Re: Build C++ shared libs on HP-UX with aCC, not ld

[Gary V . Vaughan]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Hi Bob, Albert,

On 6 Sep 2004, at 01:33, Bob Friesenhahn wrote:
> On Mon, 6 Sep 2004, Gary V.Vaughan wrote:
> > > 2004-09-05  Albert Chin-A-Young  <address@hidden>
> > >         * m4/libtool.m4: Use the HP C++ compiler to build C++
> > >         shared libraries, not ld.
> >
> > Before I apply this patch, I wonder: Is now the time to move 
> > wholesale for using the C++ compiler for linking C++ libraries?  In 
> > addition to giving (hopefully) better reliability, we should be able 
> > to drop all the code for trying to guess how the compiler will call 
> > the linker if it turns out to work well...
> >
> > Thoughts?
>
> That would depend on if we know how to instruct the C++ compiler to 
> build a shared library for all supported environments.  Is that the 
> case?

I doubt it.  But we can certainly get a good approximation by looking 
at how we link shared libs with the C compiler on that platform.

Perhaps a better plan is to show a warning for libtool alpha versions, 
and convert each platform separately in due course.  Say:

**** Warning: Libtool does not yet know whether it can safely link
**** $compiler shared libraries with $CC, attempting to link with $LD.

We can probably patch gcc and HP-UX's aCC right away, and then tackle 
the others as convenient.  Maybe we should even leave the warning on in 
2.0 to solicit platform patches from libtool's C++ users?

Cheers,
        Gary.
- --
Gary V. Vaughan      ())_.  address@hidden,gnu.org}
Research Scientist   ( '/   http://tkd.kicks-ass.net
GNU Hacker           / )=   http://www.gnu.org/software/libtool
Technical Author   `(_~)_   http://sources.redhat.com/autobook

-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.2.2 (Darwin)

iD8DBQFBO7fRFRMICSmD1gYRAhv0AJ0ZibAxt0LWL6wp1ZiT1kwUy/c5UQCfYTwK
V+wstExtTr6tHuq9GlEEwoI=
=7c9Y
-----END PGP SIGNATURE-----