[gtk+] configure: Drop AC_PREREQ back down to 2.62

[Colin Walters <walters src gnome org>]

commit 66f0f55b628a0c756bb022f3093b576bafbdc2dc
Author: Colin Walters <walters verbum org>
Date:   Mon Dec 6 11:27:57 2010 -0500

    configure: Drop AC_PREREQ back down to 2.62
    
    Commit 39f57407639b85c7e929d349ee95eabc46d083e bumped the
    autoconf version to 2.64 with no explicit rationale.  It looks
    to me like a copy-and-paste error.  Reverting back to 2.62 (the
    previous version).  2.63 at least (RHEL6) works here.

 configure.ac |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 477aa7c..17023af 100644
--- a/configure.ac
+++ b/configure.ac
@@ -19,7 +19,7 @@ m4_define([gtk_version],
 # This is the X.Y used in -lgtk-FOO-X.Y
 m4_define([gtk_api_version], [3.0])
 
-AC_PREREQ([2.64])
+AC_PREREQ([2.62])
 AC_INIT([gtk+], [gtk_version],
         [http://bugzilla.gnome.org/enter_bug.cgi?product=gtk%2B],
         [gtk+])