support for MacOS host

[tnuha]

Follow-up to #14. I mentioned in #14 (comment) that I have a fork here that should be enough to start up the flexbuild docker container, but additional support from NXP themselves for crossing the finish line would be very much appreciated. Thanks.

[andynxp]

Hi Tnuha,

The AI gives the patch as attached.

flex-installer-for-macos.patch

Could you please try it on your side since I don't have MacOS on hand?

About Docker container issue, I have no ideal what happened and how to fix it.

Thanks,
Andy

[tnuha]

Not quite. Please see #14 (comment):

It's really just a difference between getopt which isn't POSIX compliant and getopts which is afaict atm. There's also some assumptions about the structure of a filesystem, e.g. python3 living in /usr/bin/python, but those can also be easily squashed.

Admittedly I haven't looked at the docker image on a Linux host but if it's broken there as well that might be the best target for everyone due to its reproducibility.