=== modified file 'overlay/scripts/update_profiles'
--- overlay/scripts/update_profiles	2013-05-16 12:43:04 +0000
+++ overlay/scripts/update_profiles	2013-05-15 17:42:18 +0000
@@ -1,22 +1,31 @@
-#!/bin/bash
+#!/bin/zsh
 package_set=()
+package_use=()
 
 scan_profile() {
 	local d parent
-	d="$(realpath "$1")"
-	[[ -r "$d/parent" ]] && while read parent; do
-		if [[ "$parent" == /* ]]; then
-			scan_profile "$ROOT$parent"
+	d=$1:A
+	[[ -r $d/parent ]] && while read parent; do
+		if [[ $parent == /* ]]; then
+			scan_profile $parent
 		else
-			scan_profile "$d/$parent"
+			scan_profile $d/$parent
 		fi
-	done < "$d/parent"
-	[[ -r "$d/package.set" ]] && package_set+=( "$d/package.set" )
+	done < $d/parent
+	[[ -r $d/package.set ]] && package_set+=( $d/package.set )
+	[[ -r $d/package.use ]] && package_use+=( $d/package.use )
 }
 
-scan_profile "$ROOT/etc/portage/make.profile"
+if (($#package_set)); then
+	mkdir /etc/portage/sets
+	cat $package_set >/etc/portage/sets/profile
+fi
 
-if [[ -n "$package_set" ]]; then
-	[[ -d "$ROOT/etc/portage/sets" ]] || mkdir "$ROOT/etc/portage/sets"
-	sort -u "$package_set" >"$ROOT/etc/portage/sets/profile"
+if (($#package_use)); then
+	if [[ -f /etc/package.use ]]; then
+		mv -v /etc/package.use{,.custom.$$} || exit 1
+		mkdir -v /etc/package.use || exit 1
+		mv -v /etc/package.use{.custom.$$,/custom}
+	fi
+	cat $package_use >/etc/portage/sets/profile
 fi