Introduce fail-on-warning.

diff --git a/Makefile.in b/Makefile.in
index 7bf0088..83d7bfb 100644 (file)
--- a/Makefile.in
+++ b/Makefile.in
@@ -44,7 +44,7 @@ COMMIT_STRING = $(CODENAME)Gnus v$(VERSION) is released.
 
 all: lick info
 
-warn: all
+fail-on-warning: all
 
 lick:
        cd lisp && $(MAKE) EMACS="$(EMACS)" lispdir="$(lispdir)" all