--- configure.orig	2016-12-17 19:13:08 UTC
+++ configure
@@ -20532,6 +20532,7 @@ $as_echo_n "checking for guile-2.0 >= 2.
             { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
             succeeded=yes
+            GUILE_EFFECTIVE_VERSION=1.8
 
             { $as_echo "$as_me:${as_lineno-$LINENO}: checking GUILE_CFLAGS" >&5
 $as_echo_n "checking GUILE_CFLAGS... " >&6; }