From https://gerrit.wikimedia.org/r/#/c/181063/
Change configuration of MobileFrontend build files to not default to a MW_INSTALL_PATH and rather just bail out loudly when the environment variable is not found.
This probably involves modifying Makefile and Gruntfile.
Jdlrobson Dec 19 5:58 PM Let's be careful here. Ideally this should be the value used by Jenkins since that is the end goal (https://trello.com/c/o79gX3x5) In my personal .profile I have `export MW_INSTALL_PATH=/Users/jrobson/git/vagrant/mediawiki` and ideally this value shouldn't be set. Maybe we shouldn't have a default at all? --- Phuedx Dec 19 6:02 PM Patch Set 2: I'd go one further: bail immediately – with a clear error message (!) – if it ain't set.