This reverts commit 88e81 and effectively re-enables persistent SSH connections to speed up builds.
commit
88e8197ed7
Author: Jan Lindemann <jan@janware.com>
Date: Thu Apr 20 20:00:46 2017 +0000
projects-dir.mk: Partly disable persistent SSH
Don't use persistent SSH-connections any more for "pkg-" targets,
because, sadly, this hangs after uploading a package.
This commit puts some safeguards against hanging SSH into place, namely setting default SSH timeouts down, SSH keepalive, setting SSH BatchMode to yes.
Signed-off-by: Jan Lindemann <jan@janware.com>