[Haskell-cafe] library version problem

[Galchin, Vasili]

Hello,

     Is there better documentation for ghc-pkg than just "help"??

Vasili

On Thu, Apr 10, 2008 at 9:36 PM, Galchin, Vasili <vigalchin at gmail.com>
wrote:

> Hi Philip,
>
>     Before I got your email, I deregistered unix-2.3.0.0 which made my
> unix-2.2.0.0 namespace changes visible. However, deregistering seems to made
> other things worse, e.g. runhaskell Setup.hs configure gives an error
> message "unknown parameter package: unix-2.3.0.0". Sigh .. how do I get back
> to where i was in order to do a "hide"?
>
> Kind regards, Vasili
>
>
> On Thu, Apr 10, 2008 at 8:22 PM, Philip Weaver <philip.weaver at gmail.com>
> wrote:
>
> > 2008/4/10 Galchin, Vasili <vigalchin at gmail.com>:
> > > Hello,
> > >
> > >         I doing work using Linux. The wrong version (for me) of the
> > unix
> > > package seems to be visible. I see possibilities to use ghc-pkg to
> >  suppress
> > > the unix package that I don't want(2.3.0.0) but that seems dangerious.
> > > Details are below .  What should I do?
> >
> > If you don't want to use it, then it's safe to hide it:
> >
> >   ghc-pkg hide unix-2.3.0.0
> >
> > You can always unhide it later.
> >
> > You can also tell ghc to use a specific version of a package:
> >
> >   ghc -package unix-2.2.0.0
> >
> > Of course, you'll need to make sure unix-2.2.0.0 is registered with
> > ghc-pkg.
> >
> > >
> > > Regards, vasili
> > >
> > >
> > >
> > > When I do:
> > >
> > > > ghci
> > >       :m System.Posix
> > >
> > > I am getting the wrong version of the Unix package. I know this to be
> > true
> > > because I did
> > > ghc-pkg latest unix
> > >
> > > and got unix-2.3.0.0
> > >
> > > I want unix.2.2.0.0 because this version has changes that I made to
> > the unix
> > > package.  libHSunix-2.2.0.0.a is installed under
> > > /usr/local/lib/unix-2.2.0.0/ghc-6.8.2 I did a "nm -a
> > libHSunix-2.2.0.0.a"
> > > and found symbols that I added.
> > >
> > > _______________________________________________
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> > >
> > >
> >
>
>
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