I have made some changes so that when using the --prefix option there is no need to set PETSC_DIR or PETSC_ARCH.
./configure --prefix=... other options make make install Barry On Nov 27, 2009, at 5:47 PM, Satish Balay wrote: > On Fri, 27 Nov 2009, Barry Smith wrote: > > >> How does the gnu/autoconf world handle this. If you have two gnu/ >> autoconf >> installed packages how can you tell they are compatible? You should >> use the >> same type of mechanism they use. (what?, they don't have such a >> mechanism? >> Well then that is a limitation of the --prefix model and you have >> to live with >> that). > > The issue is not what the prefix model dictates. The issue is: do > slepc/petsc4py support both modes of install similar to PETSc. If not > why does PETSc need PETSC_ARCH for a prefix install? [if we are so > pure with supporting gnu/autoconf model?]. > > Satish >