R_OK             1192 file.c             if (eaccess(StringValueCStr(fname), R_OK) < 0) return Qfalse;
R_OK             1209 file.c             if (access(StringValueCStr(fname), R_OK) < 0) return Qfalse;
R_OK             4485 file.c             return eaccess(path, R_OK) == 0;
R_OK               15 missing/file.h #ifndef R_OK