> > Rename libgpr.(a|so) to libgnatprj because the grpc source owns them. > your reverse dependencies [...] don't find the now removed library files
This upload was an error. I am going to revert the changes and let libgpr3-dev conflict with libgprc-dev. The libgpr->libgnatprj renaming is implemented in experimental. All dependencies will be updated as part of the gcc-9 transition. Thanks for your explanations.