The 2.0.0rc2 tarball fails to compile on Linux/x86-64 with the Sun/Oracle Studio compilers when using "-m32". I have reproduced with the 12.2 and 12.4 compiler releases (I have others, but only tested those 2).
The error appears to be the same one I previously reported multiple times. The latest report was in https://www.open-mpi.org/community/lists/devel/2015/07/17585.php FWIW: that posting includes a 2-line patch that fixes the problem for me. -Paul -- Paul H. Hargrove phhargr...@lbl.gov Computer Languages & Systems Software (CLaSS) Group Computer Science Department Tel: +1-510-495-2352 Lawrence Berkeley National Laboratory Fax: +1-510-486-6900