Have you tried llvm with clang?
From: email@example.com [mailto:firstname.lastname@example.org] On Behalf Of Paul Hargrove
Sent: Thursday, January 17, 2013 4:58 PM
To: Open MPI Developers
Subject: Re: [OMPI devel] 1.6.4rc1 has been posted
On Thu, Jan 17, 2013 at 2:26 PM, Paul Hargrove <email@example.com> wrote:
The BAD news is a new failure (SEGV in orted at exit) on OpenBSD-5.2/amd64, which I will report in a separate email once I've completed some triage.
You can disregard the "BAD news" above.
Everything was fine with gcc, but fails with llvm-gcc.
Looking deeper (details upon request) the SEGV appears to be caused by a bug in llvm-gcc.
Paul H. Hargrove PHHargrove@lbl.gov
Future Technologies Group
Computer and Data Sciences Department Tel: +1-510-495-2352
Lawrence Berkeley National Laboratory Fax: +1-510-486-6900