Lots of mechanical cleanup.

Makefile

@@ -35,11 +35,9 @@ BUILDDIR ?= $(ACK_TEMP_DIR)/ack-build
 CFLAGS ?= -g \
 	-Werror=return-type \
 	-Werror=implicit-function-declaration \
-	-Werror=strict-prototypes \
-	-fsanitize=unreachable
+	-Werror=strict-prototypes
 
-LDFLAGS ?= -g \
-	-fsanitize=unreachable
+LDFLAGS ?= -g
 
 # Various commands.
 

doc/em/even.c

@@ -1,5 +1,5 @@
 main() {
-	register int l,j ;
+	int l,j ;
 
 	for ( j=0 ; (l=getchar()) != -1 ; j++ ) {
 		if ( j%16 == 15 ) printf("%3d\n",l&0377 ) ;

doc/em/int/emdmp.c

@@ -71,7 +71,7 @@ long getaddr();
 
 main(argc,argv) char **argv;
 {
-	register i ;
+	i ;
 	long line,fileaddr;
 	char tok ;
 
@@ -168,7 +168,7 @@ int read2() {
 
 long readaddr() {
 	long res ;
-	register int i ;
+	int i ;
 
 	res=0 ;
 	for (i=0 ; i<asize ; i++ ) res |= getb()<<(8*i) ;
@@ -177,7 +177,7 @@ long readaddr() {
 
 long readword() {
 	long res ;
-	register int i ;
+	int i ;
 
 	res=0 ;
 	for (i=0 ; i<wsize ; i++ ) res |= getb()<<(8*i) ;

doc/em/int/mktables.c

@@ -80,8 +80,8 @@ char *ident() {
 	*/
 
 	static char array[200] ;
-	register int c ;
-	register char *cc ;
+	int c ;
+	char *cc ;
 
 	do {
 		c=readchar() ;

doc/em/mkdispatch.c

@@ -48,7 +48,7 @@ void ckop(int, int, int, int);
 int readchar(void);
 void pushback(int);
 void writeout(void);
-void prx(register int, int, int);
+void prx(int, int, int);
 void readin(void);
 int getmnem(char *);
 void error(char *str, ...);
@@ -90,7 +90,7 @@ int main(int argc, char **argv)
 
 void readin(void)
 {
-	register struct opform *nextform;
+	struct opform *nextform;
 	char *firstid;
 
 	for (nextform = intable; !feof(stdin) && nextform < &intable[NOTAB];)
@@ -131,8 +131,8 @@ char *ident(void)
 	 */
 
 	static char array[200];
-	register int c;
-	register char *cc;
+	int c;
+	char *cc;
 
 	do
 	{
@@ -346,8 +346,8 @@ char negc[NMNEM], zc[NMNEM], posc[NMNEM], lnegc[NMNEM], lposc[NMNEM];
 
 void checkall(void)
 {
-	register int i, flag;
-	register struct opform *next;
+	int i, flag;
+	struct opform *next;
 	int opc, low;
 
 	for (i = 0; i < NMNEM; i++)
@@ -571,7 +571,7 @@ void pushback(int c)
 
 void writeout(void)
 {
-	register int i;
+	int i;
 
 	printf("DISPATCH1");
 	for (i = 0; i < 256;)
@@ -616,7 +616,7 @@ void writeout(void)
 	putchar('\n');
 }
 
-void prx(register int flg, int low, int opc)
+void prx(int flg, int low, int opc)
 {
 	int arg = opc - low;
 

emtest/select.c

@@ -46,8 +46,8 @@ stop() {
 }
 
 main(argc,argv) char **argv; {
-	register *p;
-	register char *s;
+	int *p;
+	char *s;
 
 	prog = *argv++; --argc;
 	mktemp(name1);
@@ -109,7 +109,7 @@ main(argc,argv) char **argv; {
 }
 
 select() {
-	register FILE *f;
+	FILE *f;
 	int i;
 
 	if (sscanf(line, "TEST %d", &i) != 1)
@@ -212,7 +212,7 @@ copy(s) char *s; {
 }
 
 getline() {
-	register len;
+	len;
 
 	if (fgets(line, LINSIZ, stdin) == NULL)
 		return(0);
@@ -243,10 +243,10 @@ usage() {
 
 char *
 to3dig(i)
-	register int i;
+	int i;
 {
 	static char buf[4];
-	register char *s = buf;
+	char *s = buf;
 
 	*s++ = (i % 1000) / 100 + '0';
 	*s++ = (i % 100) / 10 + '0';

examples/startrek.c

@@ -546,7 +546,7 @@ new_quadrant(void)
 void
 course_control(void)
 {
-  register i;
+  int i;
   /* @@@ int c2, c3, q4, q5; */
   int q4, q5;
   string sTemp;
@@ -826,7 +826,7 @@ maneuver_energy(void)
 void
 short_range_scan(void)
 {
-  register i, j;
+  int i, j;
 
   strcpy(sC, "GREEN");
 
@@ -898,7 +898,7 @@ short_range_scan(void)
 void
 long_range_scan(void)
 {
-  register i, j;
+  int i, j;
 
   if (d[3] < 0.0)
     {
@@ -928,7 +928,7 @@ long_range_scan(void)
 void
 phaser_control(void)
 {
-  register i;
+  int i;
   int iEnergy;
   int h1, h;
   string sTemp;
@@ -1183,7 +1183,7 @@ damage_control(void)
 { 
   int a1;
   double d3 = 0.0;
-  register i;
+  int i;
 
   if (d[6] < 0.0)
     {

fast/driver/driver.c

@@ -301,8 +301,8 @@ static char *expand_string(char *s, struct system_information *);
 static void error(char *, char *, char *);
 static void warning(char *, char *, char *);
 static void panic(char *);
-static void append(register struct arglist *, char *);
-static void expand(register struct arglist *, struct system_information *);
+static void append(struct arglist *, char *);
+static void expand(struct arglist *, struct system_information *);
 static void concat(struct arglist *, struct arglist *);
 static int runvec(struct arglist *, char *);
 static int needsprep(char *);
@@ -549,7 +549,7 @@ int main(int argc, char *argv[])
 	int libs_count;
 	char *ext;
 	FILE* fd;
-	register struct arglist *call = &CALL_VEC;
+	struct arglist *call = &CALL_VEC;
 	char tmpbuffer[256];
 	char *file;
 	char *ldfile;
@@ -763,7 +763,7 @@ int main(int argc, char *argv[])
 	/* For argument file */
 	while (count-- > 0)
 	{
-		register char *f;
+		char *f;
 		sys_basename(file = *argvec++, BASE);
 
 		ext = extension(file);
@@ -977,8 +977,8 @@ static char * alloc(unsigned int u)
 static char * expand_string(char *s, struct system_information *sysinfo)
 {
 	char buf[1024];
-	register char *p = s;
-	register char *q = &buf[0];
+	char *p = s;
+	char *q = &buf[0];
 	int expanded = 0;
 
 	if (!p)
@@ -1024,7 +1024,7 @@ static char * expand_string(char *s, struct system_information *sysinfo)
 	return strcpy(p, buf);
 }
 
-static void append(register struct arglist *al, char *arg)
+static void append(struct arglist *al, char *arg)
 {
 	if (!arg || !*arg)
 		return;
@@ -1033,10 +1033,10 @@ static void append(register struct arglist *al, char *arg)
 	al->al_argv[(al->al_argc)++] = arg;
 }
 
-static void expand(register struct arglist *al, struct system_information *sysinfo)
+static void expand(struct arglist *al, struct system_information *sysinfo)
 {
-	register int i = al->al_argc;
-	register char **p = &(al->al_argv[0]);
+	int i = al->al_argc;
+	char **p = &(al->al_argv[0]);
 
 	while (i-- > 0)
 	{
@@ -1047,9 +1047,9 @@ static void expand(register struct arglist *al, struct system_information *sysin
 
 static void concat(struct arglist *al1, struct arglist *al2)
 {
-	register int i = al2->al_argc;
-	register char **p = &(al1->al_argv[al1->al_argc]);
-	register char **q = &(al2->al_argv[0]);
+	int i = al2->al_argc;
+	char **p = &(al1->al_argv[al1->al_argc]);
+	char **q = &(al2->al_argv[0]);
 
 	if ((al1->al_argc += i) >= MAXARGC)
 		panic("argument list overflow");
@@ -1065,8 +1065,8 @@ char *mkstr(char *dst, ...)
 
 	va_start(ap, dst);
 	{
-		register char *p;
-		register char *q;
+		char *p;
+		char *q;
 
 		q = dst;
 		p = va_arg(ap, char *);
@@ -1086,7 +1086,7 @@ char *mkstr(char *dst, ...)
 
 static char *extension(char *fn)
 {
-	register char *c = fn;
+	char *c = fn;
 
 	while (*c++)
 		;