Silence silly autoconf warning

This commit was SVN r23812.
2010-09-28 22:24:25 +00:00 · 2010-09-28 22:24:25 +00:00 · a8c426abc8
--- a/configure.ac
+++ b/configure.ac
@ -32,6 +32,7 @@ m4_include([config/autogen_found_items.m4])
 # Load the version code.  Because this is also used directly as a
 # shell script, no ac_defun
 m4_include([config/opal_get_version.m4])
+AC_LANG([C])

 # Init autoconf