用-pthread自动配置 [英] autoconf with -pthread

问题描述

问候.我正在尝试创建一个autoconf配置脚本，该脚本会自动检查要使用的pthread选项，并且在使用gcc进行编译时最好指定-pthread.

Greetings. I am trying to create an autoconf configure script that automatically checks for which pthread option to use and, ideally, specifies -pthread when compiling with gcc.

我希望AX_PTHREAD可以工作，但似乎都不能在MacOS 10.6上工作.

It was my hope that AX_PTHREAD would work, but neither seems to work on MacOS 10.6.

我正在使用 http://www.nongnu.org/autoconf- archive/ax_pthread.html

出于我不了解的原因，它只是不将-pthread选项用于在Mac上构建的脚本.

For reasons that I do not understand, it just doesn't use the -pthread option for scripts build on a mac.

问题似乎是"none"正在编译且没有错误，因此ax_pthread_flags变量中的其他线程未被检查.

The problem seems to be that "none" is compiling without error, and as a result the other threads in the ax_pthread_flags variable aren't being checked.

因此，我已将-pthread案例移至"none"案例之前，并将此案例添加到case语句中:

So I've moved the -pthread case before the "none" case and added this case to the case statement:

        -pthread)
        PTHREAD_CFLAGS="-pthread"
        PTHREAD_LIBS="-pthread"
        ;;

这似乎可行，但是我不确定它是否适用于非GCC编译器.而且我什至不确定我是否应该在意.

This seems to work, but I am not sure if it will work with non-GCC compilers. And I'm not even sure if I should care.

同样令人讨厌的是，AX_PTHREAD宏仅更新CFLAGS，而不更新CPPFLAGS.

Equally annoying is the fact that the AX_PTHREAD macro only updates CFLAGS, not CPPFLAGS.

是否有更好的方法使用autoconf测试-pthread选项?

Is there a better way to test for the -pthread option using autoconf?

推荐答案

PostgreSQL的AX_PTHREAD遭黑客入侵，可以解决一些问题:

PostgreSQL has a hacked version of AX_PTHREAD that addresses some problems: http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/config/acx_pthread.m4 . PostgreSQL builds on Mac OS X, so give it a try perhaps.

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