# HG changeset patch
# User wenzelm
# Date 1505823771 -7200
# Node ID ed8d359d92e46ecdab311e7d493cbafd1469f769
# Parent  ad96222853fc9c1473977dc3cf50996a37f0a321
clarified signature according to Scala version;

diff -r ad96222853fc -r ed8d359d92e4 src/Pure/System/isabelle_system.ML
--- a/src/Pure/System/isabelle_system.ML	Mon Sep 18 18:26:55 2017 +0200
+++ b/src/Pure/System/isabelle_system.ML	Tue Sep 19 14:22:51 2017 +0200
@@ -6,6 +6,7 @@
 
 signature ISABELLE_SYSTEM =
 sig
+  val rm_tree: Path.T -> unit
   val mkdirs: Path.T -> unit
   val mkdir: Path.T -> unit
   val copy_dir: Path.T -> Path.T -> unit