usable_prefix     192 ompi/errhandler/errhandler_predefined.c     const char* usable_prefix = unknown_prefix;
usable_prefix     222 ompi/errhandler/errhandler_predefined.c     usable_prefix  = (NULL == prefix)  ? unknown_prefix : prefix;
usable_prefix     229 ompi/errhandler/errhandler_predefined.c                        usable_prefix,
usable_prefix     232 ompi/errhandler/errhandler_predefined.c                        usable_prefix,
usable_prefix     235 ompi/errhandler/errhandler_predefined.c                        usable_prefix,
usable_prefix     238 ompi/errhandler/errhandler_predefined.c                        usable_prefix,
usable_prefix     240 ompi/errhandler/errhandler_predefined.c                        usable_prefix,
usable_prefix     242 ompi/errhandler/errhandler_predefined.c                        usable_prefix);
usable_prefix     247 ompi/errhandler/errhandler_predefined.c                        usable_prefix,
usable_prefix     250 ompi/errhandler/errhandler_predefined.c                        usable_prefix,
usable_prefix     253 ompi/errhandler/errhandler_predefined.c                        usable_prefix,
usable_prefix     255 ompi/errhandler/errhandler_predefined.c                        usable_prefix,
usable_prefix     257 ompi/errhandler/errhandler_predefined.c                        usable_prefix,
usable_prefix     259 ompi/errhandler/errhandler_predefined.c                        usable_prefix);