X_OK              280 dln_find.c     	    if (eaccess(fbuf, X_OK) == 0) return fbuf;
X_OK             1280 file.c         	if (!(mode & X_OK))
X_OK             1687 file.c             if (eaccess(StringValueCStr(fname), X_OK) < 0) return Qfalse;
X_OK             1704 file.c             if (access(StringValueCStr(fname), X_OK) < 0) return Qfalse;