Pybombs warning: Do not forget to define "makewidth" after updating pybombs from older version

I just updated pybombs to the latest git version by using git remote
git pull. A new environment variable “makewidth” was introduced recently
that - if not defined - leads to an infinite number of make processes
been started and the machine freezing because of out of memory errors.
So check your config.dat if it contains a line like
if not - add it or you may have the same bad experiences I just had.
I already filed an issue on the Pybombs issuetracker.

Happy compiling in a Happy New Gnuradio Year