[Libguestfs] [PATCH libguestfs] maint: remove a subsumed syntax-check rule

[Jim Meyering]

Hi Rich,

I noticed that libguestfs's cfg.mk had an old (and relatively
inefficient) version of the rule that checks for empty lines at EOF.
The one in maint.mk is much more efficient:

>From cf93f04a980ec01ef37db9a0d4c7b99015169eee Mon Sep 17 00:00:00 2001
From: Jim Meyering <meyering at redhat.com>
Date: Mon, 17 Sep 2012 11:49:34 +0200
Subject: [PATCH libguestfs] maint: remove a subsumed syntax-check rule

* cfg.mk (sc_prohibit_trailing_blank_lines): Remove rule.  It is now
subsumed by the much more efficient sc_prohibit_empty_lines_at_EOF
rule in gnulib's maint.mk.
---
 cfg.mk | 12 +-----------
 1 file changed, 1 insertion(+), 11 deletions(-)

diff --git a/cfg.mk b/cfg.mk
index e619f0a..3b0b45e 100644
--- a/cfg.mk
+++ b/cfg.mk
@@ -1,5 +1,5 @@
 # Customize Makefile.maint.                           -*- makefile -*-
-# Copyright (C) 2003-2009 Free Software Foundation, Inc.
+# Copyright (C) 2003-2012 Free Software Foundation, Inc.

 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -115,16 +115,6 @@ sc_prohibit_gethostby:
 	halt='use getaddrinfo, not gethostby*'				\
 	  $(_sc_search_regexp)

-# Disallow trailing blank lines.
-sc_prohibit_trailing_blank_lines:
-	@$(VC_LIST_EXCEPT)						\
-	  | xargs perl -ln -0777 -e					\
-	      '-f $$ARGV or next; /\n\n+$$/ and print $$ARGV' > $@-t
-	@found=0; test -s $@-t && { found=1; cat $@-t 1>&2;		\
-	  echo '$(ME): found trailing blank line(s)' 1>&2; };		\
-	rm -f $@-t;							\
-	test $$found = 0
-
 # We don't use this feature of maint.mk.
 prev_version_file = /dev/null

--
1.7.12.464.g83379df