changes to PETSc-dev bmake system and library locations

[Barry Smith]

On Mon, 11 Jun 2007, Satish Balay wrote:
> 
> However I think the requirement of 'PETSC_DIR' might still be a minor
> hurdle for this mode. [the alternative would be providing compiler
> wrappers but thats a different discussion]
> 
> Satish
> 
> 

   This will be fixed with my next push.

   Also the /${PETSC_ARCH}/ --> // issue will be fixed.

   Barry