diff --git a/libc/include/nsswitch.h b/libc/include/nsswitch.h
deleted file mode 100644
index d19d055..0000000
--- a/libc/include/nsswitch.h
+++ /dev/null
@@ -1,236 +0,0 @@
-/*	$NetBSD: nsswitch.h,v 1.18 2005/11/29 03:12:58 christos Exp $	*/
-
-/*-
- * Copyright (c) 1997, 1998, 1999, 2004 The NetBSD Foundation, Inc.
- * All rights reserved.
- *
- * This code is derived from software contributed to The NetBSD Foundation
- * by Luke Mewburn.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *        This product includes software developed by the NetBSD
- *        Foundation, Inc. and its contributors.
- * 4. Neither the name of The NetBSD Foundation nor the names of its
- *    contributors may be used to endorse or promote products derived
- *    from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
- * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
- * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
- * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
- * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
- * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
- * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef _NSSWITCH_H
-#define _NSSWITCH_H	1
-
-#include <sys/types.h>
-#include <stdarg.h>
-
-#define	NSS_MODULE_INTERFACE_VERSION	0
-
-#ifndef _PATH_NS_CONF
-#define _PATH_NS_CONF	"/etc/nsswitch.conf"
-#endif
-
-#define	NS_CONTINUE	0
-#define	NS_RETURN	1
-
-/*
- * Layout of:
- *	uint32_t ns_src.flags
- */ 
-	/* nsswitch.conf status codes and nsdispatch(3) return values */
-#define	NS_SUCCESS	(1<<0)		/* entry was found */
-#define	NS_UNAVAIL	(1<<1)		/* source not responding, or corrupt */
-#define	NS_NOTFOUND	(1<<2)		/* source responded 'no such entry' */
-#define	NS_TRYAGAIN	(1<<3)		/* source busy, may respond to retrys */
-#define	NS_STATUSMASK	0x000000ff	/* bitmask to get the status flags */
-
-	/* internal nsdispatch(3) flags; not settable in nsswitch.conf(5)  */
-#define	NS_FORCEALL	(1<<8)		/* force all methods to be invoked; */
-
-/*
- * Currently implemented sources.
- */
-#define NSSRC_FILES	"files"		/* local files */
-#define	NSSRC_DNS	"dns"		/* DNS; IN for hosts, HS for others */
-#define	NSSRC_NIS	"nis"		/* YP/NIS */
-#define	NSSRC_COMPAT	"compat"	/* passwd,group in YP compat mode */
-
-/*
- * Currently implemented databases.
- */
-#define NSDB_HOSTS		"hosts"
-#define NSDB_GROUP		"group"
-#define NSDB_GROUP_COMPAT	"group_compat"
-#define NSDB_NETGROUP		"netgroup"
-#define NSDB_NETWORKS		"networks"
-#define NSDB_PASSWD		"passwd"
-#define NSDB_PASSWD_COMPAT	"passwd_compat"
-#define NSDB_SHELLS		"shells"
-
-/*
- * Suggested databases to implement.
- */
-#define NSDB_ALIASES		"aliases"
-#define NSDB_AUTH		"auth"
-#define NSDB_AUTOMOUNT		"automount"
-#define NSDB_BOOTPARAMS		"bootparams"
-#define NSDB_ETHERS		"ethers"
-#define NSDB_EXPORTS		"exports"
-#define NSDB_NETMASKS		"netmasks"
-#define NSDB_PHONES		"phones"
-#define NSDB_PRINTCAP		"printcap"
-#define NSDB_PROTOCOLS		"protocols"
-#define NSDB_REMOTE		"remote"
-#define NSDB_RPC		"rpc"
-#define NSDB_SENDMAILVARS	"sendmailvars"
-#define NSDB_SERVICES		"services"
-#define NSDB_TERMCAP		"termcap"
-#define NSDB_TTYS		"ttys"
-
-/*
- * ns_dtab `callback' function signature.
- */
-typedef	int (*nss_method)(void *, void *, va_list);
-
-/*
- * ns_dtab - `nsswitch dispatch table'
- * Contains an entry for each source and the appropriate function to call.
- */
-typedef struct {
-	const char	 *src;
-	nss_method	 callback;
-	void		 *cb_data;
-} ns_dtab;
-
-/*
- * Macros to help build an ns_dtab[]
- */
-#define NS_FILES_CB(F,C)	{ NSSRC_FILES,	F,	__UNCONST(C) },
-#define NS_COMPAT_CB(F,C)	{ NSSRC_COMPAT,	F,	__UNCONST(C) },
- 
-#ifdef HESIOD
-#   define NS_DNS_CB(F,C)	{ NSSRC_DNS,	F,	__UNCONST(C) },
-#else
-#   define NS_DNS_CB(F,C)
-#endif
-
-#ifdef YP
-#   define NS_NIS_CB(F,C)	{ NSSRC_NIS,	F,	__UNCONST(C) },
-#else
-#   define NS_NIS_CB(F,C)
-#endif
-
-/*
- * ns_src - `nsswitch source'
- * Used by the nsparser routines to store a mapping between a source
- * and its dispatch control flags for a given database.
- */
-typedef struct {
-	const char	*name;
-	uint32_t	 flags;
-} ns_src;
-
-
-/*
- * Default sourcelists (if nsswitch.conf is missing, corrupt,
- * or the requested database doesn't have an entry)
- */
-extern const ns_src __nsdefaultsrc[];
-extern const ns_src __nsdefaultcompat[];
-extern const ns_src __nsdefaultcompat_forceall[];
-extern const ns_src __nsdefaultfiles[];
-extern const ns_src __nsdefaultfiles_forceall[];
-extern const ns_src __nsdefaultnis[];
-extern const ns_src __nsdefaultnis_forceall[];
-
-
-/*
- * ns_mtab - `nsswitch method table'
- * An nsswitch module provides a mapping from (database name, method name)
- * tuples to the nss_method and associated callback data.  Effectively,
- * ns_dtab, but used for dynamically loaded modules.
- */
-typedef struct {
-	const char	*database;
-	const char	*name;
-	nss_method	 method;
-	void		*mdata;
-} ns_mtab;
-
-/*
- * nss_module_register_fn - module registration function
- *	called at module load
- * nss_module_unregister_fn - module un-registration function
- *	called at module unload
- */
-typedef	void (*nss_module_unregister_fn)(ns_mtab *, u_int);
-typedef	ns_mtab *(*nss_module_register_fn)(const char *, u_int *,
-					   nss_module_unregister_fn *);
-
-#ifdef _NS_PRIVATE
-
-/*
- * Private data structures for back-end nsswitch implementation.
- */
-
-/*
- * ns_dbt - `nsswitch database thang'
- * For each database in /etc/nsswitch.conf there is a ns_dbt, with its
- * name and a list of ns_src's containing the source information.
- */
-typedef struct {
-	const char	*name;		/* name of database */
-	ns_src		*srclist;	/* list of sources */
-	u_int		 srclistsize;	/* size of srclist */
-} ns_dbt;
-
-/*
- * ns_mod - `nsswitch module'
- */
-typedef struct {
-	const char	*name;		/* module name */
-	void		*handle;	/* handle from dlopen() */
-	ns_mtab		*mtab;		/* method table */
-	u_int		 mtabsize;	/* size of mtab */
-					/* called to unload module */
-	nss_module_unregister_fn unregister;
-} ns_mod;
-
-#endif /* _NS_PRIVATE */
-
-
-#include <sys/cdefs.h>
-
-__BEGIN_DECLS
-int	nsdispatch(void *, const ns_dtab [], const char *,
-			const char *, const ns_src [], ...);
-
-#ifdef _NS_PRIVATE
-int		 _nsdbtaddsrc(ns_dbt *, const ns_src *);
-void		 _nsdbtdump(const ns_dbt *);
-int		 _nsdbtput(const ns_dbt *);
-void		 _nsyyerror(const char *);
-int		 _nsyylex(void);
-#endif /* _NS_PRIVATE */
-
-__END_DECLS
-
-#endif /* !_NSSWITCH_H */