‘m’ is a rigid type variable bound: build failure with 8.0.1.20161022 about logger HOT 8 CLOSED

12768 is a different issue. (I'm currently investigating that separately. In any case, 12768 and this issue were not caused by the same GHC commit.)

I've opened GHC Trac #12784 for this particular issue.

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Is there any reason to believe this is a bug in our package instead of in GHC itself? Have you reported this upstream?

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Nope, I've not reported it to GHC. The main reason to think it's the package is that of all of git-annex's many dependencies, this is the only one that failed to build out of the box.

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@snoyberg suggestion on IRC is

I guess all the 'm's in the default declaration should be some new variable 'n's

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may be related to https://ghc.haskell.org/trac/ghc/ticket/12768 which so far seems to be "won't fix"

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RyanGlScott on IRC has traced this to http://git.haskell.org/ghc.git/commit/d2958bd08a049b61941f078e51809c7e63bc3354 but the current belief is that the breakage is intentional and the bug is in the package.

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Thanks Ryan, I've subscribed to that Trac ticket.

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@snoyberg Thanks you for tagging a new release!

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