clean up test_reference in "make clean" target since reference is now in a .tgz

diff --git a/rtest2/Makefile b/rtest2/Makefile
index ba0de75e718fc3e07b3410eb4b582824b5f17ba0..73fcfbdae93756e02f40ac1cb1128ab425e13ee8 100644 (file)
--- a/rtest2/Makefile
+++ b/rtest2/Makefile
@@ -5,4 +5,4 @@ reference:
        tclsh test.tcl reference
 
 clean:
-       rm -rf test_results test_graphs
+       rm -rf test_results test_graphs test_reference