[FS#590] ImageBuilder ar71xx BIN_DIR issue

[LEDE Bugs]

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

User who did this - Federico Capoano (nemesisdesign) 

Attached to Project - LEDE Project
Summary - ImageBuilder ar71xx BIN_DIR issue
Task Type - Bug Report
Category - Base system
Status - Unconfirmed
Assigned To - 
Operating System - All
Severity - Low
Priority - Very Low
Reported Version - lede-17.01
Due in Version - Undecided
Due Date - Undecided
Details - Software versions of LEDE release: lede 17 branch

Steps to reproduce:

- compile ar71xx with image builder support from lede 17 branch
- use the imagebuilder like: make image BIN_DIR=/var/www/downoads

we started testing lede-17.01 for [[http://openwisp.org|OpenWISP.org]] and we noticed a
strange issue with the image-generator.

We supply a command like:

make image PROFILE="Default" BIN_DIR="$BIN_DIR"

but the image building fails because something goes to look for binaries
in ./bin/targets/ar71xx/generic instead of
"$BIN_DIR/targets/ar71xx/generic".

If we create manually the dir with:

mkdir ./bin/targets/ar71xx/generic

The image building procedure completes successfully.

Is this desired behaviour or not?

We had to insert a workaround in our [[https://github.com/openwisp/ansible-openwisp2-imagegenerator/commit/be8602dff0e4892a7206618a3e3dba9b5154eee7|automated LEDE compilation process]].

More information can be found at the following URL:
https://bugs.lede-project.org/index.php?do=details&task_id=590