X-Git-Url: https://git.xandkar.net/?a=blobdiff_plain;f=exercises%2Fch01%2FMakefile;fp=exercises%2Fch01%2FMakefile;h=291230982a67e2d9e0b8076eb40a8dceab4e8b59;hb=06d3ef4a3b9b885a6e402327188d8abb152055f2;hp=d376e05c2f3ed048bf478b7be4f7e224694b711d;hpb=b743073dd14888990ca5a144e3b745ff9e4f4d84;p=tiger.ml.git

diff --git a/exercises/ch01/Makefile b/exercises/ch01/Makefile
index d376e05..2912309 100644
--- a/exercises/ch01/Makefile
+++ b/exercises/ch01/Makefile
@@ -21,10 +21,13 @@ build : $(EXECUTABLES)
 	$(OCAMLC_BYTE) -c $<
 
 clean:
-	rm -f $(EXECUTABLES)
+	rm -f $(EXECUTABLES) tree.dot  # There's also tree.png, but I'm keeping it.
 
-tree.png: tree
-	./tree a b c d e f g h i j k l m n o p q r s t u v foo bar kgkvbkvg lkhjlk gfjyfjf fdtrdchfhtr trhfgfch hjlilijhl iygkyugkgkhy | neato -T png > tree.png
+tree.dot: tree
+	./tree a b c d e f g h i j k l m n o p q r s t u v foo bar kgkvbkvg lkhjlk gfjyfjf fdtrdchfhtr trhfgfch hjlilijhl iygkyugkgkhy > tree.dot
+
+tree.png: tree.dot
+	neato -T png tree.dot > tree.png
 
 demo_unbalanced: tree.png
 	sxiv ./tree.png