5:  #include <petscviewer.h>
  6: #include <SAWs.h>
  7: PETSC_EXTERN PetscErrorCode PetscViewerSAWsOpen(MPI_Comm,PetscViewer*);
  8: PETSC_EXTERN PetscViewer    PETSC_VIEWER_SAWS_(MPI_Comm);
  9: PETSC_EXTERN PetscErrorCode PETSC_VIEWER_SAWS_Destroy(MPI_Comm);
 10: #define PETSC_VIEWER_SAWS_WORLD PETSC_VIEWER_SAWS_(PETSC_COMM_WORLD)
 11: #define PETSC_VIEWER_SAWS_SELF  PETSC_VIEWER_SAWS_(PETSC_COMM_SELF)

 13: #define PetscStackCallSAWs(func,args) do {PetscErrorCode _ierr; \
 14:     PetscStackPush(#func);_func args;PetscStackPop; if (_ierr) {SETERRQ2(PETSC_COMM_SELF,PETSC_ERR_LIB,"Error in %s() %d",#func,_ierr);} \
 15: } while (0)

 17: #endif