Brock,
> We have our kitchensink build of petsc we provide to our users, I can
> configure deal against it, but when building the examples linking fails
> because the $PETSC/conf/variables is not getting read correctly. There
> isn't an error about it, just the linking for external libraries like
> HDF5/parmetis etc that petsc requires are not being included so I get
> tones of 'undefined reference to'
>
> I have pasted my (nasty) configure below. Any idea what would cause this
> to fail? Its strange I see that it is included in
> $DEAL/common/Make.global_options
As you say, the file gets sources in common/Make.global_options, but we may
not be using the information exported there properly. In particular, if you
take a look at the linker line in any of the examples' Makefiles (taking out
the @-signs at the beginnings of commands to actually see the command when
running make), you'll see that we use our own set of LIBS and LDFLAGS.
Presumably, if you build PETSc with additional libraries we did not
anticipate, it may be necessary to add them to the linker line.
That said, because the PETSc libs are such a mess, deal.II re-links the PETSc
libs into a single library lib/libpetscall.{a,so}. You can see the code for
this in lib/Makefile. As you can see, before PETSc 3.1, PETSc came with a
whole bunch of libraries; if you enable additional packages, you may have to
extend the list around line 65. What's your PETSc version?
Best & thanks for already poking around all the right places to get this to
work!
W.
-------------------------------------------------------------------------
Wolfgang Bangerth email: [email protected]
www: http://www.math.tamu.edu/~bangerth/
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