rcs_sym_remove
int rcs_sym_remove(RCSFILE *, const char *);
return (rcs_sym_remove(cf->file_rcs, tag_name));
if (rcs_sym_remove(pb->file, pb->symbol) < 0) {
int rcs_sym_remove(RCSFILE *, const char *);
if (rcs_sym_remove(file, symname) < 0) {