more comments about new build system

[Satish Balay]

On Wed, 13 Jun 2007, Satish Balay wrote:

> I think to support multiple PETSc installs in /usr [via .deb or .rpm],
> the packagers have to use --prefix=/usr/lib/petsc-debug
> --prefix=/usr/lib/petsc-opt [or more appropriate names per the
> packagins standards they use], and then create links from /usr/include
> & /usr/lib to the default versions.

Another idea is to always insist packages do the above [and never use
prefix=/usr], so we can keep 'conf' or 'petscconf' as it is.

Satish