Re: [PATCH] Dynamic Linking fixes for NetBSD/amd64

[Bill Allombert <Bill.Allombert@math.u-bordeaux1.fr>]

On Sat, Sep 05, 2009 at 04:54:24AM +0200, Lorenz Minder wrote:
> Hi Bill,
> 
> BA:
> > On Thu, Sep 03, 2009 at 08:16:17AM +0200, Lorenz Minder wrote:
> > > Hi,
> > > 
> > > I need the following patches to build and run PARI on NetBSD/amd64 with
> > > dynamic libraries.  The first one sets the -fPIC flag on compile, the
> > 
> > Hello Lorenz,
> > Your first part of your patch looks wrong somehow, as if you were working
> > around some breakage of Configure. What does config/arch-osname report on
> > this
> > machine ?  For example, -fPIC should be already set if arch-osname report
> > this
> > is a 64bit x86_64 machine.
> 
> I think you're right.  The problem is that on NetBSD that architecture is
> reported as "amd64", not "x86_64".  I have attached a modified patch.

Actually the fix is to change arch-osname to report x86_64-netbsd.
Please try SVN revision at least 11897.

> > > second patch makes it possible to specify additional DLLDFLAGS on the
> > > command line to ./Configure.  This is useful because NetBSD's packages
> > > are by default stored in /usr/pkg, and the dynamic linker does not know
> > > about that location; so you want to supply an -rpath option to link
> > > against GMP or readline (unless you compile those by hand as well).

I also committed this part of the patch, though I am not sure it is 
necessary for your purpose: when you do 'make install', the Makefile
automatically add a rpath to gp for libpari.so, thought of course it might
be different from the path for readline and gmp.

> Another minor problem on NetBSD is that some times reported by 'make
> bench' are negative, see the attached bench_out file.

Yes this is strange, but we are measuring very small time now.
(A long time ago make bench could run for more than 15 minutes).
Have a look at the file src/test/dotest if you want.

Cheers,
Bill.