diff --git a/lib/libatm/ip_checksum.c b/lib/libatm/ip_checksum.c
index 414d79bc6e95..e64497711329 100644
--- a/lib/libatm/ip_checksum.c
+++ b/lib/libatm/ip_checksum.c
@@ -73,7 +73,7 @@ ip_checksum(addr, count)
 	/* Compute Internet Checksum for "count" bytes
 	 * beginning at location "addr".
 	 */
-	register long sum = 0;
+	long sum = 0;
 
 	while( count > 1 ) {
 		/* This is the inner loop */
diff --git a/lib/libcompat/4.3/insque.c b/lib/libcompat/4.3/insque.c
index 3035976074d1..d290860526ea 100644
--- a/lib/libcompat/4.3/insque.c
+++ b/lib/libcompat/4.3/insque.c
@@ -34,6 +34,8 @@
 #if defined(LIBC_SCCS) && !defined(lint)
 static char sccsid[] = "@(#)insque.c	8.1 (Berkeley) 6/4/93";
 #endif /* LIBC_SCCS and not lint */
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
 
 /*
  * insque -- vax insque instruction
@@ -48,7 +50,7 @@ struct vaxque {		/* queue format expected by VAX queue instructions */
 
 void
 insque(e, prev)
-	register struct vaxque *e, *prev;
+	struct vaxque *e, *prev;
 {
 	e->vq_prev = prev;
 	e->vq_next = prev->vq_next;
diff --git a/lib/libcompat/4.3/lsearch.c b/lib/libcompat/4.3/lsearch.c
index be650b4776ca..3d4671528bfa 100644
--- a/lib/libcompat/4.3/lsearch.c
+++ b/lib/libcompat/4.3/lsearch.c
@@ -37,6 +37,8 @@
 #if defined(LIBC_SCCS) && !defined(lint)
 static char sccsid[] = "@(#)lsearch.c	8.1 (Berkeley) 6/4/93";
 #endif /* LIBC_SCCS and not lint */
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
 
 #include <sys/types.h>
 #include <unistd.h>
@@ -68,7 +70,7 @@ linear_base(key, base, nelp, width, compar, add_flag)
 	u_int *nelp, width;
 	int (*compar)(), add_flag;
 {
-	register char *element, *end;
+	char *element, *end;
 
 	end = base + *nelp * width;
 	for (element = base; element < end; element += width)
diff --git a/lib/libcompat/4.3/remque.c b/lib/libcompat/4.3/remque.c
index e0f9aa3bec52..b57046cdee69 100644
--- a/lib/libcompat/4.3/remque.c
+++ b/lib/libcompat/4.3/remque.c
@@ -34,6 +34,8 @@
 #if defined(LIBC_SCCS) && !defined(lint)
 static char sccsid[] = "@(#)remque.c	8.1 (Berkeley) 6/4/93";
 #endif /* LIBC_SCCS and not lint */
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
 
 /*
  * remque -- vax remque instruction
@@ -48,7 +50,7 @@ struct vaxque {		/* queue format expected by VAX queue instructions */
 
 void
 remque(e)
-	register struct vaxque *e;
+	struct vaxque *e;
 {
 	e->vq_prev->vq_next = e->vq_next;
 	e->vq_next->vq_prev = e->vq_prev;
diff --git a/lib/libcompat/4.4/cuserid.c b/lib/libcompat/4.4/cuserid.c
index 2fc5cc8326de..e2f0988f0668 100644
--- a/lib/libcompat/4.4/cuserid.c
+++ b/lib/libcompat/4.4/cuserid.c
@@ -34,6 +34,8 @@
 #if defined(LIBC_SCCS) && !defined(lint)
 static char sccsid[] = "@(#)cuserid.c	8.1 (Berkeley) 6/4/93";
 #endif /* LIBC_SCCS and not lint */
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
 
 #include <pwd.h>
 #include <stdio.h>
@@ -44,7 +46,7 @@ char *
 cuserid(s)
 	char *s;
 {
-	register struct passwd *pwd;
+	struct passwd *pwd;
 
 	if ((pwd = getpwuid(geteuid())) == NULL) {
 		if (s)
diff --git a/lib/libcompat/regexp/regexp.c b/lib/libcompat/regexp/regexp.c
index fc97378f759f..8276ffcf6866 100644
--- a/lib/libcompat/regexp/regexp.c
+++ b/lib/libcompat/regexp/regexp.c
@@ -32,6 +32,10 @@
  * precedence is structured in regular expressions.  Serious changes in
  * regular-expression syntax might require a total rethink.
  */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
 #include <limits.h>
 #include <regexp.h>
 #include <stdio.h>
@@ -205,10 +209,10 @@ regexp *
 regcomp(exp)
 const char *exp;
 {
-	register regexp *r;
-	register char *scan;
-	register char *longest;
-	register int len;
+	regexp *r;
+	char *scan;
+	char *longest;
+	int len;
 	int flags;
 
 	if (exp == NULL)
@@ -296,10 +300,10 @@ reg(paren, flagp)
 int paren;			/* Parenthesized? */
 int *flagp;
 {
-	register char *ret;
-	register char *br;
-	register char *ender;
-	register int parno;
+	char *ret;
+	char *br;
+	char *ender;
+	int parno;
 	int flags;
 
 	*flagp = HASWIDTH;	/* Tentatively. */
@@ -367,9 +371,9 @@ static char *
 regbranch(flagp)
 int *flagp;
 {
-	register char *ret;
-	register char *chain;
-	register char *latest;
+	char *ret;
+	char *chain;
+	char *latest;
 	int flags;
 
 	*flagp = WORST;		/* Tentatively. */
@@ -407,9 +411,9 @@ static char *
 regpiece(flagp)
 int *flagp;
 {
-	register char *ret;
-	register char op;
-	register char *next;
+	char *ret;
+	char op;
+	char *next;
 	int flags;
 
 	ret = regatom(&flags);
@@ -471,7 +475,7 @@ static char *
 regatom(flagp)
 int *flagp;
 {
-	register char *ret;
+	char *ret;
 	int flags;
 
 	*flagp = WORST;		/* Tentatively. */
@@ -489,8 +493,8 @@ int *flagp;
 		*flagp |= HASWIDTH|SIMPLE;
 		break;
 	case '[': {
-			register int class;
-			register int classend;
+			int class;
+			int classend;
 			int i;
 
 			if (*regparse == '^') {	/* Complement of range. */
@@ -597,7 +601,7 @@ int *flagp;
 		 */
 		{
 			char *regprev;
-			register char ch;
+			char ch;
 
 			regparse--;			/* Look at cur char */
 			ret = regnode(EXACTLY);
@@ -661,8 +665,8 @@ static char *			/* Location. */
 regnode(op)
 char op;
 {
-	register char *ret;
-	register char *ptr;
+	char *ret;
+	char *ptr;
 
 	ret = regcode;
 	if (ret == &regdummy) {
@@ -702,9 +706,9 @@ reginsert(op, opnd)
 char op;
 char *opnd;
 {
-	register char *src;
-	register char *dst;
-	register char *place;
+	char *src;
+	char *dst;
+	char *place;
 
 	if (regcode == &regdummy) {
 		regsize += 3;
@@ -731,9 +735,9 @@ regtail(p, val)
 char *p;
 char *val;
 {
-	register char *scan;
-	register char *temp;
-	register int offset;
+	char *scan;
+	char *temp;
+	int offset;
 
 	if (p == &regdummy)
 		return;
@@ -799,10 +803,10 @@ STATIC char *regprop();
  */
 int
 regexec(prog, string)
-register const regexp *prog;
-register const char *string;
+const regexp *prog;
+const char *string;
 {
-	register char *s;
+	char *s;
 	extern char *strchr();
 
 	/* Be paranoid... */
@@ -864,9 +868,9 @@ regtry(prog, string)
 regexp *prog;
 char *string;
 {
-	register int i;
-	register char **sp;
-	register char **ep;
+	int i;
+	char **sp;
+	char **ep;
 
 	reginput = string;
 	regstartp = prog->startp;
@@ -900,7 +904,7 @@ static int			/* 0 failure, 1 success */
 regmatch(prog)
 char *prog;
 {
-	register char *scan;	/* Current node. */
+	char *scan;	/* Current node. */
 	char *next;		/* Next node. */
 
 	scan = prog;
@@ -945,8 +949,8 @@ char *prog;
 			reginput++;
 			break;
 		case EXACTLY: {
-				register int len;
-				register char *opnd;
+				int len;
+				char *opnd;
 
 				opnd = OPERAND(scan);
 				/* Inline the first character, for speed. */
@@ -981,8 +985,8 @@ char *prog;
 		case OPEN+7:
 		case OPEN+8:
 		case OPEN+9: {
-				register int no;
-				register char *save;
+				int no;
+				char *save;
 
 				no = OP(scan) - OPEN;
 				save = reginput;
@@ -1009,8 +1013,8 @@ char *prog;
 		case CLOSE+7:
 		case CLOSE+8:
 		case CLOSE+9: {
-				register int no;
-				register char *save;
+				int no;
+				char *save;
 
 				no = OP(scan) - CLOSE;
 				save = reginput;
@@ -1029,7 +1033,7 @@ char *prog;
 			}
 			break;
 		case BRANCH: {
-				register char *save;
+				char *save;
 
 				if (OP(next) != BRANCH)		/* No choice. */
 					next = OPERAND(scan);	/* Avoid recursion. */
@@ -1048,10 +1052,10 @@ char *prog;
 			break;
 		case STAR:
 		case PLUS: {
-				register char nextch;
-				register int no;
-				register char *save;
-				register int min;
+				char nextch;
+				int no;
+				char *save;
+				int min;
 
 				/*
 				 * Lookahead to avoid useless match attempts
@@ -1102,9 +1106,9 @@ static int
 regrepeat(p)
 char *p;
 {
-	register int count = 0;
-	register char *scan;
-	register char *opnd;
+	int count = 0;
+	char *scan;
+	char *opnd;
 
 	scan = reginput;
 	opnd = OPERAND(p);
@@ -1146,9 +1150,9 @@ char *p;
  */
 static char *
 regnext(p)
-register char *p;
+char *p;
 {
-	register int offset;
+	int offset;
 
 	if (p == &regdummy)
 		return(NULL);
@@ -1174,9 +1178,9 @@ void
 regdump(r)
 regexp *r;
 {
-	register char *s;
-	register char op = EXACTLY;	/* Arbitrary non-END op. */
-	register char *next;
+	char *s;
+	char op = EXACTLY;	/* Arbitrary non-END op. */
+	char *next;
 	extern char *strchr();
 
 
@@ -1218,7 +1222,7 @@ static char *
 regprop(op)
 char *op;
 {
-	register char *p;
+	char *p;
 	static char buf[50];
 
 	(void) strcpy(buf, ":");
@@ -1317,9 +1321,9 @@ strcspn(s1, s2)
 char *s1;
 char *s2;
 {
-	register char *scan1;
-	register char *scan2;
-	register int count;
+	char *scan1;
+	char *scan2;
+	int count;
 
 	count = 0;
 	for (scan1 = s1; *scan1 != '\0'; scan1++) {
diff --git a/lib/libcompat/regexp/regsub.c b/lib/libcompat/regexp/regsub.c
index e55b9b624d1d..4ab921cf6f20 100644
--- a/lib/libcompat/regexp/regsub.c
+++ b/lib/libcompat/regexp/regsub.c
@@ -18,6 +18,10 @@
  *	3. Altered versions must be plainly marked as such, and must not
  *		be misrepresented as being the original software.
  */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
 #include <regexp.h>
 #include <stdio.h>
 #include <string.h>
@@ -38,11 +42,11 @@ const regexp *prog;
 const char *source;
 char *dest;
 {
-	register char *src;
-	register char *dst;
-	register char c;
-	register int no;
-	register int len;
+	char *src;
+	char *dst;
+	char c;
+	int no;
+	int len;
 	extern char *strncpy();
 
 	if (prog == NULL || source == NULL || dest == NULL) {
diff --git a/lib/libdevstat/devstat.c b/lib/libdevstat/devstat.c
index 72b6649e94ec..09524cc71747 100644
--- a/lib/libdevstat/devstat.c
+++ b/lib/libdevstat/devstat.c
@@ -516,7 +516,7 @@ devstat_selectdevs(struct device_selection **dev_select, int *num_selected,
 		   devstat_select_mode select_mode, int maxshowdevs,
 		   int perf_select)
 {
-	register int i, j, k;
+	int i, j, k;
 	int init_selections = 0, init_selected_var = 0;
 	struct device_selection *old_dev_select = NULL;
 	int old_num_selections = 0, old_num_selected;
@@ -979,7 +979,7 @@ devstat_buildmatch(char *match_str, struct devstat_match **matches,
 	char *tstr[5];
 	char **tempstr;
 	int num_args;
-	register int i, j;
+	int i, j;
 	const char *func_name = "devstat_buildmatch";
 
 	/* We can't do much without a string to parse */
diff --git a/lib/libipx/ipx_addr.c b/lib/libipx/ipx_addr.c
index 7a4c6b8afe7d..30b3f6a2d6d4 100644
--- a/lib/libipx/ipx_addr.c
+++ b/lib/libipx/ipx_addr.c
@@ -104,7 +104,7 @@ Field(buf, out, len)
 	u_char *out;
 	int len;
 {
-	register char *bp = buf;
+	char *bp = buf;
 	int i, ibase, base16 = 0, base10 = 0, clen = 0;
 	int hb[6], *hp;
 	char *fmt;
diff --git a/lib/libipx/ipx_ntoa.c b/lib/libipx/ipx_ntoa.c
index 437a2b30c27e..d27a121553f4 100644
--- a/lib/libipx/ipx_ntoa.c
+++ b/lib/libipx/ipx_ntoa.c
@@ -50,9 +50,9 @@ ipx_ntoa(addr)
 	static char obuf[40];
 	union { union ipx_net net_e; u_long long_e; } net;
 	u_short port = htons(addr.x_port);
-	register char *cp;
+	char *cp;
 	char *cp2;
-	register u_char *up = addr.x_host.c_host;
+	u_char *up = addr.x_host.c_host;
 	u_char *uplim = up + 6;
 	static char *spectHex();
 
@@ -87,7 +87,7 @@ spectHex(p0)
 {
 	int ok = 0;
 	int nonzero = 0;
-	register char *p = p0;
+	char *p = p0;
 	for (; *p; p++) switch (*p) {
 
 	case 'a': case 'b': case 'c': case 'd': case 'e': case 'f':
diff --git a/lib/libkvm/kvm.c b/lib/libkvm/kvm.c
index 32ff245c1499..73652f38120c 100644
--- a/lib/libkvm/kvm.c
+++ b/lib/libkvm/kvm.c
@@ -132,7 +132,7 @@ _kvm_syserr(kd, program, fmt, va_alist)
 #endif
 {
 	va_list ap;
-	register int n;
+	int n;
 
 #if __STDC__
 	va_start(ap, fmt);
@@ -144,7 +144,7 @@ _kvm_syserr(kd, program, fmt, va_alist)
 		(void)vfprintf(stderr, fmt, ap);
 		(void)fprintf(stderr, ": %s\n", strerror(errno));
 	} else {
-		register char *cp = kd->errbuf;
+		char *cp = kd->errbuf;
 
 		(void)vsnprintf(cp, sizeof(kd->errbuf), (char *)fmt, ap);
 		n = strlen(cp);
@@ -156,8 +156,8 @@ _kvm_syserr(kd, program, fmt, va_alist)
 
 void *
 _kvm_malloc(kd, n)
-	register kvm_t *kd;
-	register size_t n;
+	kvm_t *kd;
+	size_t n;
 {
 	void *p;
 
@@ -169,7 +169,7 @@ _kvm_malloc(kd, n)
 
 static kvm_t *
 _kvm_open(kd, uf, mf, flag, errout)
-	register kvm_t *kd;
+	kvm_t *kd;
 	const char *uf;
 	const char *mf;
 	int flag;
@@ -257,7 +257,7 @@ kvm_openfiles(uf, mf, sf, flag, errout)
 	int flag;
 	char *errout;
 {
-	register kvm_t *kd;
+	kvm_t *kd;
 
 	if ((kd = malloc(sizeof(*kd))) == NULL) {
 		(void)strlcpy(errout, strerror(errno), _POSIX2_LINE_MAX);
@@ -276,7 +276,7 @@ kvm_open(uf, mf, sf, flag, errstr)
 	int flag;
 	const char *errstr;
 {
-	register kvm_t *kd;
+	kvm_t *kd;
 
 	if ((kd = malloc(sizeof(*kd))) == NULL) {
 		if (errstr != NULL)
@@ -293,7 +293,7 @@ int
 kvm_close(kd)
 	kvm_t *kd;
 {
-	register int error = 0;
+	int error = 0;
 
 	if (kd->pmfd >= 0)
 		error |= close(kd->pmfd);
@@ -317,8 +317,8 @@ kvm_nlist(kd, nl)
 	kvm_t *kd;
 	struct nlist *nl;
 {
-	register struct nlist *p;
-	register int nvalid;
+	struct nlist *p;
+	int nvalid;
 	struct kld_sym_lookup lookup;
 
 	/*
@@ -360,12 +360,12 @@ kvm_nlist(kd, nl)
 ssize_t
 kvm_read(kd, kva, buf, len)
 	kvm_t *kd;
-	register u_long kva;
-	register void *buf;
-	register size_t len;
+	u_long kva;
+	void *buf;
+	size_t len;
 {
-	register int cc;
-	register void *cp;
+	int cc;
+	void *cp;
 
 	if (ISALIVE(kd)) {
 		/*
@@ -424,11 +424,11 @@ kvm_read(kd, kva, buf, len)
 ssize_t
 kvm_write(kd, kva, buf, len)
 	kvm_t *kd;
-	register u_long kva;
-	register const void *buf;
-	register size_t len;
+	u_long kva;
+	const void *buf;
+	size_t len;
 {
-	register int cc;
+	int cc;
 
 	if (ISALIVE(kd)) {
 		/*
diff --git a/lib/libkvm/kvm_file.c b/lib/libkvm/kvm_file.c
index f0c1b9318994..832ab3c23a93 100644
--- a/lib/libkvm/kvm_file.c
+++ b/lib/libkvm/kvm_file.c
@@ -84,7 +84,7 @@ kvm_deadfiles(kd, op, arg, filehead_o, nfiles)
 {
 	int buflen = kd->arglen, n = 0;
 	struct file *fp;
-	register char *where = kd->argspc;
+	char *where = kd->argspc;
 	struct filelist filehead;
 
 	/*
diff --git a/lib/libkvm/kvm_proc.c b/lib/libkvm/kvm_proc.c
index 5c02a023b41d..2708a0a9414b 100644
--- a/lib/libkvm/kvm_proc.c
+++ b/lib/libkvm/kvm_proc.c
@@ -108,7 +108,7 @@ kvm_proclist(kd, what, arg, p, bp, maxcnt)
 	struct kinfo_proc *bp;
 	int maxcnt;
 {
-	register int cnt = 0;
+	int cnt = 0;
 	struct kinfo_proc kinfo_proc, *kp;
 	struct pgrp pgrp;
 	struct session sess;
@@ -358,8 +358,8 @@ kvm_deadprocs(kd, what, arg, a_allproc, a_zombproc, maxcnt)
 	u_long a_zombproc;
 	int maxcnt;
 {
-	register struct kinfo_proc *bp = kd->procbase;
-	register int acnt, zcnt;
+	struct kinfo_proc *bp = kd->procbase;
+	int acnt, zcnt;
 	struct proc *p;
 
 	if (KREAD(kd, a_allproc, &p)) {
@@ -505,14 +505,14 @@ static char **
 kvm_argv(kd, kp, addr, narg, maxcnt)
 	kvm_t *kd;
 	struct kinfo_proc *kp;
-	register u_long addr;
-	register int narg;
-	register int maxcnt;
+	u_long addr;
+	int narg;
+	int maxcnt;
 {
-	register char *np, *cp, *ep, *ap;
-	register u_long oaddr = -1;
-	register int len, cc;
-	register char **argv;
+	char *np, *cp, *ep, *ap;
+	u_long oaddr = -1;
+	int len, cc;
+	char **argv;
 
 	/*
 	 * Check that there aren't an unreasonable number of agruments,
@@ -620,9 +620,9 @@ kvm_argv(kd, kp, addr, narg, maxcnt)
 
 		/* will we exceed the malloc/realloced buffer? */
 		if (len + cc > kd->arglen) {
-			register int off;
-			register char **pp;
-			register char *op = kd->argspc;
+			int off;
+			char **pp;
+			char *op = kd->argspc;
 
 			kd->arglen *= 2;
 			kd->argspc = (char *)_kvm_realloc(kd, kd->argspc,
@@ -843,11 +843,11 @@ ssize_t
 kvm_uread(kd, kp, uva, buf, len)
 	kvm_t *kd;
 	struct kinfo_proc *kp;
-	register u_long uva;
-	register char *buf;
-	register size_t len;
+	u_long uva;
+	char *buf;
+	size_t len;
 {
-	register char *cp;
+	char *cp;
 	char procfile[MAXPATHLEN];
 	ssize_t amount;
 	int fd;
diff --git a/lib/libkvm/kvm_sparc.c b/lib/libkvm/kvm_sparc.c
index df26ad7decdf..c74e5579ed73 100644
--- a/lib/libkvm/kvm_sparc.c
+++ b/lib/libkvm/kvm_sparc.c
@@ -92,9 +92,9 @@ int
 _kvm_initvtop(kd)
 	kvm_t *kd;
 {
-	register int i;
-	register int off;
-	register struct vmstate *vm;
+	int i;
+	int off;
+	struct vmstate *vm;
 	struct stat st;
 	struct nlist nlist[2];
 
@@ -168,8 +168,8 @@ _kvm_uvatop(kd, p, va, pa)
 	u_long *pa;
 {
 	int kva, pte;
-	register int off, frame;
-	register struct vmspace *vms = p->p_vmspace;
+	int off, frame;
+	struct vmspace *vms = p->p_vmspace;
 
 	if ((u_long)vms < KERNBASE) {
 		_kvm_err(kd, kd->program, "_kvm_uvatop: corrupt proc");
@@ -218,10 +218,10 @@ _kvm_kvatop(kd, va, pa)
 	u_long va;
 	u_long *pa;
 {
-	register struct vmstate *vm;
-	register int s;
-	register int pte;
-	register int off;
+	struct vmstate *vm;
+	int s;
+	int pte;
+	int off;
 
 	if (va >= KERNBASE) {
 		vm = kd->vmst;
diff --git a/lib/libmd/rmd160c.c b/lib/libmd/rmd160c.c
index 5fe248678147..2467d71bc2c2 100644
--- a/lib/libmd/rmd160c.c
+++ b/lib/libmd/rmd160c.c
@@ -106,7 +106,7 @@ RIPEMD160_CTX *c;
 const unsigned char *data;
 size_t len;
 	{
-	register u_int32_t *p;
+	u_int32_t *p;
 	int sw,sc;
 	u_int32_t l;
 
@@ -276,7 +276,7 @@ RIPEMD160_CTX *ctx;
 const u_int32_t *X;
 int num;
 	{
-	register u_int32_t A,B,C,D,E;
+	u_int32_t A,B,C,D,E;
 	u_int32_t a,b,c,d,e;
 
 	for (;;)
@@ -475,9 +475,9 @@ void RIPEMD160_Final(md, c)
 unsigned char *md;
 RIPEMD160_CTX *c;
 	{
-	register int i,j;
-	register u_int32_t l;
-	register u_int32_t *p;
+	int i,j;
+	u_int32_t l;
+	u_int32_t *p;
 	static unsigned char end[4]={0x80,0x00,0x00,0x00};
 	unsigned char *cp=end;
 
diff --git a/lib/libmd/sha0c.c b/lib/libmd/sha0c.c
index 6d115eaa52b4..47ea62b212d9 100644
--- a/lib/libmd/sha0c.c
+++ b/lib/libmd/sha0c.c
@@ -120,7 +120,7 @@ SHA_CTX *c;
 const unsigned char *data;
 size_t len;
 	{
-	register u_int32_t *p;
+	u_int32_t *p;
 	int ew,ec,sw,sc;
 	u_int32_t l;
 
@@ -290,7 +290,7 @@ SHA_CTX *c;
 const u_int32_t *W;
 int num;
 	{
-	register u_int32_t A,B,C,D,E,T;
+	u_int32_t A,B,C,D,E,T;
 	u_int32_t X[16];
 
 	A=c->h0;
@@ -408,9 +408,9 @@ void SHA_Final(md, c)
 unsigned char *md;
 SHA_CTX *c;
 	{
-	register int i,j;
-	register u_int32_t l;
-	register u_int32_t *p;
+	int i,j;
+	u_int32_t l;
+	u_int32_t *p;
 	static unsigned char end[4]={0x80,0x00,0x00,0x00};
 	unsigned char *cp=end;
 
diff --git a/lib/libmd/sha1c.c b/lib/libmd/sha1c.c
index dc445e82175a..97a6ceb77389 100644
--- a/lib/libmd/sha1c.c
+++ b/lib/libmd/sha1c.c
@@ -148,7 +148,7 @@ SHA1_Update(c, data, len)
 	const unsigned char *data;
 	size_t len;
 {
-	register u_int32_t *p;
+	u_int32_t *p;
 	int ew,ec,sw,sc;
 	u_int32_t l;
 
@@ -321,7 +321,7 @@ sha1_block(c, W, num)
 	const u_int32_t *W;
 	int num;
 {
-	register u_int32_t A,B,C,D,E,T;
+	u_int32_t A,B,C,D,E,T;
 	u_int32_t X[16];
 
 	A=c->h0;
@@ -440,9 +440,9 @@ void SHA1_Final(md, c)
 unsigned char *md;
 SHA_CTX *c;
 	{
-	register int i,j;
-	register u_int32_t l;
-	register u_int32_t *p;
+	int i,j;
+	u_int32_t l;
+	u_int32_t *p;
 	static unsigned char end[4]={0x80,0x00,0x00,0x00};
 	unsigned char *cp=end;
 
diff --git a/lib/libncurses/termcap.c b/lib/libncurses/termcap.c
index fc2153099284..0d98d7e78624 100644
--- a/lib/libncurses/termcap.c
+++ b/lib/libncurses/termcap.c
@@ -103,8 +103,8 @@ int
 _nc_read_termcap_entry(const char *const name, TERMTYPE *const tp)
 {
 	ENTRY	*ep;
-	register char *p;
-	register char *cp;
+	char *p;
+	char *cp;
 	char  *dummy;
 	char **fname;
 	char  *home;
diff --git a/lib/libstand/arp.c b/lib/libstand/arp.c
index b84fe47f4e95..59f0ce5536d5 100644
--- a/lib/libstand/arp.c
+++ b/lib/libstand/arp.c
@@ -74,12 +74,12 @@ static	ssize_t arprecv(struct iodesc *, void *, size_t, time_t);
 /* Broadcast an ARP packet, asking who has addr on interface d */
 u_char *
 arpwhohas(d, addr)
-	register struct iodesc *d;
+	struct iodesc *d;
 	struct in_addr addr;
 {
-	register int i;
-	register struct ether_arp *ah;
-	register struct arp_list *al;
+	int i;
+	struct ether_arp *ah;
+	struct arp_list *al;
 	struct {
 		struct ether_header eh;
 		struct {
@@ -152,9 +152,9 @@ arpwhohas(d, addr)
 
 static ssize_t
 arpsend(d, pkt, len)
-	register struct iodesc *d;
-	register void *pkt;
-	register size_t len;
+	struct iodesc *d;
+	void *pkt;
+	size_t len;
 {
 
 #ifdef ARP_DEBUG
@@ -171,13 +171,13 @@ arpsend(d, pkt, len)
  */
 static ssize_t
 arprecv(d, pkt, len, tleft)
-	register struct iodesc *d;
-	register void *pkt;
-	register size_t len;
+	struct iodesc *d;
+	void *pkt;
+	size_t len;
 	time_t tleft;
 {
-	register ssize_t n;
-	register struct ether_arp *ah;
+	ssize_t n;
+	struct ether_arp *ah;
 	u_int16_t etype;	/* host order */
 
 #ifdef ARP_DEBUG
@@ -261,8 +261,8 @@ arprecv(d, pkt, len, tleft)
  */
 void
 arp_reply(d, pkt)
-	register struct iodesc *d;
-	register void *pkt;		/* the request */
+	struct iodesc *d;
+	void *pkt;		/* the request */
 {
 	struct ether_arp *arp = pkt;
 
diff --git a/lib/libstand/bootp.c b/lib/libstand/bootp.c
index 2de2f1fa891c..0a6d31034b11 100644
--- a/lib/libstand/bootp.c
+++ b/lib/libstand/bootp.c
@@ -88,7 +88,7 @@ bootp(sock, flag)
 	int flag;
 {
 	struct iodesc *d;
-	register struct bootp *bp;
+	struct bootp *bp;
 	struct {
 		u_char header[HEADER_SIZE];
 		struct bootp wbootp;
@@ -256,11 +256,11 @@ bootp(sock, flag)
 /* Transmit a bootp request */
 static ssize_t
 bootpsend(d, pkt, len)
-	register struct iodesc *d;
-	register void *pkt;
-	register size_t len;
+	struct iodesc *d;
+	void *pkt;
+	size_t len;
 {
-	register struct bootp *bp;
+	struct bootp *bp;
 
 #ifdef BOOTP_DEBUG
 	if (debug)
@@ -280,13 +280,13 @@ bootpsend(d, pkt, len)
 
 static ssize_t
 bootprecv(d, pkt, len, tleft)
-register struct iodesc *d;
-register void *pkt;
-register size_t len;
+struct iodesc *d;
+void *pkt;
+size_t len;
 time_t tleft;
 {
-	register ssize_t n;
-	register struct bootp *bp;
+	ssize_t n;
+	struct bootp *bp;
 
 #ifdef BOOTP_DEBUGx
 	if (debug)
@@ -339,12 +339,12 @@ time_t tleft;
 
 static int
 vend_rfc1048(cp, len)
-	register u_char *cp;
+	u_char *cp;
 	u_int len;
 {
-	register u_char *ep;
-	register int size;
-	register u_char tag;
+	u_char *ep;
+	int size;
+	u_char tag;
 
 #ifdef BOOTP_DEBUG
 	if (debug)
@@ -400,7 +400,7 @@ static void
 vend_cmu(cp)
 	u_char *cp;
 {
-	register struct cmu_vend *vp;
+	struct cmu_vend *vp;
 
 #ifdef BOOTP_DEBUG
 	if (debug)
diff --git a/lib/libstand/ether.c b/lib/libstand/ether.c
index af26bcf9c493..1fc5ff2ed525 100644
--- a/lib/libstand/ether.c
+++ b/lib/libstand/ether.c
@@ -65,8 +65,8 @@ sendether(d, pkt, len, dea, etype)
 	u_char *dea;
 	int etype;
 {
-	register ssize_t n;
-	register struct ether_header *eh;
+	ssize_t n;
+	struct ether_header *eh;
 
 #ifdef ETHER_DEBUG
  	if (debug)
@@ -95,14 +95,14 @@ sendether(d, pkt, len, dea, etype)
  */
 ssize_t
 readether(d, pkt, len, tleft, etype)
-	register struct iodesc *d;
-	register void *pkt;
-	register size_t len;
+	struct iodesc *d;
+	void *pkt;
+	size_t len;
 	time_t tleft;
-	register u_int16_t *etype;
+	u_int16_t *etype;
 {
-	register ssize_t n;
-	register struct ether_header *eh;
+	ssize_t n;
+	struct ether_header *eh;
 
 #ifdef ETHER_DEBUG
  	if (debug)
@@ -138,11 +138,11 @@ readether(d, pkt, len, tleft, etype)
 static char digits[] = "0123456789abcdef";
 char *
 ether_sprintf(ap)
-        register u_char *ap;
+        u_char *ap;
 {
-	register int i;
+	int i;
 	static char etherbuf[18];
-	register char *cp = etherbuf;
+	char *cp = etherbuf;
 
 	for (i = 0; i < 6; i++) {
 		*cp++ = digits[*ap >> 4];
diff --git a/lib/libstand/fstat.c b/lib/libstand/fstat.c
index 8504acfb8bb0..3a5f39f93fae 100644
--- a/lib/libstand/fstat.c
+++ b/lib/libstand/fstat.c
@@ -45,7 +45,7 @@ fstat(fd, sb)
 	int fd;
 	struct stat *sb;
 {
-	register struct open_file *f = &files[fd];
+	struct open_file *f = &files[fd];
 
 	if ((unsigned)fd >= SOPEN_MAX || f->f_flags == 0) {
 		errno = EBADF;
diff --git a/lib/libstand/gets.c b/lib/libstand/gets.c
index dec627dd192f..cb0e7557c160 100644
--- a/lib/libstand/gets.c
+++ b/lib/libstand/gets.c
@@ -45,8 +45,8 @@ __FBSDID("$FreeBSD$");
 void
 ngets(char *buf, int n)
 {
-    register int c;
-    register char *lp;
+    int c;
+    char *lp;
 
     for (lp = buf;;)
 	switch (c = getchar() & 0177) {
@@ -65,7 +65,7 @@ ngets(char *buf, int n)
 	    }
 	    break;
 	case 'r'&037: {
-	    register char *p;
+	    char *p;
 
 	    putchar('\n');
 	    for (p = buf; p < lp; ++p)
diff --git a/lib/libstand/in_cksum.c b/lib/libstand/in_cksum.c
index 11bc75c45cf9..1fc734454192 100644
--- a/lib/libstand/in_cksum.c
+++ b/lib/libstand/in_cksum.c
@@ -52,11 +52,11 @@ __FBSDID("$FreeBSD$");
  */
 int
 in_cksum(p, len)
-	register void *p;
-	register int len;
+	void *p;
+	int len;
 {
-	register int sum = 0, oddbyte = 0, v = 0;
-	register u_char *cp = p;
+	int sum = 0, oddbyte = 0, v = 0;
+	u_char *cp = p;
 
 	/* we assume < 2^16 bytes being summed */
 	while (len > 0) {
diff --git a/lib/libstand/ioctl.c b/lib/libstand/ioctl.c
index 45a014c39d4e..debd9e4ef8b3 100644
--- a/lib/libstand/ioctl.c
+++ b/lib/libstand/ioctl.c
@@ -75,7 +75,7 @@ ioctl(fd, cmd, arg)
 	u_long cmd;
 	char *arg;
 {
-	register struct open_file *f = &files[fd];
+	struct open_file *f = &files[fd];
 
 	if ((unsigned)fd >= SOPEN_MAX || f->f_flags == 0) {
 		errno = EBADF;
diff --git a/lib/libstand/net.c b/lib/libstand/net.c
index 06d9dbf56baa..89ef12d30aa8 100644
--- a/lib/libstand/net.c
+++ b/lib/libstand/net.c
@@ -73,16 +73,16 @@ __FBSDID("$FreeBSD$");
  */
 ssize_t
 sendrecv(d, sproc, sbuf, ssize, rproc, rbuf, rsize)
-	register struct iodesc *d;
-	register ssize_t (*sproc)(struct iodesc *, void *, size_t);
-	register void *sbuf;
-	register size_t ssize;
-	register ssize_t (*rproc)(struct iodesc *, void *, size_t, time_t);
-	register void *rbuf;
-	register size_t rsize;
+	struct iodesc *d;
+	ssize_t (*sproc)(struct iodesc *, void *, size_t);
+	void *sbuf;
+	size_t ssize;
+	ssize_t (*rproc)(struct iodesc *, void *, size_t, time_t);
+	void *rbuf;
+	size_t rsize;
 {
-	register ssize_t cc;
-	register time_t t, tmo, tlast;
+	ssize_t cc;
+	time_t t, tmo, tlast;
 	long tleft;
 
 #ifdef NET_DEBUG
@@ -140,11 +140,11 @@ n_long
 inet_addr(cp)
 	char *cp;
 {
-	register u_long val;
-	register int n;
-	register char c;
+	u_long val;
+	int n;
+	char c;
 	u_int parts[4];
-	register u_int *pp = parts;
+	u_int *pp = parts;
 
 	for (;;) {
 		/*
@@ -224,11 +224,11 @@ inet_ntoa(ia)
 /* Similar to inet_ntoa() */
 char *
 intoa(addr)
-	register n_long addr;
+	n_long addr;
 {
-	register char *cp;
-	register u_int byte;
-	register int n;
+	char *cp;
+	u_int byte;
+	int n;
 	static char buf[17];	/* strlen(".255.255.255.255") + 1 */
 
 	addr = ntohl(addr);
diff --git a/lib/libstand/netif.c b/lib/libstand/netif.c
index baae9a91f8f8..c260690c503c 100644
--- a/lib/libstand/netif.c
+++ b/lib/libstand/netif.c
@@ -293,7 +293,7 @@ netif_open(machdep_hint)
 	void *machdep_hint;
 {
 	int fd;
-	register struct iodesc *s;
+	struct iodesc *s;
 	struct netif *nif;
 	
 	/* find a free socket */
diff --git a/lib/libstand/nfs.c b/lib/libstand/nfs.c
index 1fc62b7bb70b..1b9e8d2eca34 100644
--- a/lib/libstand/nfs.c
+++ b/lib/libstand/nfs.c
@@ -148,11 +148,11 @@ struct fs_ops nfs_fsops = {
  */
 int
 nfs_getrootfh(d, path, fhp)
-	register struct iodesc *d;
+	struct iodesc *d;
 	char *path;
 	u_char *fhp;
 {
-	register int len;
+	int len;
 	struct args {
 		n_long	len;
 		char	path[FNAME_SIZE];
@@ -211,7 +211,7 @@ nfs_lookupfh(d, name, newfd)
 	const char *name;
 	struct nfs_iodesc *newfd;
 {
-	register int len, rlen;
+	int len, rlen;
 	struct args {
 		u_char	fh[NFS_FHSIZE];
 		n_long	len;
@@ -390,8 +390,8 @@ nfs_open(upath, f)
 #ifndef NFS_NOSYMLINK
 	struct nfs_iodesc *newfd;
 	struct nfsv2_fattrs *fa;
-	register char *cp, *ncp;
-	register int c;
+	char *cp, *ncp;
+	int c;
 	char namebuf[NFS_MAXPATHLEN + 1];
 	char linkbuf[NFS_MAXPATHLEN + 1];
 	int nlinks = 0;
@@ -459,7 +459,7 @@ nfs_open(upath, f)
 		 * Get next component of path name.
 		 */
 		{
-			register int len = 0;
+			int len = 0;
 			
 			ncp = cp;
 			while ((c = *cp) != '\0' && c != '/') {
@@ -560,7 +560,7 @@ int
 nfs_close(f)
 	struct open_file *f;
 {
-	register struct nfs_iodesc *fp = (struct nfs_iodesc *)f->f_fsdata;
+	struct nfs_iodesc *fp = (struct nfs_iodesc *)f->f_fsdata;
 
 #ifdef NFS_DEBUG
 	if (debug)
@@ -584,9 +584,9 @@ nfs_read(f, buf, size, resid)
 	size_t size;
 	size_t *resid;	/* out */
 {
-	register struct nfs_iodesc *fp = (struct nfs_iodesc *)f->f_fsdata;
-	register ssize_t cc;
-	register char *addr = buf;
+	struct nfs_iodesc *fp = (struct nfs_iodesc *)f->f_fsdata;
+	ssize_t cc;
+	char *addr = buf;
 	
 #ifdef NFS_DEBUG
 	if (debug)
@@ -641,7 +641,7 @@ nfs_seek(f, offset, where)
 	off_t offset;
 	int where;
 {
-	register struct nfs_iodesc *d = (struct nfs_iodesc *)f->f_fsdata;
+	struct nfs_iodesc *d = (struct nfs_iodesc *)f->f_fsdata;
 	n_long size = ntohl(d->fa.fa_size);
 
 	switch (where) {
@@ -671,7 +671,7 @@ nfs_stat(f, sb)
 	struct stat *sb;
 {
 	struct nfs_iodesc *fp = (struct nfs_iodesc *)f->f_fsdata;
-	register n_long ftype, mode;
+	n_long ftype, mode;
 
 	ftype = ntohl(fp->fa.fa_type);
 	mode  = ntohl(fp->fa.fa_mode);
@@ -689,7 +689,7 @@ nfs_stat(f, sb)
 static int
 nfs_readdir(struct open_file *f, struct dirent *d)
 {
-	register struct nfs_iodesc *fp = (struct nfs_iodesc *)f->f_fsdata;
+	struct nfs_iodesc *fp = (struct nfs_iodesc *)f->f_fsdata;
 	struct nfs_readdir_args *args;
 	struct nfs_readdir_data *rd;
 	struct nfs_readdir_off  *roff = NULL;
diff --git a/lib/libstand/printf.c b/lib/libstand/printf.c
index a9ed2258e11c..6afcbfd37916 100644
--- a/lib/libstand/printf.c
+++ b/lib/libstand/printf.c
@@ -106,11 +106,11 @@ vsprintf(char *buf, const char *cfmt, va_list ap)
  */
 static char *
 ksprintn(ul, base, lenp)
-	register u_long ul;
-	register int base, *lenp;
+	u_long ul;
+	int base, *lenp;
 {					/* A long in base 8, plus NULL. */
 	static char buf[sizeof(long) * NBBY / 3 + 2];
-	register char *p;
+	char *p;
 
 	p = buf;
 	do {
diff --git a/lib/libstand/qdivrem.c b/lib/libstand/qdivrem.c
index d064c426a877..c6fd4ebc11d4 100644
--- a/lib/libstand/qdivrem.c
+++ b/lib/libstand/qdivrem.c
@@ -65,9 +65,9 @@ typedef u_long digit;
  * We may assume len >= 0.  NOTE THAT THIS WRITES len+1 DIGITS.
  */
 static void
-shl(register digit *p, register int len, register int sh)
+shl(digit *p, int len, int sh)
 {
-	register int i;
+	int i;
 
 	for (i = 0; i < len; i++)
 		p[i] = LHALF(p[i] << sh) | (p[i + 1] >> (HALF_BITS - sh));
@@ -88,7 +88,7 @@ __qdivrem(uq, vq, arq)
 {
 	union uu tmp;
 	digit *u, *v, *q;
-	register digit v1, v2;
+	digit v1, v2;
 	u_long qhat, rhat, t;
 	int m, n, d, j, i;
 	digit uspace[5], vspace[5], qspace[5];
@@ -198,7 +198,7 @@ __qdivrem(uq, vq, arq)
 	v1 = v[1];	/* for D3 -- note that v[1..n] are constant */
 	v2 = v[2];	/* for D3 */
 	do {
-		register digit uj0, uj1, uj2;
+		digit uj0, uj1, uj2;
 
 		/*
 		 * D3: Calculate qhat (\^q, in TeX notation).
diff --git a/lib/libstand/random.c b/lib/libstand/random.c
index 994d3076e3aa..441c4ae6d6ac 100644
--- a/lib/libstand/random.c
+++ b/lib/libstand/random.c
@@ -55,7 +55,7 @@ srandom(seed)
 u_long
 random()
 {
-	register long x, hi, lo, t;
+	long x, hi, lo, t;
 
 	/*
 	 * Compute x[n + 1] = (7^5 * x[n]) mod (2^31 - 1).
diff --git a/lib/libstand/rarp.c b/lib/libstand/rarp.c
index b9b317fec2a7..eed1ed0594d6 100644
--- a/lib/libstand/rarp.c
+++ b/lib/libstand/rarp.c
@@ -68,7 +68,7 @@ rarp_getipaddress(sock)
 	int sock;
 {
 	struct iodesc *d;
-	register struct ether_arp *ap;
+	struct ether_arp *ap;
 	struct {
 		u_char header[ETHER_SIZE];
 		struct {
@@ -139,9 +139,9 @@ rarp_getipaddress(sock)
  */
 static ssize_t
 rarpsend(d, pkt, len)
-	register struct iodesc *d;
-	register void *pkt;
-	register size_t len;
+	struct iodesc *d;
+	void *pkt;
+	size_t len;
 {
 
 #ifdef RARP_DEBUG
@@ -158,13 +158,13 @@ rarpsend(d, pkt, len)
  */
 static ssize_t
 rarprecv(d, pkt, len, tleft)
-	register struct iodesc *d;
-	register void *pkt;
-	register size_t len;
+	struct iodesc *d;
+	void *pkt;
+	size_t len;
 	time_t tleft;
 {
-	register ssize_t n;
-	register struct ether_arp *ap;
+	ssize_t n;
+	struct ether_arp *ap;
 	u_int16_t etype;	/* host order */
 
 #ifdef RARP_DEBUG
diff --git a/lib/libstand/rpc.c b/lib/libstand/rpc.c
index 17f4362fc530..bddb49d51781 100644
--- a/lib/libstand/rpc.c
+++ b/lib/libstand/rpc.c
@@ -113,14 +113,14 @@ int rpc_port = 0x400;	/* predecrement */
  */
 ssize_t
 rpc_call(d, prog, vers, proc, sdata, slen, rdata, rlen)
-	register struct iodesc *d;
-	register n_long prog, vers, proc;
-	register void *sdata;
-	register size_t slen;
-	register void *rdata;
-	register size_t rlen;
+	struct iodesc *d;
+	n_long prog, vers, proc;
+	void *sdata;
+	size_t slen;
+	void *rdata;
+	size_t rlen;
 {
-	register ssize_t cc;
+	ssize_t cc;
 	struct auth_info *auth;
 	struct rpc_call *call;
 	struct rpc_reply *reply;
@@ -237,12 +237,12 @@ rpc_call(d, prog, vers, proc, sdata, slen, rdata, rlen)
  */
 static ssize_t
 recvrpc(d, pkt, len, tleft)
-	register struct iodesc *d;
-	register void *pkt;
-	register size_t len;
+	struct iodesc *d;
+	void *pkt;
+	size_t len;
 	time_t tleft;
 {
-	register struct rpc_reply *reply;
+	struct rpc_reply *reply;
 	ssize_t	n;
 	int	x;
 
@@ -382,7 +382,7 @@ rpc_pmap_putcache(addr, prog, vers, port)
  */
 int
 rpc_getport(d, prog, vers)
-	register struct iodesc *d;
+	struct iodesc *d;
 	n_long prog;	/* host order */
 	n_long vers;	/* host order */
 {
diff --git a/lib/libstand/strcasecmp.c b/lib/libstand/strcasecmp.c
index 05b6c369004c..9eb8350938c3 100644
--- a/lib/libstand/strcasecmp.c
+++ b/lib/libstand/strcasecmp.c
@@ -46,7 +46,7 @@ int
 strcasecmp(s1, s2)
 	const char *s1, *s2;
 {
-	register const u_char
+	const u_char
 			*us1 = (const u_char *)s1,
 			*us2 = (const u_char *)s2;
 
@@ -59,10 +59,10 @@ strcasecmp(s1, s2)
 int
 strncasecmp(s1, s2, n)
 	const char *s1, *s2;
-	register size_t n;
+	size_t n;
 {
 	if (n != 0) {
-		register const u_char
+		const u_char
 				*us1 = (const u_char *)s1,
 				*us2 = (const u_char *)s2;
 
diff --git a/lib/libstand/strtol.c b/lib/libstand/strtol.c
index 30c5cbbf1026..4844a1a0972f 100644
--- a/lib/libstand/strtol.c
+++ b/lib/libstand/strtol.c
@@ -51,13 +51,13 @@ long
 strtol(nptr, endptr, base)
 	const char *nptr;
 	char **endptr;
-	register int base;
+	int base;
 {
-	register const char *s;
-	register unsigned long acc;
-	register unsigned char c;
-	register unsigned long cutoff;
-	register int neg = 0, any, cutlim;
+	const char *s;
+	unsigned long acc;
+	unsigned char c;
+	unsigned long cutoff;
+	int neg = 0, any, cutlim;
 
 	/* Be sensible about NULL strings */
 	if (nptr == NULL)
diff --git a/lib/libstand/tftp.c b/lib/libstand/tftp.c
index e0190105dbbf..739015d38aef 100644
--- a/lib/libstand/tftp.c
+++ b/lib/libstand/tftp.c
@@ -111,9 +111,9 @@ static int tftperrors[8] = {
 
 static ssize_t 
 recvtftp(d, pkt, len, tleft)
-	register struct iodesc *d;
-	register void  *pkt;
-	register ssize_t len;
+	struct iodesc *d;
+	void  *pkt;
+	ssize_t len;
 	time_t          tleft;
 {
 	struct tftphdr *t;
@@ -140,7 +140,7 @@ recvtftp(d, pkt, len, tleft)
 			/*
 			 * First data packet from new port.
 			 */
-			register struct udphdr *uh;
+			struct udphdr *uh;
 			uh = (struct udphdr *) pkt - 1;
 			d->destport = uh->uh_sport;
 		} /* else check uh_sport has not changed??? */
diff --git a/lib/libstand/udp.c b/lib/libstand/udp.c
index 4dbd7957bd87..49539329b6ca 100644
--- a/lib/libstand/udp.c
+++ b/lib/libstand/udp.c
@@ -63,14 +63,14 @@ __FBSDID("$FreeBSD$");
 /* Caller must leave room for ethernet, ip and udp headers in front!! */
 ssize_t
 sendudp(d, pkt, len)
-	register struct iodesc *d;
-	register void *pkt;
-	register size_t len;
+	struct iodesc *d;
+	void *pkt;
+	size_t len;
 {
-	register ssize_t cc;
-	register struct ip *ip;
-	register struct udphdr *uh;
-	register u_char *ea;
+	ssize_t cc;
+	struct ip *ip;
+	struct udphdr *uh;
+	u_char *ea;
 
 #ifdef NET_DEBUG
  	if (debug) {
@@ -105,7 +105,7 @@ sendudp(d, pkt, len)
 
 #ifndef UDP_NO_CKSUM
 	{
-		register struct udpiphdr *ui;
+		struct udpiphdr *ui;
 		struct ip tip;
 
 		/* Calculate checksum (must save and restore ip header) */
@@ -138,15 +138,15 @@ sendudp(d, pkt, len)
  */
 ssize_t
 readudp(d, pkt, len, tleft)
-	register struct iodesc *d;
-	register void *pkt;
-	register size_t len;
+	struct iodesc *d;
+	void *pkt;
+	size_t len;
 	time_t tleft;
 {
-	register ssize_t n;
-	register size_t hlen;
-	register struct ip *ip;
-	register struct udphdr *uh;
+	ssize_t n;
+	size_t hlen;
+	struct ip *ip;
+	struct udphdr *uh;
 	u_int16_t etype;	/* host order */
 
 #ifdef NET_DEBUG
@@ -235,7 +235,7 @@ readudp(d, pkt, len, tleft)
 
 #ifndef UDP_NO_CKSUM
 	if (uh->uh_sum) {
-		register struct udpiphdr *ui;
+		struct udpiphdr *ui;
 		struct ip tip;
 
 		n = ntohs(uh->uh_ulen) + sizeof(*ip);
diff --git a/lib/libstand/ufs.c b/lib/libstand/ufs.c
index 35af957dbc6e..099db2297dec 100644
--- a/lib/libstand/ufs.c
+++ b/lib/libstand/ufs.c
@@ -137,8 +137,8 @@ read_inode(inumber, f)
 	ino_t inumber;
 	struct open_file *f;
 {
-	register struct file *fp = (struct file *)f->f_fsdata;
-	register struct fs *fs = fp->f_fs;
+	struct file *fp = (struct file *)f->f_fsdata;
+	struct fs *fs = fp->f_fs;
 	char *buf;
 	size_t rsize;
 	int rc;
@@ -162,7 +162,7 @@ read_inode(inumber, f)
 	}
 
 	{
-		register struct dinode *dp;
+		struct dinode *dp;
 
 		dp = (struct dinode *)buf;
 		fp->f_di = dp[ino_to_fsbo(fs, inumber)];
@@ -172,7 +172,7 @@ read_inode(inumber, f)
 	 * Clear out the old buffers
 	 */
 	{
-		register int level;
+		int level;
 
 		for (level = 0; level < NIADDR; level++)
 			fp->f_blkno[level] = -1;
@@ -193,8 +193,8 @@ block_map(f, file_block, disk_block_p)
 	daddr_t file_block;
 	daddr_t *disk_block_p;	/* out */
 {
-	register struct file *fp = (struct file *)f->f_fsdata;
-	register struct fs *fs = fp->f_fs;
+	struct file *fp = (struct file *)f->f_fsdata;
+	struct fs *fs = fp->f_fs;
 	int level;
 	int idx;
 	daddr_t ind_block_num;
@@ -298,10 +298,10 @@ buf_write_file(f, buf_p, size_p)
 	char *buf_p;
 	size_t *size_p;		/* out */
 {
-	register struct file *fp = (struct file *)f->f_fsdata;
-	register struct fs *fs = fp->f_fs;
+	struct file *fp = (struct file *)f->f_fsdata;
+	struct fs *fs = fp->f_fs;
 	long off;
-	register daddr_t file_block;
+	daddr_t file_block;
 	daddr_t	disk_block;
 	size_t block_size;
 	int rc;
@@ -375,10 +375,10 @@ buf_read_file(f, buf_p, size_p)
 	char **buf_p;		/* out */
 	size_t *size_p;		/* out */
 {
-	register struct file *fp = (struct file *)f->f_fsdata;
-	register struct fs *fs = fp->f_fs;
+	struct file *fp = (struct file *)f->f_fsdata;
+	struct fs *fs = fp->f_fs;
 	long off;
-	register daddr_t file_block;
+	daddr_t file_block;
 	daddr_t	disk_block;
 	size_t block_size;
 	int rc;
@@ -437,8 +437,8 @@ search_directory(name, f, inumber_p)
 	struct open_file *f;
 	ino_t *inumber_p;		/* out */
 {
-	register struct file *fp = (struct file *)f->f_fsdata;
-	register struct direct *dp;
+	struct file *fp = (struct file *)f->f_fsdata;
+	struct direct *dp;
 	struct direct *edp;
 	char *buf;
 	size_t buf_size;
@@ -486,8 +486,8 @@ ufs_open(upath, f)
 	const char *upath;
 	struct open_file *f;
 {
-	register char *cp, *ncp;
-	register int c;
+	char *cp, *ncp;
+	int c;
 	ino_t inumber, parent_inumber;
 	struct file *fp;
 	struct fs *fs;
@@ -525,8 +525,8 @@ ufs_open(upath, f)
 	 * Calculate indirect block levels.
 	 */
 	{
-		register int mult;
-		register int level;
+		int mult;
+		int level;
 
 		mult = 1;
 		for (level = 0; level < NIADDR; level++) {
@@ -566,7 +566,7 @@ ufs_open(upath, f)
 		 * Get next component of path name.
 		 */
 		{
-			register int len = 0;
+			int len = 0;
 
 			ncp = cp;
 			while ((c = *cp) != '\0' && c != '/') {
@@ -622,7 +622,7 @@ ufs_open(upath, f)
 				 */
 				size_t buf_size;
 				daddr_t	disk_block;
-				register struct fs *fs = fp->f_fs;
+				struct fs *fs = fp->f_fs;
 
 				if (!buf)
 					buf = malloc(fs->fs_bsize);
@@ -677,7 +677,7 @@ static int
 ufs_close(f)
 	struct open_file *f;
 {
-	register struct file *fp = (struct file *)f->f_fsdata;
+	struct file *fp = (struct file *)f->f_fsdata;
 	int level;
 
 	f->f_fsdata = (void *)0;
@@ -706,12 +706,12 @@ ufs_read(f, start, size, resid)
 	size_t size;
 	size_t *resid;	/* out */
 {
-	register struct file *fp = (struct file *)f->f_fsdata;
-	register size_t csize;
+	struct file *fp = (struct file *)f->f_fsdata;
+	size_t csize;
 	char *buf;
 	size_t buf_size;
 	int rc = 0;
-	register char *addr = start;
+	char *addr = start;
 
 	while (size != 0) {
 		if (fp->f_seekp >= fp->f_di.di_size)
@@ -748,10 +748,10 @@ ufs_write(f, start, size, resid)
 	size_t size;
 	size_t *resid;	/* out */
 {
-	register struct file *fp = (struct file *)f->f_fsdata;
+	struct file *fp = (struct file *)f->f_fsdata;
 	size_t csize;
 	int rc = 0;
-	register char *addr = start;
+	char *addr = start;
 
 	csize = size;
 	while ((size != 0) && (csize != 0)) {
@@ -779,7 +779,7 @@ ufs_seek(f, offset, where)
 	off_t offset;
 	int where;
 {
-	register struct file *fp = (struct file *)f->f_fsdata;
+	struct file *fp = (struct file *)f->f_fsdata;
 
 	switch (where) {
 	case SEEK_SET:
@@ -802,7 +802,7 @@ ufs_stat(f, sb)
 	struct open_file *f;
 	struct stat *sb;
 {
-	register struct file *fp = (struct file *)f->f_fsdata;
+	struct file *fp = (struct file *)f->f_fsdata;
 
 	/* only important stuff */
 	sb->st_mode = fp->f_di.di_mode;
diff --git a/lib/libstand/write.c b/lib/libstand/write.c
index ea9d491afa9c..8f0fa9712ad4 100644
--- a/lib/libstand/write.c
+++ b/lib/libstand/write.c
@@ -76,7 +76,7 @@ write(fd, dest, bcount)
 	void *dest;
 	size_t bcount;
 {
-	register struct open_file *f = &files[fd];
+	struct open_file *f = &files[fd];
 	size_t resid;
 
 	if ((unsigned)fd >= SOPEN_MAX || !(f->f_flags & F_WRITE)) {
diff --git a/lib/libutil/login.c b/lib/libutil/login.c
index 894d555411b4..cbb60139f462 100644
--- a/lib/libutil/login.c
+++ b/lib/libutil/login.c
@@ -53,7 +53,7 @@ void
 login(ut)
 	struct utmp *ut;
 {
-	register int fd;
+	int fd;
 	int tty;
 
 	tty = ttyslot();
diff --git a/lib/libutil/pty.c b/lib/libutil/pty.c
index a82ef077aa7d..088ea8db0609 100644
--- a/lib/libutil/pty.c
+++ b/lib/libutil/pty.c
@@ -61,8 +61,8 @@ openpty(amaster, aslave, name, termp, winp)
 	struct winsize *winp;
 {
 	char line[] = "/dev/ptyXX";
-	register const char *cp1, *cp2;
-	register int master, slave, ttygid;
+	const char *cp1, *cp2;
+	int master, slave, ttygid;
 	struct group *gr;
 
 	if ((gr = getgrnam("tty")) != NULL)
diff --git a/lib/ncurses/ncurses/termcap.c b/lib/ncurses/ncurses/termcap.c
index fc2153099284..0d98d7e78624 100644
--- a/lib/ncurses/ncurses/termcap.c
+++ b/lib/ncurses/ncurses/termcap.c
@@ -103,8 +103,8 @@ int
 _nc_read_termcap_entry(const char *const name, TERMTYPE *const tp)
 {
 	ENTRY	*ep;
-	register char *p;
-	register char *cp;
+	char *p;
+	char *cp;
 	char  *dummy;
 	char **fname;
 	char  *home;