Gilles, thank you for your feedback. Based on that I scrubbed my system from all gcc, g++, mac ports, etc. then upgraded to Xcode 7 from 6, installed brew, ran brew doctor until it was all happy, deleted all broken symlinks, and started from scratch. It was now using the apple installed gcc from Xcode, which seems to be v6. And e voila, everything worked. My suspicion now is a bad cross over installation from Xcode 6 's gcc and my hand install gcc. I also updated the stackoverflow post.
Thanks again for pointing me in the right direction, it took a while to clean the system, but now I'm happily running OpenMPI (and mpi4py) on my Mac! Cheers, Peter -------------------- Senior Career Coach, Harvard Business School (Sent from mobile device, please accept my apologies for typos) On Thu, Dec 24, 2015 at 4:12 PM -0800, "Gilles Gouaillardet" <gil...@rist.or.jp<mailto:gil...@rist.or.jp>> wrote: Peter, FWIW, i can compile your test program under OS X Yosemite and with gcc 5.3 from brew can you also post your configure output and your config.log ? Cheers, Gilles On 12/25/2015 6:35 AM, Platzer, Peter wrote: I’ve posted the details here on StackOverflow as well, including how to reproduce. http://stackoverflow.com/questions/34457801/error-with-gcc-5-for-varargs-function-suffix-or-operands-invalid-for-movq Environment: Mac OS El Capitan OpenMPI 1.10 GCC 5.3 configure fails when checking for ISO C99 compatibility. I traced it down to gcc 5 not compiling variable argument functions. This problem does not exist when using gcc 4.9 Cheers, Peter ___________________ Peter Platzer (HBS) pplat...@hbs.edu<mailto:pplat...@hbs.edu> Skype: Peter53129 _______________________________________________ users mailing list us...@open-mpi.org<mailto:us...@open-mpi.org> Subscription: http://www.open-mpi.org/mailman/listinfo.cgi/users Link to this post: http://www.open-mpi.org/community/lists/users/2015/12/28204.php
