[Haskell-beginners] Patch source, then pickup compile

[Benjamin Jones]

I ran into this same build problem myself the other day. I believe that
forcing pandoc to build with the https flag set is a workaround until the
next hackage release. You can add this on the command line with:

    $ cabal install pandoc -fhttps

or in the cabal.config file:

    constraints: pandoc +https

--
Benjamin Jones

On Fri, Sep 19, 2014 at 11:06 PM, James Toll <james at jtoll.com> wrote:

> On Sep 20, 2014, at 12:04 AM, James Toll <james at jtoll.com> wrote:
>
> > On Sep 19, 2014, at 11:05 PM, Brandon Allbery <allbery.b at gmail.com>
> wrote:
> >
> >> On Sat, Sep 20, 2014 at 12:01 AM, James Toll <james at jtoll.com> wrote:
> >> [james ~/src/haskell/sandboxes/hakyll/pandoc-1.13.1]$ cabal install -j
> >> Resolving dependencies...
> >> In order, the following will be installed:
> >>
> >> This sounds like it did not indeed install in the sandbox (compare the
> notice after "Resolving dependencies" in the hakyll install). Unfortunately
> I don't know what follows from here; it sounds like a cabal bug to me, but
> maybe being in the patched pandoc source directory keeps it from seeing the
> sandbox, in which case maybe there's an option to point to a specific
> sandbox for installs? (I still don't have a working Haskell install on my
> new machine, and am not sure at this point when I'll be able to get to it,
> sigh.)
> >
> >
> > Thank you for the help. I wonder if I need to set this up as a shared
> sandbox so that pandoc gets installed to the sandbox in the parent
> directory.  Kind of like the first example from the “Advanced usage”
> section of:
> >
> > http://coldwa.st/e/blog/2013-08-20-Cabal-sandbox.html
>
> Creating a shared sandbox ended up working.  I don’t know it that’s the
> proper way to do this kind of thing.  For reference, here is what I did to
> get Hakyll installed with the broken Pandoc dependency:
>
> $ mkdir hakyll
> $ cd hakyll
> $ cabal sandbox init --sandbox .
> $ cabal install -j hakyll
> [compilation fails at Pandoc]
> $ cabal get pandoc-1.13.1
> $ cd pandoc-1.13.1/
> $ cabal sandbox init --sandbox ../
> [make trivial source change]
> $ cabal install -j
> $ cd ..
> $ cabal install -j hakyll
>
> I’ve not tested the Hakyll installation yet to see if it works properly,
> but the installation succeeded.
>
> James
>
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