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Here is a patch to provide this for PETSc version 3.8.x </div>
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<br>
Apply with<br>
<br>
patch -p1 < petscoptionsallused.patch<br>
<br>
make gnumake<br>
<br>
It is also in the maint and master git branches of PETSc and will be in the next patch release.<br>
<br>
Barry<br>
<br>
<br>
> On Dec 27, 2017, at 3:37 AM, Praveen C <cpraveen@gmail.com> wrote:<br>
> <br>
> Hello<br>
> <br>
> I want to use this<br>
> <br>
> <a href="http://www.mcs.anl.gov/petsc/petsc-current/docs/manualpages/Sys/PetscOptionsAllUsed.html">
http://www.mcs.anl.gov/petsc/petsc-current/docs/manualpages/Sys/PetscOptionsAllUsed.html</a><br>
> <br>
> in a fortran code like this<br>
> <br>
> call PetscOptionsAllUsed(PETSC_NULL_OPTIONS, nunused, ierr); CHKERRQ(ierr)<br>
> if(nunused > 0)then<br>
> write(*,*)'Some command line options not used'<br>
> ierr = 1<br>
> endif<br>
> <br>
> but I cannot compile the code<br>
> <br>
> Undefined symbols for architecture x86_64:<br>
> "_petscoptionsallused_", referenced from:<br>
> _readparam_ in ccHwkiA6.o<br>
> ld: symbol(s) not found for architecture x86_64<br>
> collect2: error: ld returned 1 exit status<br>
> make[1]: *** [ug3] Error 1<br>
> make: *** [euler] Error 2<br>
> <br>
> Is this not implemented for fortran ?<br>
> <br>
> Is there any other way to detect some unused command line arguments ? If some argument is mis-spelled, it will be silently ignored, and I want to detect this case.<br>
> <br>
> Thanks<br>
> praveen<br>
<br>
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