[m-rev.] for review: delete references to Erlang in the compiler

[Zoltan Somogyi]

2020-10-28 13:27 GMT+11:00 "Julien Fischer" <jfischer at opturion.com>:
> That's true for foreign_code etc; however non erlang grade users may
> have --libgrades-exclude erlang in their Mercury.options file (i.e.
> becaue the current compiler breaks with the erlang grade when doing make install.)

I can add a "we deleted support for Erlang" addendum to the error message
for the unrecognized language in --libgrades-{include,exclude}.

But tell me: why would anyone add --libgrades-exclude erlang? Wouldn't
it be simpler just to not list erlang among the list of grades to install?
I guess I don't understand the rationale of the --libgrades-exclude option
itself, for any grade component.

Zoltan.