[racket-dev] Fwd: Bug in creating executables from DrRacket

This is a great one! It demonstrates why you should never believe eq? when
it returns #f. I had been using an eq? test to see if some language was in
a "allowed to create executables" list. But the language was passing thru
TR, which means it acquired a contract, which means it wasn't eq? anymore.
So the test was failing incorrectly.

I've pushed a fix.

Thanks,
Robby


On Sat, Jan 26, 2013 at 10:18 AM, Pierpaolo Bernardi <olopierpa at gmail.com>wrote:

> Omitted dev the first time.  Sorry for the duplicate.
>
> ---------- Forwarded message ----------
> From: Pierpaolo Bernardi <olopierpa at gmail.com>
> Date: Sat, Jan 26, 2013 at 5:16 PM
> Subject: Re: [racket-dev] Bug in creating executables from DrRacket
> To: Robby Findler <robby at eecs.northwestern.edu>
>
>
> On Sat, Jan 26, 2013 at 2:03 AM, Robby Findler
> <robby at eecs.northwestern.edu> wrote:
> > On Friday, January 25, 2013, Pierpaolo Bernardi wrote:
>
> > I'm not able to reproduce this and looking at the code, I'm not seeing
> how
> > it could happen either. FWIW, the text in the message has changed since
> the
> > version you're using so maybe there was another bugfix at that time, too.
> > Perhaps upgrading will help. Or maybe there's something important in what
> > you clicked that I am missing that would help me understand the bug.
>
> I tried also the prerelease downloaded a few days ago, when announced,
> with the same result.
> Now I'm going to check if there's something newer...
>
> Anyway, here's the exact steps which cause the behavior on my machine:
>
> - start a fresh DrRacket;
> - open a source file (same behavior with all the ones I tried)
>      for example:
>         ====
>         #lang racket
>
>         (display "hello")
>         ====
>
> - trying generating an executable gives the error.
> - press ctrl-l to open the ‘chose language’ menu;
> - press OK button, without touching anything else;
> - now generating executables work.
>
> Cheers
> P.
>
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