Ethan Mallove wrote:
On Wed, Nov/19/2008 10:05:55AM, George Bosilca wrote:
We're still using STL ? I was pretty much sure that we removed this
dependency a while ago ?
Open MPI is now set up to use either of Solaris's two versions of STL. The
problem is that if libtool links in libCrun/libCstd, then bad things happen if
the user code contains code for the other STL version. (Not sure if I got that
100% right.) Dan overhauled Open MPI's handling of STL a while ago (r17448,
r17418, r17409, ...).
-Ethan
I think what Ethan is trying to say is that even though OMPI does not
require libCrun/libCstd libtool insists on adding one of them. If I
recall this thread correctly I think Ralf suggested we try a later
version of autotools to see if this still exists.
--td
george.
On Nov 19, 2008, at 09:11 , Ethan Mallove wrote:
----------------------------------------------------------------------------
WHAT: Add patch-libtool-for-sun-studio.pl script
----------------------------------------------------------------------------
WHY:
There are a couple issues with SunStudio and Libtool:
1. The SunStudio libCrun/libCstd C++ libs get linked into Open MPI by
libtool, which can lead to STL incompatibilities on Solaris
2. Libtool uses the wrong linker flags for C++ and Fortran (on Linux
Sun
Studio)
Benefits of the fix:
1. Anyone can easily build Open MPI using SunStudio
2. Nightly MTT Linux/SunStudio runs will pass
3. We can remove (most) of the Open MPI SunStudio building FAQ:
http://www.open-mpi.org/faq/?category=building#build-sun-compilers
----------------------------------------------------------------------------
WHERE: See attached patch; config/patch-libtool-for-sun-studio.pl and
configure.ac
----------------------------------------------------------------------------
WHEN: Soon
----------------------------------------------------------------------------
TIMEOUT: Later
----------------------------------------------------------------------------
One concern is that there's no precedent in Open MPI for patching libtool
*after* configure (we only patch libtool beforehand in autogen.sh). The
problem is that this particular libtool "patch" should only be used in the
case of Sun Studio which is not known until configure-time, and there does
not seem to be a generic patch that we could apply before configure.
-Ethan
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