Re: [gentoo-user] python build fail; undefined reference to pthread_* and sem_*

[Mike Gilbert]

On Wed, Oct 11, 2017 at 12:16 AM, Walter Dnes <waltdnes@××××××××.org> wrote:
>   This is happening with both python 2.7.12 and 3.4.5 on a 32-bit x86
> system.  Build logs are attached, along with "emerge --info" output.  I
> can't find anything relevant in bugzilla.

From the build log for 3.4.5:

checking whether pthreads are available without options... yes

This is clearly a lie; glibc requires that you pass "-pthread" to gcc
to enable pthreads. For some reason, configure is mis-detecting this.

I would try rebuilding with minimal CFLAGS.