Randy, Thanks for trying this. I have started a merge request https://urldefense.us/v3/__https://gitlab.com/petsc/petsc/-/merge_requests/8501__;!!G_uCfscf7eWS!bceR7fahh0spEc8XRbLMfFNdOqIhH-v-WLSyDf6tadn0DTdqAVEV7w00DMInOOXFlqEF6dE7-UGW-sfYmO3DUMU$ with this requirement on all Fortran source code and found many missing interfaces. I have fixed some but there are still some outstanding that need to be resolved in the MR. Including some you pointed out below.
Barry > On Jun 23, 2025, at 1:37 PM, Randall Mackie <rlmackie...@gmail.com> wrote: > > After discovery of the implicit none (type, external) statement for disabling > implicit procedures (thanks to Barry for the suggestion), I used that in my > code to good effect. > > However, it also showed that were some routines I call that did not have > explicit Fortran interfaces, and maybe they exist but I just didn’t include > the right modules. > > Here are the ones I’m missing: > > MatShellSetOperation > PetscOptionGetString > PetscViewerASCIIPrintF > VecSetValue > KSPMonitorSet > > Do the Fortran interfaces exist for these? If not can they be added? > > > Thanks, Randy >