Re: Mac 10.15 compiling using ghc

[John MacFarlane <jgm-TVLZxgkOlNX2fBVCVOL8/A@public.gmane.org>]

The issue is that ghc doesn't know where to find the dependent
libraries (in this case pandoc-types).  On ubuntu you probably
had this installed in a central location.

Generally, to build Haskell code with dependencies you need to
use stack or cabal.

But see here:
https://stackoverflow.com/questions/65539773/compiling-a-haskell-script-with-external-dependencies-without-cabal

It looks like you can do:

cabal install --lib pandoc-types
ghc --make striplatex.hs

Try that.

Uwe Brauer <oub-YB6e1s5WF/He5aOfsHch1g@public.gmane.org> writes:

> Hi
>
> Under linux (Ubuntu 16.04)
>
> I run successfully 
>
>  ghc --make striplatex.hs 
> where striplatex is just
>
> ,----
> | import Text.Pandoc.JSON
> |     
> | main = toJSONFilter stripmath
> |     where stripmath (Math _ _) = Str "FORMULA"
> |           stripmath x = x
> `----
>
> That nicely replaces all my mathematical formula, just by the word
> FORMULA
>
> I tried the same under Mac 10.15. 
>
> For that I installed pandoc https://github.com/jgm/pandoc/releases/tag/2.13
>
> I install ghc using fink (that is one of the three linux like
> environments (the others are macports and homebrew).
>
> However when I run 
>
>  ghc --make striplatex.hs 
>
> I obtain 
>
> Could not find module Text.Pandoc.JSON
>
> I admit I just started using a Mac and don't know many details.
>
> Any help would be appreciated 
>
> Thanks
>
> Uwe Brauer 
>
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