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From: Stefan Monnier <monnier@iro.umontreal.ca>
Newsgroups: gmane.emacs.devel
Subject: Re: [platform-testers] Emacs 26.2 RC1 is out!
Date: Fri, 22 Mar 2019 09:58:49 -0400
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>> >> Hmm... would there be a way to make it so configure accepts options like
>> >> 
>> >>     ./configure ... --with-xpm=ifavailable  --with-jpeg=ifavailable ...
>> >> 
>> >> so you can use a single script on all systems and it will use xpm
>> >> where available?
>> >
>> > AFAIR, that is how this worked before, and we changed that because it
>> > would cause builds without image libraries without noticing.
>> 
>> I know but what I'm proposing is to make it possible for the user to
>> explicitly say "yes, please do just that, even though it has proved
>> undesirable as a default behavior".
>
> I understood that, but AFAIK there's no other project which supports that.

Then maybe we should be trailblazers ;-) !!


        Stefan