Description of problem:

Fails to compile due to non-portable mutex types in rpcsvc.c.  Could we please add a autoconf check for non-portable mutex types?

Version-Release number of selected component (if applicable):
7.1

How reproducible:
Easy

Steps to Reproduce:
1.Try to compile on system without PTHREAD_MUTEX_ADAPTIVE_NP mutex type
2.
3.

Actual results:
Fails to compile - unknown type PTHREAD_MUTEX_ADAPTIVE_NP type in rpcsvc.c

Expected results:
Check for non-portable types

Additional info:

Check should be easy.  Something like

AC_MSG_CHECKING([for PTHREAD_MUTEX_ADAPTIVE_NP])
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
#define _GNU_SOURCE
#include <pthread.h>
]], [[
  return (PTHREAD_MUTEX_ADAPTIVE_NP);
]])], [
AC_MSG_RESULT([yes])
AC_DEFINE([HAVE_PTHREAD_MUTEX_ADAPTIVE_NP], 1,
          [Define to 1 if system has the `PTHREAD_MUTEX_ADAPTIVE_NP'.])
], [
AC_MSG_RESULT([no])
])