting with gcc 3, the compiler will automatically link with the appropriate version of libstdc++ (if you install the Cross-Development SDKs, you will see that libstdc++ is provided for gcc 2.95.2, gcc 3.1, gcc 3.3, and gcc 4.0). Furthermore, starting with gcc 4, it's no longer libstdc++.a which is linked with automatically by the compiler but libstdc++.dylib instead. So, unless you are still using gcc 2.95.2, you should just remove the reference to libstdc++ from your project and it will build fine. Document Revision History| Date | Notes |
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| 2005-04-29 | Explains the role of libstdc++ and why you do not need it in a Xcode project. |
Posted: 2005-04-29
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