GHC HEAD (Quickest) segfaults during compilation of optparse-applicative

[Csaba Hruska]

Hello,

GHC HEAD (9668781a36941e7552fcec38f6d4e1d5ec3ef6d1) compiled with the
Quickest flavour segfaults when compiles optparse-applicative-0.15.1.0.
But it compiles fine with the Quick or the default flavours.
[image: image.png]
Everything compiles fine (with vanilla Quickest GHC HEAD) until the
Options.Applicative.Help.Core module where GHC segfaults. (as I understand
the error code)

Is this a known bug?
If not then I'll submit an issue.

Thanks,
Csaba
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