Mark clean target as PHONY

This target does not create any files.
davorg · Mar 30, 2016 · 9301f39 · 9301f39
1 parent ef6ba4e
commit 9301f39
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/Makefile b/Makefile
@@ -21,3 +21,4 @@ $(book).pdf: $(book).epub
 clean:
 	rm -f $(book).{pdf,epub,mobi}
 
+.PHONY: clean