--- revdep-rebuild.orig	2007-07-10 14:57:28.000000000 -0400
+++ revdep-rebuild	2007-07-10 16:13:56.000000000 -0400
@@ -84,7 +84,7 @@
   -q, --quiet          Be less verbose (also passed to emerge command)
   -v, --verbose        Be more verbose
   -u, --no-util UTIL   Do not use features provided by UTIL
-      --no-util=UTIL   UTIL can be one of portage-utils, pkgcore, or equery
+      --no-util=UTIL   UTIL can be one of portage-utils or pkgcore
                        or it can be a *quoted* space-delimited list.
   -L, --library NAME   Emerge existing packages that use the library with NAME
       --library=NAME   NAME can be a full path to the library or a basic
@@ -110,6 +110,9 @@
 		progress $@
 	fi
 }
+# Get the name of a package owning a file on the filesystem using one of several
+# utilities: This is a placeholder. The function is defined in get_args()
+get_file_owner() { :; }
 # Replace whitespace with linebreaks, normalize repeated '/' chars, and sort -u
 # (If any libs have whitespace in their filenames, someone needs punishment.)
 clean_var() {
@@ -204,12 +207,20 @@
 		shift
 	done
 	# Check if various utils are allowed and installed
-	if [[ $avoid_utils != *portage-utils* ]] && hash q 2> /dev/null; then
-		PORTAGE_UTILS=1
+	if [[ $avoid_utils != *portage-utils* ]] && hash qfile 2> /dev/null; then
+		get_file_owner() { qfile -qvC "$@"; }
 	elif [[ $avoid_utils != *pkgcore* ]] && hash pquery 2> /dev/null; then
-		PKGCORE=1
-	elif [[ $avoid_utils != *equery* ]] && hash equery 2> /dev/null; then
-		EQUERY=1
+		get_file_owner() { local IFS=,; pquery --nocolor --owns="$*"; }
+	# equery disabled for incompatibility with modern portage.
+	# elif [[ $avoid_utils != *equery* ]] && hash equery 2> /dev/null; then
+	# 	get_file_owner() { equery -q -C b $@; }
+	else
+		get_file_owner() {
+			local IFS=$'\n'
+			find /var/db/pkg -name CONTENTS -print0 |
+				xargs -0 grep -Fl "$*" |
+				sed 's:/var/db/pkg/\(.*\)/CONTENTS:\1:'
+		}
 	fi
 	EMERGE_OPTIONS=(${EMERGE_OPTIONS[@]/%-p/--pretend})
 	EMERGE_OPTIONS=(${EMERGE_OPTIONS[@]/%-f/--fetchonly})
@@ -519,19 +530,7 @@
 		set_trap "$LIST.4_packages*"
 		rm -f $LIST.4*
 		while read obj FILE; do
-			if [[ $PORTAGE_UTILS ]]; then
-				EXACT_PKG=$(qfile -qvC $FILE)
-			elif [[ $PKGCORE ]]; then
-				EXACT_PKG=$(pquery --nocolor --owns="$FILE")
-			elif [[ $EQUERY ]]; then
-				EXACT_PKG=$(equery -q -C b $FILE)
-			else
-				EXACT_PKG=$(
-					find /var/db/pkg -name CONTENTS |
-						xargs grep -Fl "obj $FILE " |
-						sed -e 's:/var/db/pkg/\(.*\)/CONTENTS:\1:g'
-				)
-			fi
+			EXACT_PKG=$(get_file_owner $FILE)
 			if [[ $EXACT_PKG ]]; then
 				# Strip version information
 				PKG="${EXACT_PKG%%-r[[:digit:]]*}"
@@ -583,19 +582,7 @@
 	elif [[ -rs $LIST.3_rebuild ]]; then
 		rebuildList=" $(<"$LIST.3_rebuild") "
 		rebuildList=(${rebuildList//[[:space:]]obj[[:space:]]/ })
-		if [[ $PORTAGE_UTILS ]]; then
-			qfile -qvC ${rebuildList[@]}
-		elif [[ $PKGCORE ]]; then
-			IFS=,
-			pquery --nocolor --owns="${rebuildList[*]}"
-			IFS="$oIFS"
-		elif [[ $EQUERY ]]; then
-			equery -q -C b ${rebuildList[@]}
-		else
-			find /var/db/pkg -name CONTENTS |
-				xargs grep -Fl "$rebuildList" |
-				sed 's:/var/db/pkg/\(.*\)/CONTENTS:=\1:'
-		fi > $LIST.4_ebuilds
+		get_file_owner "${rebuildList[@]}" > $LIST.4_ebuilds
 		einfo "Generated new $LIST.4_ebuilds"
 	else
 		einfo 'Nothing to rebuild.'