linux: Define __ASSUME_CLONE3 to 0 for alpha, ia64, nios2, sh, and sparc

Not all architectures added clone3 syscall.

Reviewed-by: Florian Weimer <fweimer@redhat.com>

sysdeps/unix/sysv/linux/nios2/kernel-features.h

@@ -0,0 +1,24 @@
+/* Set flags signalling availability of kernel features based on given
+   kernel version number.  NIOS2 version.
+   Copyright (C) 2023 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library.  If not, see
+   <https://www.gnu.org/licenses/>.  */
+
+#include_next <kernel-features.h>
+
+/* nios2 does not provide clone3.  */
+#undef __ASSUME_CLONE3
+#define __ASSUME_CLONE3 0