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.

diff --git a/configure.ac b/configure.ac
index 477aa7cda8e379e9ad85ecd7da60dac3572be566..17023af81d2b6bf2f276c3f59a12f3e2fac58869 100644 (file)
--- 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+])