From a5ca1651a1b564b59a104236d9552d9ae75faf3e Mon Sep 17 00:00:00 2001
From: Jim Meyering <meyering@redhat.com>
Date: Sun, 20 Dec 2009 17:41:12 +0100
Subject: [PATCH] build: add a syntax-check

* cfg.mk (sc_prohibit_obsolete_HAVE_HEADER_H): New rule.
---
 cfg.mk | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/cfg.mk b/cfg.mk
index d6197e8..ce02851 100644
--- a/cfg.mk
+++ b/cfg.mk
@@ -41,3 +41,10 @@ bootstrap-tools = autoconf,automake,gnulib
 export VERBOSE = yes
 
 old_NEWS_hash = 22b19691660f1870cec5f64b2c0e4641
+
+sc_obs_header_regex = \
+  \<(STDC_HEADERS|HAVE_(LIMITS|STRING|UNISTD|STDLIB)_H)\>
+sc_prohibit_obsolete_HAVE_HEADER_H:
+	@re='^[	 ]*#[	 ]*(el)?if.*$(sc_obs_header_regex)' \
+	msg='remove the above obsolete #if...HAVE_HEADER_H test(s)' \
+	  $(_prohibit_regexp)
-- 
2.47.2