[petsc-dev] petsc/master: unable to link in C++ with last night PETSC_WITH_EXTERNAL_LIB variable changes

[Jed Brown]

Matthew Knepley <knepley at gmail.com> writes:

> If we were in charge of all dependencies, that would be true. However,
> packages can dump in things that need to link with. if we could
> require that all dependencies be specified through our system, then we
> could topologically sort and put out all the link libs. This is
> exactly what we do for configure tests already.

What's the problem with doing that now?  A node in the graph can
correspond to more than one -l flag.