[dia] Bug 737254 - Use AC_CONFIG_HEADERS instead of AC_CONFIG_HEADER

[Hans Breuer <hans src gnome org>]

commit 6ce4151e9d26dc4652cc053557bbe58a410be32d
Author: Hans Breuer <hans breuer org>
Date:   Wed Oct 1 21:34:05 2014 +0200

    Bug 737254 - Use AC_CONFIG_HEADERS instead of AC_CONFIG_HEADER
    
    Could not find any documentation for the later, we can not use
    AM_CONFIG_HEADER long time deprecated, finally gone.

 configure.ac |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index b14c31b..df09fd7 100644
--- a/configure.ac
+++ b/configure.ac
@@ -9,7 +9,7 @@ AC_PREREQ(2.50)
 AC_REVISION($Revision: 1.288 $)
 
 dnl Specify a header configuration file
-AC_CONFIG_HEADER(config.h)
+AC_CONFIG_HEADERS(config.h)
 
 AC_CANONICAL_HOST