* configure.in: pthread_getattr_np is broken on AIX.

More specifically, the stack address and size returned are
  not correct.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@52199 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ChangeLog

@@ -1,3 +1,9 @@
+Tue Oct 20 08:12:47 2015  Rei Odaira  <Rei.Odaira@gmail.com>
+
+	* configure.in: pthread_getattr_np is broken on AIX.
+	  More specifically, the stack address and size returned are
+	  not correct.
+
 Tue Oct 20 05:54:46 2015  Eric Wong  <e@80x24.org>
 
 	* ext/fiddle/closure.c (callback): static function

configure.in

@@ -2801,11 +2801,12 @@ if test x"$enable_pthread" = xyes; then
 	AC_DEFINE(NON_SCALAR_THREAD_ID)
     fi
     AC_CHECK_FUNCS(sched_yield pthread_attr_setinheritsched \
-	pthread_getattr_np pthread_attr_get_np pthread_attr_getstack\
+	pthread_attr_get_np pthread_attr_getstack\
 	pthread_get_stackaddr_np pthread_get_stacksize_np \
 	thr_stksegment pthread_stackseg_np pthread_getthrds_np \
 	pthread_cond_init pthread_condattr_setclock pthread_condattr_init \
 	pthread_sigmask pthread_setname_np pthread_set_name_np)
+    AS_CASE(["$target_os"],[aix*],[ac_cv_func_pthread_getattr_np=no],[AC_CHECK_FUNCS(pthread_getattr_np)])
     if test "${host_os}" = "nacl"; then
       ac_cv_func_pthread_attr_init=no
     else