c4c536511f
whether they are prefixed with a double underscore or not. __DARWIN_UNIX03 is defined on Tiger when compiling PPC 64 code, so we can't use that. Refs trac:575 This commit was SVN r12418. The following Trac tickets were found above: Ticket 575 --> https://svn.open-mpi.org/trac/ompi/ticket/575