[petsc-dev] removing --with-64-bit-pointers

[Barry Smith]

   Satish,

    We discussed you removing the --with-64-bit-pointers options  
from ./configure and instead documenting that the user selects on a  
system by system basis by either selecting the appropriate compiler or  
the passing the appropriate compiler options. Is there any reason you  
shouldn't make this change?

    My understanding is that the current option is not properly  
supported and may be next to impossible to truly support automatically?

    I  expect the usual complaints from the peanut gallery so let's  
hear them.

     Barry