--- gss/configure.ac.orig	2014-07-17 22:37:16.926200000 +0400
+++ gss/configure.ac	2014-07-17 22:37:25.147400000 +0400
@@ -37,6 +37,8 @@
 
 # Checks for programs.
 AC_PROG_CC
+AC_USE_SYSTEM_EXTENSIONS
+AM_PROG_AR
 gl_EARLY
 libgl_EARLY
 srcgl_EARLY