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SMP-related build failure on GHC 8.4-alpha1 #121

deepfire opened this Issue Jan 13, 2018 · 0 comments


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deepfire commented Jan 13, 2018

Build fails on 8.4.1-alpha1:

[3 of 7] Compiling Text.XML.Stream.Render ( Text/XML/Stream/Render.hs, dist/build/Text/XML/Stream/Render.o )

Text/XML/Stream/Render.hs:405:10: error:
    • No instance for (Semigroup Attributes)
        arising from the superclasses of an instance declaration
    • In the instance declaration for ‘Monoid Attributes’
405 | instance Monoid Attributes where
    |          ^^^^^^^^^^^^^^^^^
builder for ‘/nix/store/4q1nmhiclmk8h1j0w71ci4j0fzysliyr-xml-conduit-’ failed with exit code 1
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