(no commit message)

diff --git a/configure.ac b/configure.ac
index d05745a78e845c4673c1a2f0194bb254dbc7f8b4..9ef4dfdb734418e6debf1b5c9dccf9ec53c0c00e 100755 (executable)
--- a/configure.ac
+++ b/configure.ac
@@ -14,7 +14,7 @@
 #
 #  Copyright (C) 2003 - 2008 GraphicsMagick Group
 
-AC_PREREQ(2.59)
+AC_PREREQ(2.64)
 
 m4_define([magick_major_version], [6])
 m4_define([magick_minor_version], [6])