在Qt，QtCreator和QMake中配置GCC编译器切换 [英] Configuring the GCC compiler switches in Qt, QtCreator, and QMake

问题描述

我最近尝试使用 Qt Creator 1.3.2，Qt 4.6.2和GCC 4.4.0（32）位版本）在Windows 7（64位）上使用一些实验C ++ 0x扩展编译应用程序，并遇到以下（致命）错误：

I recently tried to use Qt Creator 1.3.2, Qt 4.6.2, and GCC 4.4.0 (32-bit version) on Windows 7 (64-bit) to compile an application using some of the experimental C++0x extensions and encountered the following (fatal) error:

此文件需要编译器和库支持即将到来的
ISO C ++标准C ++ 0x。此支持目前是实验性的，必须使用-std = c ++ 0x或-std = gnu ++ 0x编译器选项启用
。

This file requires compiler and library support for the upcoming ISO C++ standard, C++0x. This support is currently experimental, and must be enabled with the -std=c++0x or -std=gnu++0x compiler options.

在我搜索解决方案时，我遇到了线程 qmake和编译器标志？ ，并将以下内容添加到.pro文件中：

In my search for a solution, I came across the thread qmake and compiler flags?, and added the following to the .pro file:

CXXFLAGS += -std=c++0x

但这似乎没有什么区别。

but that didn't seem to make a difference.

所以，我希望有一些标签，我需要添加到.pro（项目）文件，但我从来没有搞砸的GCC编译器开关在Qt，QMake ，和QtCreator之前，我不确定正确的调用/咒语。所以，我的问题是如何使用QtCreator，QMake和Qt时设置GCC编译器开关？

So, I expect there's some tag I need to add to the .pro (project) file, but I've never messed with the GCC compiler switches in Qt, QMake, and QtCreator before, and I am uncertain about the proper invokation / incantation. So, my question is how do you set GCC compiler switches when using QtCreator, QMake, and Qt?

推荐答案

请阅读手册。您不必在.pro文件中使用 CXXFLAGS ，您需要使用 QMAKE_CXXFLAGS ，如：

It boils down to reading the manual. Instead of using CXXFLAGS in the .pro file, you need to use QMAKE_CXXFLAGS as in:

main.cpp：

#include <cinttypes>

int main() { return 0; }

main.pro：

SOURCES += main.cpp
QMAKE_CXXFLAGS += -std=c++0x

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