--- configure.ac	2015-03-12 16:04:58.211950840 +0100
+++ /tmp/configure.ac	2015-03-12 16:04:37.481405911 +0100
@@ -223,7 +223,7 @@
 STEPMAKE_WINDOWS
 
 # guile executable for some scripts
-STEPMAKE_GUILE(OPTIONAL, 1.8.2, 1.9.0)
+STEPMAKE_GUILE(OPTIONAL, 1.8.2, 2.2.0)
 
 # perl for help2man and for mf2pt1.pl
 STEPMAKE_PERL(REQUIRED)