[gentoo-alpha] Re: [gentoo-ia64] non-PIC code in shared libraries

[gentoo-alpha] Re: [gentoo-ia64] non-PIC code in shared libraries

[Aron Griffis]

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Jon Portnoy wrote:	[Wed Dec 10 2003, 04:08:51PM EST]
> On Wed, Dec 10, 2003 at 03:59:46PM -0500, Aron Griffis wrote:
> > Jon Portnoy wrote:	[Wed Dec 10 2003, 12:47:15PM EST]
> > > AMD64 has the same issue. A number of applications have been patched to 
> > > build properly (using -fPIC for libs). For example, look at the ncurses 
> > > ebuild:
> > > 
> > >         # Shared objects are compiled properly with -fPIC, but
> > >         # standard libs also require this.
> > >         if [ "${ARCH}" = "amd64" ]
> > >         then
> > >                         append-flags -fPIC
> > >         fi
> > 
> > Clearly we need a generic check for 64-bit.  There are ebuilds
> > throughout the tree that add -fPIC for some mix of amd64, alpha or ia64.
> > Do we have something already that would suffice?
> > 
> 
> A good idea, but I don't think we have anything currently.
> 
> > Probably the best would be to abstract this into portage so that the
> > implementation could change as needed.  Ideas?
> 
> Ideally we could come up with a good way to check in an eclass and just 
> call that eclass in ebuilds that need it.

That would probably be best (at least for the near-term) since it would
work instantly on all versions of portage out there.

I'll write up the eclass and commit it.

-- 
Aron Griffis
Gentoo Linux Developer (alpha / ia64 / ruby / vim)
Key fingerprint = E3B6 8734 C2D6 B5E5 AE76  FB3A 26B1 C5E3 2010 4EB0


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[gentoo-alpha] Re: [gentoo-ia64] non-PIC code in shared libraries

[Aron Griffis]

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Done.  I wrote 64-bit.eclass and demonstrated its use in
ncurses-5.3-r4.ebuild:

    inherit flag-o-matic 64-bit

    src_compile() {
        64-bit && append-flags -fPIC
        ...
    }

Aron

P.S. Jon, please forward to gentoo-amd64.  I can't post there because
I'm not subscribed.

-- 
Aron Griffis
Gentoo Linux Developer (alpha / ia64 / ruby / vim)
Key fingerprint = E3B6 8734 C2D6 B5E5 AE76  FB3A 26B1 C5E3 2010 4EB0


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