Autotools 检查 C++11 [英] Autotools check for C++11

问题描述

我使用 AX_CXX_COMPILE_STDCXX_0X(可以查看 autoconf-archive)来检查编译器的 C++11 功能.它正确地确定需要 -std=c++0x，但没有将其添加到 CXXFLAGS.我查看了宏源，它实际上进行了检查，但随后恢复了以前的标志.

I use AX_CXX_COMPILE_STDCXX_0X(can look on autoconf-archive) to check for c++11 capabilities of the compiler. It correctly determines that -std=c++0x required, but does not add it to CXXFLAGS. I took a look at the macro source and it actually checks but then restores previous flags.

我应该怎么做才能将 CXXFLAGS 设置为能够编译 c++11 源代码?

What should I do to get CXXFLAGS set to be able to compile c++11 source?

仅仅将 -std=c++0x 添加到 AM_CXXFLAGS 并不是一个好的解决方案，因为我想把编译器编译的负担放在 C+ 中autoconf 开发人员的 +11 模式，而不是我.

Just adding -std=c++0x to AM_CXXFLAGS is not nice solution, because I'd like to put the burden of making the compiler compile in C++11 mode on the autoconf developers, not me.

推荐答案

您要找的已经制作成 AX_CXX_COMPILE_STDCXX_11，autoconf-archive.它将向环境添加所需的选项(以前通过 CXXFLAGS，现在通过 CXX)并在没有 C++11 支持时出错.

What you're looking for has already been made as AX_CXX_COMPILE_STDCXX_11, part of autoconf-archive. It will add the required option to the environment (formerly through CXXFLAGS, now through CXX) and error out if no C++11 support is available.

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