Corrected the "check" target to not treat warnings as errors.

bert-github · bert-github · commit 85d56f11049d · 2013-04-16T19:59:14.000+02:00
diff --git a/css-overflow/Makefile b/css-overflow/Makefile
@@ -32,8 +32,8 @@ all: check Overview.html
 
 check: Overview.err
 	@cat $<
-	@grep -q '^No errors$$' $< # Force a non-zero exit code if errors
-
+	@if egrep -v '^(Warning:|\(Processed in .* seconds\)|No errors)' $<;\
+	 then false; else true; fi
 
 
 # A handy shortcut:
