X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=m4%2Fputenv.m4;h=c33b5b5170e8e45e9ea044a8169c5ed3045cad3d;hb=76b501132e66a15451e8d81ced31daf50d2825c3;hp=b971b1204d67d4a0b6481effab00690a93209cad;hpb=9f1f81e4362dd265a2fa54b30b16ceed123cd4e5;p=gnulib.git

diff --git a/m4/putenv.m4 b/m4/putenv.m4
index b971b1204..c33b5b517 100644
--- a/m4/putenv.m4
+++ b/m4/putenv.m4
@@ -1,5 +1,5 @@
-# putenv.m4 serial 19
-dnl Copyright (C) 2002-2012 Free Software Foundation, Inc.
+# putenv.m4 serial 20
+dnl Copyright (C) 2002-2013 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
@@ -48,3 +48,9 @@ AC_DEFUN([gl_FUNC_PUTENV],
       ;;
   esac
 ])
+
+# Prerequisites of lib/putenv.c.
+AC_DEFUN([gl_PREREQ_PUTENV],
+[
+  AC_CHECK_DECLS([_putenv])
+])