On Thu, 3 Mar 2011, Boyce Griffith wrote:

> Because I think it is in general hard to detect robustly whether you can 
> "safely" switch between PETSC_ARCH'es without doing a full recompilation, a 
> nice compromise might be to be able to associate different 
> PETSC_DIR/PETSC_ARCH values with different libMesh build modes.  At least, 
> this a feature that I would use.

In general this is starting to sound like the "buildroot" support I've
been quite impressed by in a few of my group's application codes:

"mkdir opt && cd opt && ../configure --with-opt-stuff && make && cd .."
"mkdir debug && cd debug && ../configure --with-debug-stuff && make"

But I think to really get that level of flexibility we'd want to go
whole-hog and finally move libMesh to automake, not try to reinvent it.
---
Roy

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