<div dir="auto">What I'm suggesting is a bit narrower: I think stack should probably just ignore GHC boot packages altogether, aside from the necessary ones (I think just ghc-prim, ghc, base, and array, but you'd have to check the full GHC API to be sure). Never use them, and pretend they don't exist.</div><div class="gmail_extra"><br><div class="gmail_quote">On Apr 2, 2017 6:47 AM, "Adam Bergmark" <<a href="mailto:adam@bergmark.nl">adam@bergmark.nl</a>> wrote:<br type="attribution"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">Hi David,<div><br></div><div>As far as I know stackage doesn't have a mechanism to say "this might cause version mismatches but I promise it won't", is there even a way to do that with Cabal (which stackage uses)?</div><div><br></div><div>Cheers,</div><div>Adam</div><div><br></div></div><br><div class="gmail_quote"><div dir="ltr">On Sun, 2 Apr 2017 at 01:26 David Feuer <<a href="mailto:david.feuer@gmail.com" target="_blank">david.feuer@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="auto" class="m_2466443326021033361gmail_msg"><span style="font-family:sans-serif" class="m_2466443326021033361gmail_msg">The fact that GHC needs to have its own containers shouldn't prevent a consistent package set from using a different one. The only hypothetical problem would be if the GHC API leaked containers types, but I'm pretty sure it doesn't: they're all wrapped up in newtypes and exported abstractly, unless someone's made a mistake.</span></div><div class="gmail_extra m_2466443326021033361gmail_msg"><br class="m_2466443326021033361gmail_msg"><div class="gmail_quote m_2466443326021033361gmail_msg">On Apr 1, 2017 6:09 PM, "Sven Panne" <<a href="mailto:svenpanne@gmail.com" class="m_2466443326021033361gmail_msg" target="_blank">svenpanne@gmail.com</a>> wrote:<br type="attribution" class="m_2466443326021033361gmail_msg"><blockquote class="gmail_quote m_2466443326021033361gmail_msg" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr" class="m_2466443326021033361gmail_msg"><div class="gmail_extra m_2466443326021033361gmail_msg"><div class="gmail_quote m_2466443326021033361gmail_msg">2017-04-01 20:53 GMT+02:00 David Feuer <span dir="ltr" class="m_2466443326021033361gmail_msg"><<a href="mailto:david.feuer@gmail.com" class="m_2466443326021033361gmail_msg" target="_blank">david.feuer@gmail.com</a>></span>:<br class="m_2466443326021033361gmail_msg"><blockquote class="gmail_quote m_2466443326021033361gmail_msg" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="auto" class="m_2466443326021033361gmail_msg">It's come to my attention that Stackage doesn't have the latest and greatest versions of containers. Stackage nightly is on 0.5.7.1, and I just released 0.5.10.2. It'd be nice to get that fixed, but the containers maintainers do not have the time to take responsibility for Stackage curation. Could whoever's responsible please take care of it?</div></blockquote><div class="m_2466443326021033361gmail_msg"><br class="m_2466443326021033361gmail_msg"></div><div class="m_2466443326021033361gmail_msg">If I see this correctly, there is nothing to take care of: Stackage nightly and LTS both ship GHC 8.0.2, and that contains containers 0.5.7.1. When a new GHC is released and that ships with a new version of containers, it will be on Stackage. Apart from that, there is nothing you can do: Stackage is there to have a consistent set of packages, so containers is not even in <a href="https://github.com/fpco/stackage/blob/master/build-constraints.yaml" class="m_2466443326021033361gmail_msg" target="_blank">https://github.com/fpco/<wbr>stackage/blob/master/build-<wbr>constraints.yaml</a>, because it ships with GHC.</div><div class="m_2466443326021033361gmail_msg"><br class="m_2466443326021033361gmail_msg"></div><div class="m_2466443326021033361gmail_msg">That's at least my understanding...</div></div></div></div>
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