[FS#1260] rootfs.mk places lockfiles in buildhost filesystem

[LEDE Bugs]

A new Flyspray task has been opened.  Details are below. 

User who did this - Arjen de Korte (arjendekorte) 

Attached to Project - LEDE Project
Summary - rootfs.mk places lockfiles in buildhost filesystem
Task Type - Build Failure
Category - Toolchain
Status - Unconfirmed
Assigned To - 
Operating System - All
Severity - Laag
Priority - Normaal
Reported Version - Trunk
Due in Version - Undecided
Due Date - Undecided
Details - It looks like 'lib/functions/procd.sh' calls flock in the builhosts filesystem. This doesn't fly, see attached except from the buildlog. 

One or more files have been attached.

More information can be found at the following URL:
https://bugs.lede-project.org/index.php?do=details&task_id=1260