I usually build OpenMPI using these flags
--enable-mpi-cxx --enable-mpi-cxx-seek --enable-cxx-exceptions
but get this error for the 4.1.0 source
checking for compiler exception flags... -fexceptions
checking to see if C compiler likes the exception flags... no
configure: WARNING: C++ exception flags are different between the C
and C++ compilers; this configure script cannot currently handle
this scenario. Either disable C++ exception support or send mail to
the Open MPI users list.
configure: error: *** Cannot continue
with both the GCC 10.2.0 & PGI 21.1 compilers.
The problem goes away by removing the --enable-cxx-exceptions flag, but
(a) is there a solution that doesn't involve removing capabilities, and
(b) is this a bug that needs to be fixed in the source?
