factor: trim using lists

[factor.git] / extra / backtrack / backtrack.factor

diff --git a/extra/backtrack/backtrack.factor b/extra/backtrack/backtrack.factor
index c7b2da90bd4c077f0dc3414015b0c193a861cc84..99f92893b818c8792c6fb9ffe9120f61a16297d4 100644 (file)
--- a/extra/backtrack/backtrack.factor
+++ b/extra/backtrack/backtrack.factor
@@ -1,7 +1,7 @@
 ! Copyright (C) 2008 William Schlieper
 ! See http://factorcode.org/license.txt for BSD license.
 
-USING: assocs combinators continuations fry kernel macros math
+USING: assocs combinators continuations kernel math
 namespaces quotations sequences summary ;
 
 IN: backtrack