abuild: extend fhs check

abuild.in

@@ -781,15 +781,18 @@ targz() {
 }
 
 postcheck() {
-	local dir="$1" name="$2" i= e=0
+	local dir="$1" name="$2" i= j= e=0
 	msg "Running postcheck for $name"
 	# checking for FHS compat
 	if ! options_has "!fhs"; then
-		for i in "$dir"/srv/* "$dir"/usr/local/* "$dir"/opt/*; do
-			if [ -e "$i" ]; then
-				error "Packages must not put anything under /srv, /usr/local or /opt"
-				e=1
-			fi
+		for i in srv usr/local opt run var/run tmp var/tmp var/lock var/empty home sys proc mnt dev; do
+			for j in "$dir"/"$i"/* "$dir"/"$i"/.[!.]* "$dir"/"$i"/..?*; do
+				if [ -L "$j" ] || [ -e "$j" ]; then
+					error "Packages must not put anything under /$i"
+					e=1
+					break
+				fi
+			done
 		done
 		if [ -d "$dir"/usr/var ]; then
 			error "Found /usr/var, localstatedir is most likely wrong"