From 0c089cf264eb94a7162ac157eb1dee3f3ac578a4 Mon Sep 17 00:00:00 2001
From: P. J. McDermott <pjm@nac.net>
Date: Mon, 08 Oct 2012 20:52:47 -0400
Subject: Improve IFS setting in find_dep_*() in configure.

---
(limited to 'configure')

diff --git a/configure b/configure
index 1302b59..31a9185 100755
--- a/configure
+++ b/configure
@@ -244,20 +244,20 @@ find_dep_cmd()
 
 	${quiet} || printf 'checking for %s... ' "${dep}"
 
-	_old_ifs="${IFS}"
-	IFS=:
+	IFS=':'
 
 	for _element in ${PATH}; do
+		unset IFS
 		: ${_element=-.}
 		if [ -f "${_element}/${_dep}" -a -x "${_element}/${_dep}" ]; then
 			${quiet} || printf '%s/%s\n' "${_element}" "${_dep}"
 			eval "${_dep}"=\"${_element}/${_dep}\"
-			IFS="${_old_ifs}"
 			return 0
 		fi
 	done
 
-	IFS="${_old_ifs}"
+	unset IFS
+
 	${quiet} || printf 'not found\n'
 	missing_deps='true'
 	return 1
@@ -269,20 +269,20 @@ find_dep_lib()
 
 	${quiet} || printf 'checking for %s... ' "${dep}"
 
-	_old_ifs="${IFS}"
-	IFS=:
+	IFS=':'
 
 	for _element in ${libdir}:${PATH}; do
+		unset IFS
 		: ${_element=-.}
 		if [ -f "${_element}/${_dep}" -a -x "${_element}/${_dep}" ]; then
 			${quiet} || printf '%s/%s\n' "${_element}" "${_dep}"
 			eval "${_dep}"=\"${_element}/${_dep}\"
-			IFS="${_old_ifs}"
 			return 0
 		fi
 	done
 
-	IFS="${_old_ifs}"
+	unset IFS
+
 	${quiet} || printf 'not found\n'
 	missing_deps='true'
 	return 1
--
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