Re: multilib support

[Ralf Wildenhues]

Hi Simon, Bob,

Sorry for the delay.

* Bob Friesenhahn wrote on Sun, Mar 12, 2006 at 04:53:37PM CET:
> On Sat, 11 Mar 2006, Simon Stelling wrote:
> >
> >It seems like libtool has some problems on multilib-enabled systems.

Yes.

> >When libtool is given a -l argument is tries to find a matching libtool 
> >archive by searching through various paths:
> >
> >for searchdir in '$newlib_search_path' '$lib_search_path' 
> >'$sys_lib_search_path' '$shlib_search_path'
> 
> I observe the same problems for Solaris SPARC.  The problem is that 
> GCC outputs paths which are not decorated for the specified 
> architecture and libtool blindly uses them.

That is only half of the problem.  If it were the only problem, then we
could just prepend all the lib64 paths on GNU/Linux, and the sparcv9
ones on Solaris.  The other half is that libtool does not skip libraries
it finds there: deplibs_check_method is set to pass_all.

So the task is: find a good replacement for that which is both cheap and
accurate.  And feasible.

Cheers,
Ralf