Re: housekeeping changes

[bill-auger]

On Sun, 31 Jan 2021 12:34:43 +0100 Michał wrote:
> they would also require aliasing sed into gsed and make into gmake, 
> ....
> so I would say it's not up to us and this script to take care of this 

doing so would not be difficult or problematic - the
validate_env() function was added to warn about any common
inadequacies with the build environment, and to abstract away
the differences across distros - if people want those BSD
abstractions, they could be handled in the same way as
'RENAME_CMD'