https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88139
kargl at gcc dot gnu.org changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |kargl at gcc dot gnu.org --- Comment #4 from kargl at gcc dot gnu.org --- Record F2018 constraint. C1554 If proc-language-binding-spec is specified for a procedure, each of its dummy arguments shall be an interoperable procedure (18.3.7) or a variable that is interoperable (18.3.5, 18.3.6), assumed-shape, assumed-rank, assumed-type, of type CHARACTER with assumed length, or that has the ALLOCATABLE or POINTER attribute. I had a patch for this, but lost it when committing my last 10 patches.