[gnome-documents] build: use AC_CONFIG_HEADERS instead of AM_CONFIG_HEADER

[Cosimo Cecchi <cosimoc src gnome org>]

commit 5d898e42e9cb386d38961fa9dedb863d50425fb2
Author: Cosimo Cecchi <cosimoc gnome org>
Date:   Tue Jan 15 09:47:20 2013 -0500

    build: use AC_CONFIG_HEADERS instead of AM_CONFIG_HEADER
    
    Silence an automake warning.

 configure.ac |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index a65d6c0..646819a 100644
--- a/configure.ac
+++ b/configure.ac
@@ -2,7 +2,7 @@ dnl -*- mode: m4 -*-
 AC_PREREQ(2.63)
 AC_INIT([gnome-documents],[3.7.3],[],[gnome-documents])
 
-AM_CONFIG_HEADER(config/config.h)
+AC_CONFIG_HEADERS([config/config.h])
 AC_CONFIG_SRCDIR([src/main.js])
 AC_CONFIG_MACRO_DIR([m4])
 AC_CONFIG_AUX_DIR([config])