Hi Jakub,
Jakub Kądziołka <k...@kadziolka.net> writes:
> I am trying to set up Agda, and I have reduced it to a simpler problem:
>
> $ cat test.hs
> import Numeric.IEEE
>
> main = return ()
> $ genv --pure --ad-hoc ghc@8.6 ghc-ieee754 gcc-toolchain
> % ghc test.hs
> Linking test ...
> ld: cannot find -lHSieee754-0.8.0-IfCS1Dp7pQVIOQRslM6kD
> collect2: error: ld returned 1 exit status
> `gcc' failed in phase `Linker'. (Exit code: 1)
>
> How can I fix this error? Am I doing something wrong, or is this a
> packaging bug?
GHC needs a special flag to link shared libraries. We recently starting
building shared libraries for our Haskell packages. The static ones are
still being built, but they go to a separate output. I think you can
fix your problem in one of two ways:
1. Pass the “-dynamic” flag to GHC (and maybe “-fPIC”);
2. Use “ghc-ieee754:static”.
The first is preferred because the second could get really tricky if
there are nested dependencies.
The fact that the user experience is so wonky is a bit of packaging bug,
for sure. I’m not sure how to make it nicer just yet.
-- Tim
