Not sure I understand. If I say 'mpi depends on mpe' - then the link line is: -lhypre -lmpi -lmpe But thats incorrect usage - and not what I want.. The correct usage is: -lhypre -lmpe -lmpi The issue comes up with -llmpe - which traps MPI_xx functions - and does some logging - and then calls MPI_xx functions from -lmpi. i.e usage is: -lhypre -llmpe -lmpe -lmpi Satish On Tue, 5 Apr 2011, Matthew Knepley wrote:

Yes, Lisandro is correct.

Matt

On Tue, Apr 5, 2011 at 11:05 AM, Lisandro Dalcin <[email protected]> wrote:

...

On 5 April 2011 12:54, Satish Balay <[email protected]> wrote:

...

Matt,

Is it possible to specify package dependencies such that the following

happens:

...

[all mpipackages like -lhypre] [-lmpe] -lmpi

Currently I have: mpe: depends on mpi hypre: depends on mpi

And configure can do: -lmpe -lhypre -lmpi

But I want to say: mpe: depends on mpi, but before all other mpi packages.

...

From a library dependency POV, it is the other way around: MPI depends on MPE, but the dependency is optional.

-- Lisandro Dalcin --------------- CIMEC (INTEC/CONICET-UNL) Predio CONICET-Santa Fe Colectora RN 168 Km 472, Paraje El Pozo 3000 Santa Fe, Argentina Tel: +54-342-4511594 (ext 1011) Tel/Fax: +54-342-4511169