When I try to install hlint I get errors surrounding old-time-

谁说我不能喝 提交于 2019-12-04 04:03:48

The best way to know where it fails is to go through each failed package and install them one after the other.

I had issue with haskell-src-exts in which showed up in hlint and when I tried to cabal install haskell-src-exts it was happythat wasn't properly installed.

There are lots of variables that could be at play to explain what's going on, including cabal-install and ghc versions. It would be useful if you included the cabal --version and ghc --version output in your question.

That said: I'd recommend trying out the installation using Stack. Once you have Stack installed (on POSIX systems, usually sufficient to run curl -sSL https://get.haskellstack.org/ | sh), you can install with stack --resolver lts-6.16 --install-ghc --no-system-ghc install hlint.

Are you on Windows or Linux? What does ghc --version say? What about ghc-pkg old-time? I recommend trying to run cabal install old-time directly, which should reproduce the error directly.

Solution by OP.

Modify your cabal config file (you can verify the location by running "cabal user-config init") to contain the following lines:

extra-prog-path: C:\Program Files\Haskell Platform\8.0.1\msys\usr\bin
extra-lib-dirs: C:\Program Files\Haskell Platform\8.0.1\mingw\lib
extra-include-dirs: C:\Program Files\Haskell Platform\8.0.1\mingw\include