在Mac OS上，最新版本的GCC（4.6）如何与Qt一起使用？ [英] How a recent version of GCC (4.6) could be used together with Qt under Mac OS?
问题描述
我的问题与此处讨论的问题有关：
在Mac OS上尝试运行基于Qt的程序时，它在辅助线程中具有OpenMP子句，它崩溃了。浏览网页后，现在我明白它是由Apple提供的gcc的相当旧版本（4.2）中的错误引起的。
然后，我下载了最新版本来自 http://hpc.sourceforge.net 的4.6版gcc试图编译这个项目，但是我得到了g ++编译器出现以下错误：无法识别的选项'-arch'
无法识别的选项'-Xarch_x86_64'
我了解到这是因为这些选项只能由自定义配置的Apple-gcc编译器解释，而不能由标准gcc解释。
任何人都可以帮我解决这个问题，并配置g ++ 4.6与Qt一起使用，以获得无bug的OpenMP支持？我承认我是Mac OS平台下的编译器和编程方面的新手，并希望从Visual Studio-Qt环境移植我的代码。
非常感谢您！ 解决方案
害怕搞乱你的Qt安装，然后改变〜/ QtSDK / Desktop / Qt / 4.8.1 / gcc / mkspecs / common / g ++ - macx.conf中的QMAKE_CFLAGS_X86_64条目。
将'-Xarch_x86_64'替换为'-arch x86_64'。
My problem is related to the one discussed here:
Is there a way that OpenMP can operate on Qt spanwed threads?
Upon trying to run my Qt-based program under Mac OS that has an OpenMP clause in a secondary thread, it crashed. After browsing through the web, now I understand that it is caused by a bug in the rather old version (4.2) of gcc supplied by Apple.
Then I downloaded the latest 4.6 version of gcc from http://hpc.sourceforge.net and tried to compile the project, but I got the following errors from g++ compiler:
unrecognized option ‘-arch’ unrecognized option ‘-Xarch_x86_64’
I learned that this is because these are options, which can be only interpreted by the custom-configured Apple-gcc compiler, but not by standard gcc.
Could anybody please help me could I overcome this issue and configure g++ 4.6 to use with Qt in order to get a bug-free OpenMP support? I admit that I'm a newbie under Mac OS platform with regard to compilers and programming and would like to port my code from Visual Studio-Qt environment.
Many thanks in advance!
If you aren't afraid of messing with your Qt installation, then change the QMAKE_CFLAGS_X86_64 entry in ~/QtSDK/Desktop/Qt/4.8.1/gcc/mkspecs/common/g++-macx.conf.
Replace ‘-Xarch_x86_64’ with ‘-arch x86_64’.
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