Added configure check for pthread_getattr_np.
diff --git a/configure.ac b/configure.ac
index 5d37e8e..3be5d36 100644
--- a/configure.ac
+++ b/configure.ac
@@ -535,6 +535,12 @@
AC_CHECK_TYPES([pthread_rwlock_t, pthread_rwlockattr_t],,,[#define _GNU_SOURCE
#include <pthread.h>])
+dnl **** Check for pthread_getattr_np ****
+ac_save_LIBS="$LIBS"
+LIBS="$LIBS $LIBPTHREAD"
+AC_CHECK_FUNCS(pthread_getattr_np)
+LIBS="$ac_save_LIBS"
+
dnl **** Check for Open Sound System ****
AC_CHECK_HEADERS(sys/soundcard.h machine/soundcard.h soundcard.h, break)