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Gabriella439 / turtle

Shell programming, Haskell style

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turtle-1.5.15 no longer compiles with ghc-8.2.2 or older

peti opened this issue · comments

commented

I'm getting errors like the following:

src/Turtle/Bytes.hs:790:32: error: 
    • Variable not in scope: (<>) :: a -> p -> t1 
    • Perhaps you meant one of these: 
        ‘<$>’ (imported from Prelude), ‘*>’ (imported from Prelude), 
        ‘<$’ (imported from Prelude) 
    | 
790 |             let bytes = prefix <> suffix 
    |                                ^^

See https://travis-ci.org/peti/distribution-opensuse/builds/589054086 for more details.

I suppose this is fine, but there should be a version constraint on base to prevent cabal from picking that version of turtle when compiling with ghc 8.2.2 or earlier.

commented

Actually, this is just a mistake since CI wasn't testing older GHC versions. I'll fix CI to test 8.2.2 and fix this code to not depend on an implicit <> in scope

commented

I fixed this in master and I also added a revision to fix the bounds on base for turtle-1.5.15