Content-Disposition: inline MIME-Version: 1.0 X-RT-Interface: Web In-Reply-To: X-Mailer: MIME-tools 5.508 (Entity 5.508) X-RT-Original-Encoding: utf-8 Message-ID: References: Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: binary RT-Send-CC: Content-Length: 200 Ah, then I misunderstood you, sorry. Do you know which specific make implementations both support parallel processing and do not offer a mechanism to selectively disable it on a per-directory basis?