[petsc-dev] switch petsc-dev to use --with-shared-libraries by default?

Matthew Knepley knepley at gmail.com
Fri Jun 1 19:11:53 CDT 2012

On Fri, Jun 1, 2012 at 2:18 PM, Aron Ahmadia <aron.ahmadia at kaust.edu.sa>wrote:

>  I recall you were fighting with this recently. Did you figure out what was
> > wrong?
> The semantics for compiling/linking on BG/P with XL compilers is not
> that hard.  All objects need to be compiled with the -qpic flag.
> Shared libraries are built with the -qmkshrobj -qnostaticlink flags.
> Final executables must be linked without the -qmkshrobj flag but with
> the -qnostaticlink flag.  xlc also insists that all libraries linked

Here is the problem for BuildSystem right now. We just need to fix it to put
-qnostaticlink flag in LDFLAGS. That should put it in the shared object link
along with -qmkshrobj fro sharedLibraryFlags, and in the executable.


> are .so, so trying to link in static library archives will confuse it
> as well.

What most experimenters take for granted before they begin their
experiments is infinitely more interesting than any results to which their
experiments lead.
-- Norbert Wiener
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