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 ，但不会将其添加到 CXXFLAGS 。我来看看宏源，它实际上检查，但恢复以前的标志。

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.

我应该怎么做以获得 CXXFLAGS 设置为能够编译c ++ 11源？

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

只需添加 -std = c ++ 0x 到 AM_CXXFLAGS 是不好的解决方案，因为我想把负担使编译器编译在C ++ 11模式在autoconf开发人员，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

您要查找的内容已经是 AX_CXX_COMPILE_STDCXX_11 。如果没有C ++ 11支持，则会向 CXXFLAGS 添加必需的选项。

What you're looking for has already been made as AX_CXX_COMPILE_STDCXX_11. It will add the required option to CXXFLAGS and error out if no C++11 support is available.

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