[atk] Bump the required autoconf version to 2.62

[Johan Dahlin <johan src gnome org>]

commit 87c8df4f82f29668d4d7a77893f1f7b075ad3f91
Author: Johan Dahlin <johan gnome org>
Date:   Thu Dec 10 15:43:38 2009 -0200

    Bump the required autoconf version to 2.62
    
    This is required by the introspection macro

 configure.in |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/configure.in b/configure.in
index a5ff02c..1850465 100644
--- a/configure.in
+++ b/configure.in
@@ -1,6 +1,6 @@
 dnl Process this file with autoconf to produce a configure script.
 
-AC_PREREQ(2.54)
+AC_PREREQ(2.62)
 
 dnl ==========================================================================
 dnl                              Versioning