Bump the required autoconf version to 2.62

This is required by the introspection macro

diff --git a/configure.in b/configure.in
index a5ff02c..1850465 100644 (file)
--- 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