Use -o instead of > so that the target is not created if curl fails.

Author: bert-github

css3-layout/Makefile

@@ -16,13 +16,13 @@ cdate = $(shell date +%Y%m%d)
 %.html: %.src.html
 	@echo "Calling post-processor to generate $@..."
 	@curl -K ~/.curl-w3.org -s -S -F output=html -F file=@$< -F group=CSS \
-	-F method=file -F date=$(cdate) -F status=$(status) \
-	http://cgi.w3.org/member-bin/process.cgi >$@
+	-F method=file -F date=$(cdate) -F status=$(status) -o $@ \
+	http://cgi.w3.org/member-bin/process.cgi
 %.err: %.src.html
 	@echo "Calling post-processor to check $<..."
 	@curl -K ~/.curl-w3.org -s -S -F output=err -F file=@$< -F group=CSS \
-	-F method=file -F date=$(cdate) -F status=$(status) \
-	http://cgi.w3.org/member-bin/process.cgi >$@
+	-F method=file -F date=$(cdate) -F status=$(status) -o $@ \
+	http://cgi.w3.org/member-bin/process.cgi
 
 # For Dispositions of Comments in css3-background:
 
@@ -49,7 +49,7 @@ update:
 	hg pull -u
 
 clean:
-	-rm Overview.html Overview.err
+	rm -f Overview.html Overview.err