[Libmesh-users] do different configurations require multiple copies of the source?

[David K. <dkn...@se...>]

I'd like to have libMesh (on the git head) configured with both real 
numbers and complex numbers. I currently do this by having two copies of 
the source: libmesh-src-real and libmesh-src-complex and configure each 
one appropriately and install into libmesh-real and libmesh-complex, 
respectively.

I just wanted to check that this is a reasonable approach? I thought 
it'd be nice if I could have just one copy of the source, but then it 
seems I need to reconfigure every time I make a change to the source and 
re-build (since the configuration files get over-written).

Thanks,
David