[Haskell-cafe] Error trying to build haskell-dbus on FreeBSD

[Gleb Popov]

On Sat, Feb 1, 2020 at 5:31 AM Simon Jakobi via Haskell-Cafe <
haskell-cafe at haskell.org> wrote:

> Maybe. Though it seems to me that the pre-processor isn't missing, but
> it's doing the wrong thing…
>
> I'd suggest to open an issue at
> https://gitlab.haskell.org/ghc/ghc/issues – there should be people who
> can tell more exactly what's going wrong here.
>

FreeBSD uses Clang as C/C++ compiler. While its preprocessor should be 100%
compatible with GCC's one, it might explain why the problem appears.


> Am Sa., 1. Feb. 2020 um 02:16 Uhr schrieb Brandon Martin
> <brandon at codedmart.com>:
> >
> > Hmm... maybe I am missing a package in FreeBSD then? Is that the
> possible suggestion?
> >
> > --
> > Brandon Martin
> >
> > On Fri, Jan 31, 2020, at 5:12 PM, Simon Jakobi wrote:
> > > I think the error suggests that the C pre-processor doesn't work as
> > > expected. Look at the source around the error locations:
> > >
> > >
> https://github.com/rblaze/haskell-dbus/blob/43b1382ce93f08272fd6fda253d977f604214b2e/lib/DBus/Internal/Types.hs#L452-L481
> > >
> > > "HsType" is a variable name used in the CPP definition.
> > >
> > > Am Sa., 1. Feb. 2020 um 01:58 Uhr schrieb Brandon Martin
> > > <brandon at codedmart.com>:
> > > >
> > > > Yes I am. I put allow newer in both because stack complained about
> dependencies, and suggested it. I just put it in as a quick test to see if
> I could build it. Cabal didn't complain about dependencies, but got the
> same error.
> > > >
> > > > --
> > > > Brandon Martin
> > > >
> > > > On Fri, Jan 31, 2020, at 4:55 PM, Simon Jakobi wrote:
> > > > > Are you using the same dependency set (including GHC version) that
> you
> > > > > used on Linux too?
> > > > >
> > > > > Why did you enable allow-newer?
> > > > >
> > > > > Am Sa., 1. Feb. 2020 um 01:30 Uhr schrieb Brandon Martin
> > > > > <brandon at codedmart.com>:
> > > > > >
> > > > > > I am trying to build haskell-dbus on FreeBSD 12.1. I have tried
> with stack 2.1.3.1, and with cabal 2.4.0.0. I am seeing this error:
> > > > > >
> > > > > > Not in scope: type constructor or class ‘HsType’
> > > > > >
> > > > > > Full error:
> https://gist.github.com/codedmart/2b04438566ed8e985d909db7d426649c
> > > > > >
> > > > > > HsType is part of ghc unless I am missing something. I am new to
> using FreeBSD as I usually use Linux. This package builds fine for me on
> Linux.
> > > > > >
> > > > > > Thanks
> > > > > >
> > > > > > --
> > > > > > Brandon Martin
> > > > > >
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> > >
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