diff --git a/configure b/configure
index f0e78a2419..fd8b87bf78 100755
--- a/configure
+++ b/configure
@@ -1,5 +1,5 @@
 #! /bin/sh
-# From configure.ac Revision: 235657 .
+# From configure.ac Revision: 236633 .
 # Guess values for system-dependent variables and create Makefiles.
 # Generated by GNU Autoconf 2.64 for asterisk 1.6.
 #
@@ -12596,10 +12596,11 @@ CFLAGS="${CFLAGS} -Werror -Wmissing-braces"
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <pthread.h>
+     void empty(){}
 int
 main ()
 {
-pthread_once_t once = PTHREAD_ONCE_INIT;
+pthread_once_t once = PTHREAD_ONCE_INIT; pthread_once(&once, empty);
   ;
   return 0;
 }
diff --git a/configure.ac b/configure.ac
index ea5c768d63..e9c39f5415 100644
--- a/configure.ac
+++ b/configure.ac
@@ -481,8 +481,9 @@ saved_CFLAGS="${CFLAGS}"
 CFLAGS="${CFLAGS} -Werror -Wmissing-braces"
 AC_COMPILE_IFELSE(
   [AC_LANG_PROGRAM(
-    [#include <pthread.h>],
-	[pthread_once_t once = PTHREAD_ONCE_INIT;])
+    [#include <pthread.h>
+     void empty(){}],
+	[pthread_once_t once = PTHREAD_ONCE_INIT; pthread_once(&once, empty);])
   ],[
     AC_MSG_RESULT(no)
     ac_cv_pthread_once_needsbraces="no"