添加QMAKE_CXXFLAGS + = -std = c ++ 11到qt中的.pro文件不工作（在linux 12.04上） [英] Adding QMAKE_CXXFLAGS += -std=c++11 to .pro file in qt not working(on linux 12.04)

问题描述

编译器输出：

[main.o]错误1

[main.o] Error 1

cc1plus：error：unrecognized命令行选项'-std = c ++ 11'

cc1plus: error: unrecognized command line option '-std=c++11'

推荐答案

解决方案是更新系统上的古代gcc版本。事实上，我很惊讶，你有这样一个旧版本在您的12.04 Ubuntu版本。它应该有4.6.3由deault。

The solution is to update your ancient gcc version on the system. In fact, I am quite surprised that you have such an old version on your 12.04 Ubuntu variant. It should have 4.6.3 by deault.

你可以尝试是c ++ 0x而不是c ++ 11，看看是否使其工作。您还可以通过发出 man gcc 启动gcc手册，并查找精确的选项。

What you could try is c++0x instead of c++11 and see if that makes it work. You could also fire up the gcc manual by issuing man gcc and look for the precise option.

我们是，你可能只是写在你的qmake项目文件，而不是这样的原始配置：

Also, while we are it, you could probably simply write this in your qmake project file instead of such raw configurations:

CONFIG += c++11

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