Sorry, never mind my previous email. Lucas Nussbaum wrote:
We would like to switch to using mpich2 on the arches where openmpi is not supported, but some packages fail to build from source when using mpich2. It seems that for some of them, it is caused by build systems expecting to find mpi.h in /usr/lib/mpich2/include/ (as it is the case for other MPI implementations), while it is shipped in /usr/include/mpich2/.
By default, mpi.h should installed in $prefix/include, which seems to be what you need (prefix = /usr/lib/mpich2). So, unless you give an --includedir option to configure, this should work the way you expect it to. Maybe I'm not understanding the problem correctly here?
-- Pavan -- Pavan Balaji http://www.mcs.anl.gov/~balaji