diff -r 0c00935f1bf1 configure
--- a/configure	Sat Dec 07 13:54:32 2013 +0200
+++ b/configure	Tue Dec 17 01:45:06 2013 -0600
@@ -6398,7 +6398,7 @@
 	ac_cv_pic="-fPIC -DPIC -shared"
 	case `uname -s` in
 		Darwin*)
-		ac_cv_pic="-bundle -flat_namespace -undefined suppress"
+		ac_cv_pic="-std=gnu89 -bundle -flat_namespace -undefined suppress"
 		;;
 		HP-UX*)
 		ac_cv_pic="-fPIC"
diff -r 0c00935f1bf1 configure.ac
--- a/configure.ac	Sat Dec 07 13:54:32 2013 +0200
+++ b/configure.ac	Tue Dec 17 01:45:06 2013 -0600
@@ -119,7 +119,7 @@
 	ac_cv_pic="-fPIC -DPIC -shared"
 	case `uname -s` in
 		Darwin*[)]
-		ac_cv_pic="-bundle -flat_namespace -undefined suppress"
+		ac_cv_pic="-std=gnu89 -bundle -flat_namespace -undefined suppress"
 		;;
 		HP-UX*[)]
 		ac_cv_pic="-fPIC"