[PATCH] correctly detect adaptive mutexes in pthreads

[Jason Evans]

On Aug 30, 2014, at 11:29 PM, Eric Wong <normalperson at yhbt.net> wrote:
> PTHREAD_MUTEX_ADAPTIVE_NP is an enum on glibc and not a macro,
> we must test for their existence by attempting compilation.

Integrated: https://github.com/jemalloc/jemalloc/commit/4dcf04bfc03b9e9eb50015a8fc8735de28c23090

Thanks,
Jason