Re: [PATCH] build: ruby: Add 'gem-flags' key to ruby build system

["Thompson, David" <dthompson2@worcester.edu>]

On Sun, Jul 19, 2015 at 4:44 PM, Ludovic Courtès <ludo@gnu.org> wrote:
> Pjotr Prins <pjotr.public12@thebird.nl> skribis:
>
>> On Sat, Jul 18, 2015 at 05:20:28PM +0200, Ludovic Courtès wrote:
>>> >      (zero? (system* "gem" "install" "--local"
>>> > -                    "--bindir" (string-append out "/bin")))))
>>> > +                    "--bindir" (string-append out "/bin") "--"
>>> > +                    (string-join (cond (null? gem-flags)('())(gem-flags)))))))
>>>
>>> , and ‘gem-flags’ is not a procedure so it cannot be called.  So
>>> I’ve changed that, also removing the “--”.  Pushed as 6e9f291.
>>
>> The "--" is required when gem-flags is passed in. It is optional when
>> gem-flags is empty. Do you think gem authors should always prepend the
>> "--" in front of the other options? I would think it is a builder
>> thing if we can abstract it away. Right? If that is so, we can leave it
>> there since it is harmless if gem-flags is empty.
>
> My guess is that there are options like --bindir (maybe “--docdir”?) for
> which “--” does not need to be added, and others for which it is
> needed.  That’s why I left it out (also: users can easily add “--” but
> cannot remove it if it’s hard-coded.)
>
> Now, Dave and you definitely know this better than me, so I’ll rely on
> your judgment.  Thoughts?

I don't really use the 'gem' tool directly most of the time, but not
hardcoding '--' sounds reasonable based on your thoughts above.

- Dave