[PATCH] sim: common: modernize gennltvals.sh

[Tom Tromey]

>> I think it would be perfectly fine to require bash or python.

Mike> in what context ?  i assume it's off-limits for people downloading a
Mike> release and building e.g. gdb or gas.  but is it acceptable for devs
Mike> doing dev work (which is what this thing is) ?

For the ordinary build, the normal rule is pretty restrictive.  We can
rely on sh (the exact version isn't specified, but I suppose it is just
"whatever works on the subset of build machines we want to work"), and a
handful of standard Unix tools that are listed in the GNU Coding
Standards.

For maintainer stuff, I think anything goes.  We already rely on Perl
(see make-target-delegates) and Tcl (via dejagnu) and Python
(contrib/dg-extract-results.py).

Probably we should not include things using obscure languages.  Even for
the Perl script there was a complaint.

Tom