[Haskell-cafe] trouble installing greencard -- -fno-prune-tydecls flag ( was Re: trivial function application question )

[Marco Túlio Gontijo e Silva]

Em Dom, 2007-01-07 às 02:07 +0000, Ross Paterson escreveu:
> On Sun, Jan 07, 2007 at 12:44:46PM +1100, Donald Bruce Stewart wrote:
> > dmhouse:
> > > On 06/01/07, Chris Kuklewicz <haskell at list.mightyreason.com> wrote:
> > > >Running --configure notices that many things are not installed, but this 
> > > >is just noise from Cabal.
> > > 
> > > This is the second time I've seen someone get confused by these
> > > messages. I propose we add a 'Configuration successful, now type
> > > runhaskell Setup.hs build.' to the bottom of the configure output.
> > 
> > I agree. This issue is even mentioned here:
> > 
> >     www.serpentine.com/blog/2007/01/05/getting-started-with-installing-third-party-haskell-packages/
> > 
> > Those new to Cabal always seem to assume things are going badly when
> > "happy not found". We need to address the psychological aspect
> > of Cabal's config process :)
> 
> But it's not enough to just say "Ignore any errors above".  Some packages
> really do need happy (or some other tool) to build.  Cabal would need to
> crawl over the source files to see what preprocessors are really needed.
> (It does that in the build phase, but not configure.)  If haddock is
> absent, you can build and install, but not build documentation.

Maybe if in the Cabal file was specified what's needed for compiling the
package, this would not happen.

-- 
malebria
Marco Túlio Gontijo e Silva
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