Descriptiob: fixes runtime error at Dyson:
 python could not open any file because set_inheritable() failed.
 FIOCLEX/FIONCLEX are defined at illumos but do not really work.
 Other functions already rely on FD_CLOEXEC, so use it for set_inheritable() too
Index: python3.4-3.4.1/Python/fileutils.c
===================================================================
--- python3.4-3.4.1.orig/Python/fileutils.c
+++ python3.4-3.4.1/Python/fileutils.c
@@ -622,10 +622,7 @@ set_inheritable(int fd, int inheritable,
 #ifdef MS_WINDOWS
     HANDLE handle;
     DWORD flags;
-#elif defined(HAVE_SYS_IOCTL_H) && defined(FIOCLEX) && defined(FIONCLEX)
-    int request;
-    int err;
-#elif defined(HAVE_FCNTL_H)
+#else
     int flags;
     int res;
 #endif
@@ -670,19 +667,6 @@ set_inheritable(int fd, int inheritable,
         return -1;
     }
     return 0;
-
-#elif defined(HAVE_SYS_IOCTL_H) && defined(FIOCLEX) && defined(FIONCLEX)
-    if (inheritable)
-        request = FIONCLEX;
-    else
-        request = FIOCLEX;
-    err = ioctl(fd, request, NULL);
-    if (err) {
-        if (raise)
-            PyErr_SetFromErrno(PyExc_OSError);
-        return -1;
-    }
-    return 0;
 
 #else
     flags = fcntl(fd, F_GETFD);