<div dir="ltr">Thanks for the response. It appears the bug was already reported in a slightly different context. <a href="https://ghc.haskell.org/trac/ghc/ticket/11216">https://ghc.haskell.org/trac/ghc/ticket/11216</a></div><div class="gmail_extra"><br><div class="gmail_quote">On Wed, Dec 21, 2016 at 6:24 AM, Richard Eisenberg <span dir="ltr"><<a href="mailto:rae@cs.brynmawr.edu" target="_blank">rae@cs.brynmawr.edu</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Sounds like a bug to me.... and one I may have run into at some point. Would you care to file a bug report?<br>
<br>
Thanks!<br>
Richard<br>
<div><div class="h5"><br>
> On Dec 20, 2016, at 3:53 AM, Chris Smith <<a href="mailto:cdsmith@gmail.com">cdsmith@gmail.com</a>> wrote:<br>
><br>
> Hey everyone,<br>
><br>
> Can someone explain to me by GHC 8 causes list comprehension bindings to desugar to use 'fail', when RebindableSyntax is enabled in GHC 8? Note that I do not have monad comprehensions enabled. If I define fail, everything works (apparently regardless of what I define fail to do?!?), but I'd like to understand why it's necessary.<br>
><br>
> Thanks,<br>
> Chris<br>
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