abuild: try break circular dependencies

abuild

@@ -474,6 +474,11 @@ builddeps() {
 		# i = pkg:dir
 		local dir=${i#*:}
 		local pkg=${i%:*}
+
+		# break circular deps
+		[ $(realpath "$dir") = $(realpath "${APKBUILD%/*}") ] \
+			&& continue
+
 		msg "Entering $dir"
 		cd "$dir" || return 1
 		$0 -i $pkg || return 1