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Re: -Bstatic and -Bdynamic flags when checking fortran compiler librari

From: Christopher Hulbert
Subject: Re: -Bstatic and -Bdynamic flags when checking fortran compiler libraries
Date: Fri, 23 Jan 2009 11:26:00 -0500

On Fri, Jan 23, 2009 at 1:47 AM, Ralf Wildenhues <address@hidden> wrote:
> * Eric Blake wrote on Fri, Jan 23, 2009 at 05:33:28AM CET:
>> According to Christopher Hulbert on 1/22/2009 8:56 AM:
>> > I have a case where I want to statically link the compiler libraries.
>> > In this case, the PGI compiler provides the -Bstatic_pgi flag which
>> > adds '-Bstatic' in front of its libraries. This information is lost,
>> > and the compiler does not check for its own libraries on the compile
>> > line to add the flag in front of. The attached patch adds cases for
>> > the '-Bstatic' and '-Bdynamic' flags in the _AC_FC_LIBRARY_LDFLAGS
>> > macro. Is there any chance of getting this in?
>> I'm not familiar with Fortran, so I'm hoping someone else will chime in.
> I intend to try it out when I can.  The Fortran support in Autoconf and
> Libtool is in dire need of more test exposure, so that we have a chance
> to measure the impact of changes like this one without waiting for bug
> reports after the next release to trickle in.
> For example, even with this patch, libtool-generated shared libraries
> will likely not get the right treatment here (whatever that is; it
> depends upon the libraries we're looking at here).

That is true that libtool does not handle these flags. I would like to
patch libtool, but I'm afraid that may be a lot more work and not sure
I can figure out the "proper" way to do it. It does however work for
programs that do not use libtool.

Being a libtool guru, is such a patch even possible? If so, what's the
estimate on how much work and how invasive it would be?


> Thanks,
> Ralf

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