Remove --enable-obsolete-nsl configure flag

this means that *always* libnsl is only built as shared library for
backward compatibility and the NSS modules libnss_nis and libnss_nisplus
are not built at all, libnsl's headers aren't installed.

This compatibility is kept only for architectures and ABIs that have
been added in or before version 2.28.

Replacement implementations based on TIRPC, which additionally support
IPv6, are available from <https://github.com/thkukuk/>.

This change does not affect libnss_compat which does not depended
on libnsl since 2.27 and thus can be used without NIS.

libnsl code depends on Sun RPC, e.g. on --enable-obsolete-rpc (installed
libnsl headers use installed Sun RPC headers), which will be removed in
the following commit.

1 files changed, 0 insertions, 41 deletions

diff --git a/nis/nss-nisplus.h b/nis/nss-nisplus.h
deleted file mode 100644
index 92c67880b9..0000000000
--- a/nis/nss-nisplus.h
+++ /dev/null
@@ -1,41 +0,0 @@
-/* Copyright (C) 1997-2020 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-   Contributed by Thorsten Kukuk <kukuk@uni-paderborn.de>, 1997.
-
-   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/>.  */
-
-#ifndef _NIS_NSS_NISPLUS_H
-#define _NIS_NSS_NISPLUS_H	1
-
-#include <rpcsvc/nis.h>
-
-#include "nsswitch.h"
-
-NSS_DECLARE_MODULE_FUNCTIONS (nisplus)
-
-/* Convert NIS+ error number to NSS error number.  */
-extern const enum nss_status __niserr2nss_tab[] attribute_hidden;
-extern const unsigned int __niserr2nss_count attribute_hidden;
-
-static enum nss_status
-__attribute__ ((unused))
-niserr2nss (int errval)
-{
-  if ((unsigned int) errval >= __niserr2nss_count)
-    return NSS_STATUS_UNAVAIL;
-  return __niserr2nss_tab[(unsigned int) errval];
-}
-
-#endif /* nis/nss-nisplus.h */