vchoi_fork

[svn-r7041] Purpose:
Improvement

Description:
RUNPARALLEL is setup with default value when --enable-parallel but only if
CC is not set.

Solution:
set RUNPARALLEL to default value of using poe when --enable-parallel
or when an MPI compiler (e.g. mpcc_r) is used.

Platforms tested:
Copper for both 32 and 64 bit, serial and parallel.
(32bit parallel had a hang problem in configure which is a different but
known problem.)
Note that one still need to setenv AR "ar -X64" for 64bit configure.

Misc. update: