Something is strange. I'll suggeset rm -rf externalpackages arch-macosx-gnu-seq and then doing a fresh build. And then verifying the build with 'make test' If 'make test' works - and the application build is not working- I'd like to see the complete compile log thats producing this error. wrt libmpiuni.a - all the relavent stuff is added to libpetsc.a and a separate libmpiuni.a is not created. Satish On Tue, 22 Nov 2011, Mark F. Adams wrote:

I'm trying to build a non MPI code and get this error:

Undefined symbols: "_ompi_mpi_comm_self", referenced from: _ompi_mpi_comm_self$non_lazy_ptr in libamrelliptic2d.Darwin.g++-4.gfortran.DEBUG.OPT.PETSC.a(PetscLinearSolver.o) (maybe you meant: _ompi_mpi_comm_self$non_lazy_ptr)

In the past I have linked libmpiuni.a but that did not seem to get created. Did libmpiuni.a go away or did my make fail ...

Mark