From: Eric Blake <eblake@redhat.com>
Date: Fri, 17 Sep 2010 16:39:29 +0000 (-0600)
Subject: config.status: avoid corrupting $ac_t
X-Git-Tag: v2.68~9
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=779418b2d51457502cdf2e0d601ad9329089a74c;p=thirdparty%2Fautoconf.git

config.status: avoid corrupting $ac_t

* lib/autoconf/status.m4 (_AC_OUTPUT_HEADERS_PREPARE): Use a
different name, so as not to clash with pre-2.50 usage of "$ac_t"
as a tab character.
Reported by Sam Steingold.

Signed-off-by: Eric Blake <eblake@redhat.com>
---

diff --git a/ChangeLog b/ChangeLog
index 82185b47..8067072b 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,11 @@
+2010-09-17  Eric Blake  <eblake@redhat.com>
+
+	config.status: avoid corrupting $ac_t
+	* lib/autoconf/status.m4 (_AC_OUTPUT_HEADERS_PREPARE): Use a
+	different name, so as not to clash with pre-2.50 usage of "$ac_t"
+	as a tab character.
+	Reported by Sam Steingold.
+
 2010-09-17  Bruno Haible  <bruno@clisp.org>
 
 	docs: mark several macros obsolete
diff --git a/lib/autoconf/status.m4 b/lib/autoconf/status.m4
index 07889ae3..79373882 100644
--- a/lib/autoconf/status.m4
+++ b/lib/autoconf/status.m4
@@ -749,8 +749,8 @@ _ACEOF
 # handling of long lines.
 ac_delim='%!_!# '
 for ac_last_try in false false :; do
-  ac_t=`sed -n "/$ac_delim/p" confdefs.h`
-  if test -z "$ac_t"; then
+  ac_tt=`sed -n "/$ac_delim/p" confdefs.h`
+  if test -z "$ac_tt"; then
     break
   elif $ac_last_try; then
     AC_MSG_ERROR([could not make $CONFIG_HEADERS])