From 1a7f64b157c659653f15903b57cd6dc9b68156e5 Mon Sep 17 00:00:00 2001
From: Jim Meyering <meyering@redhat.com>
Date: Sat, 22 Mar 2008 18:33:15 +0100
Subject: portability: work around a "busybox sed" limitation

* configure.ac: While every other sed tested supports usage like
'/\(re\)/{s//\1/;...<NEWLINE>}', and POSIX appears to requires this,
busybox's sed does not support it.  So duplicate the regexp:
'/\(re\)/{s/\(re\)/\1/;...<NEWLINE>}'.  Reported by Vincent Lefevre:
<http://thread.gmane.org/gmane.comp.gnu.coreutils.bugs/13013>.
---
 configure.ac | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/configure.ac b/configure.ac
index cc4e15295..14505fc52 100644
--- a/configure.ac
+++ b/configure.ac
@@ -280,7 +280,8 @@ no_install_progs_default=`echo "$t"|sed 's/ $//'`
 # The compromise is to ensure that the space-separated list extracted
 # above matches the literal 2nd argument below.
 c="$srcdir/configure.ac"
-t=`sed -n '/^g''l_INCLUDE_EXCLUDE_PROG(.* [\[\(.*\)\]])/{s//\1/;s/,/ /gp
+re='^g''l_INCLUDE_EXCLUDE_PROG(.* [\[\(.*\)\]])'
+t=`sed -n '/'"$re"'/{s/'"$re"'/\1/;s/,/ /gp
 }' $c`
 case $t in
   $no_install_progs_default) ;;
-- 
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