[petsc-users] Strange compiling error in DMPlexDistribute after updating PETSc to V3.11.0

[Danyang Su]

Hi All,

I got a strange error in calling DMPlexDistribute after updating PETSc 
to V3.11.0. There sounds no change in the interface of DMPlexDistribute 
as documented in

https://www.mcs.anl.gov/petsc/petsc-3.10/docs/manualpages/DMPLEX/DMPlexDistribute.html#DMPlexDistribute

https://www.mcs.anl.gov/petsc/petsc-3.11/docs/manualpages/DMPLEX/DMPlexDistribute.html#DMPlexDistribute

The code section is shown below.

       !c distribute mesh over processes
       call 
DMPlexDistribute(dm,stencil_width,PETSC_NULL_SF,distributed_dm,ierr)

When I use PETSc V3.10 and earlier versions, it works fine. After 
updating to latest PETSc V3.11.0, I got the following error during compiling

       call 
DMPlexDistribute(dm,stencil_width,PETSC_NULL_SF,distributed_dm,ierr)
                                                                      1
Error: Non-variable expression in variable definition context (actual 
argument to INTENT = OUT/INOUT) at (1)
/home/dsu/Soft/PETSc/petsc-3.11.0/linux-gnu-opt/lib/petsc/conf/petscrules:31: 
recipe for target '../../solver/solver_ddmethod.o' failed

The fortran example 
/home/dsu/Soft/PETSc/petsc-3.11.0/src/dm/label/examples/tutorials/ex1f90.F90 
which also uses DMPlexDistribute can be compiled without problem. Is 
there any updates in the compiler flags I need to change?

Thanks,

Danyang