Tweak to make troff compile silently.

src/cmd/troff/ext.h

diff --git a/src/cmd/troff/ext.h b/src/cmd/troff/ext.h
index 5e18756..8df12f2 100644
--- a/src/cmd/troff/ext.h
+++ b/src/cmd/troff/ext.h
@@ -99,6 +99,7 @@
 extern	int	po1;
 extern	int	po;
 extern	int	ppts;
+#define	print	troffprint
 extern	int	print;
 extern	FILE	*ptid;
 extern	int	pto;

src/cmd/troff/fns.h

diff --git a/src/cmd/troff/fns.h b/src/cmd/troff/fns.h
index 087d4c8..922a3a8 100644
--- a/src/cmd/troff/fns.h
+++ b/src/cmd/troff/fns.h
@@ -10,6 +10,7 @@
 int	close(int);
 int	getpid(void);
 #endif
+char	*unsharp(char*);
 
 /*
  * c1.c

src/cmd/troff/mbwc.c

diff --git a/src/cmd/troff/mbwc.c b/src/cmd/troff/mbwc.c
index 8bc2e94..e523489 100644
--- a/src/cmd/troff/mbwc.c
+++ b/src/cmd/troff/mbwc.c
@@ -130,7 +130,7 @@
 size_t
 wcstombs(char *s, const wchar_t *pwcs, size_t n)
 {
-	int /*i,*/ d;
+	int d;
 	long c;
 	char *p, *pe;
 	char buf[3];

src/cmd/troff/n1.c

diff --git a/src/cmd/troff/n1.c b/src/cmd/troff/n1.c
index 45e99f3..7fe87b6 100644
--- a/src/cmd/troff/n1.c
+++ b/src/cmd/troff/n1.c
@@ -828,7 +828,7 @@
 	if (p[0] == '-' && p[1] == 0) {
 		ifile = stdin;
 		strcpy(cfname[ifi], "stdin");
-	} else if ((ifile = fopen(p, "r")) == NULL) {
+	} else if ((ifile = fopen(unsharp(p), "r")) == NULL) {
 		ERROR "cannot open file %s", p WARN;
 		nfo -= mflg;
 		done(02);
@@ -936,7 +936,7 @@
 
 	lgf++;
 	nextf[0] = 0;
-	if (skip() || !getname() || (fp = fopen(nextf, "r")) == NULL || ifi >= NSO) {
+	if (skip() || !getname() || (fp = fopen(unsharp(nextf), "r")) == NULL || ifi >= NSO) {
 		ERROR "can't open file %s", nextf WARN;
 		done(02);
 	}
@@ -1005,7 +1005,7 @@
 	nextf[0] = 0;
 	if (!skip() && getname()) {
 		if (strncmp("<<", nextf, 2) != 0) {
-			if ((fd = fopen(nextf, "r")) == NULL) {
+			if ((fd = fopen(unsharp(nextf), "r")) == NULL) {
 				ERROR "can't open file %s", nextf WARN;
 				done(02);
 			}

src/cmd/troff/n10.c

diff --git a/src/cmd/troff/n10.c b/src/cmd/troff/n10.c
index de2461d..9157948 100644
--- a/src/cmd/troff/n10.c
+++ b/src/cmd/troff/n10.c
@@ -185,7 +185,7 @@
 	/* hyphalg = 0;	/* for testing */
 
 	strcat(termtab, devname);
-	if ((fp = fopen(termtab, "r")) == NULL) {
+	if ((fp = fopen(unsharp(termtab), "r")) == NULL) {
 		ERROR "cannot open %s", termtab WARN;
 		exit(-1);
 	}

src/cmd/troff/n5.c

diff --git a/src/cmd/troff/n5.c b/src/cmd/troff/n5.c
index ab5ef2e..2c7d328 100644
--- a/src/cmd/troff/n5.c
+++ b/src/cmd/troff/n5.c
@@ -409,7 +409,7 @@
 		return;
 	}
 	if (fcache[i].fp == NULL) {
-		if( (fcache[i].fp = fopen(nextf, "w")) == NULL) {
+		if( (fcache[i].fp = fopen(unsharp(nextf), "w")) == NULL) {
 			ERROR "fm: cannot open %s", nextf WARN;
 			return;
 		}

src/cmd/troff/n8.c

diff --git a/src/cmd/troff/n8.c b/src/cmd/troff/n8.c
index bace4aa..ded4543 100644
--- a/src/cmd/troff/n8.c
+++ b/src/cmd/troff/n8.c
@@ -461,19 +461,13 @@
 	characters.  sigh.
 */
 
-extern	char	*unsharp(char*);
-
-static	char	*texhyphens;
-
 static int readpats(void)
 {
 	FILE *fp;
 	char buf[200], buf1[200];
 
-	if(texhyphens == 0)
-		texhyphens = unsharp(TEXHYPHENS);
-	if ((fp = fopen(texhyphens, "r")) == NULL
-	 && (fp = fopen(DWBalthyphens, "r")) == NULL) {
+	if ((fp = fopen(unsharp(TEXHYPHENS), "r")) == NULL
+	 && (fp = fopen(unsharp(DWBalthyphens), "r")) == NULL) {
 		ERROR "warning: can't find hyphen.tex" WARN;
 		return 0;
 	}

src/cmd/troff/t11.c

diff --git a/src/cmd/troff/t11.c b/src/cmd/troff/t11.c
index 398d74d..f930d8b 100644
--- a/src/cmd/troff/t11.c
+++ b/src/cmd/troff/t11.c
@@ -24,7 +24,7 @@
 	char cmd[100], s[100];
 	int i, v;
 
-	if ((fin = fopen(name, "r")) == NULL)
+	if ((fin = fopen(unsharp(name), "r")) == NULL)
 		return -1;
 	while (fscanf(fin, "%s", cmd) != EOF) {
 		if (strcmp(cmd, "res") == 0) {
@@ -65,7 +65,7 @@
 	char buf[300], buf2[300];
 	int i, status = -1;
 
-	if ((fp = fopen(name, "r")) == NULL)
+	if ((fp = fopen(unsharp(name), "r")) == NULL)
 		return -1;
 	for (i = 1; i <= 10; i++) {
 		if (fgets(buf, sizeof buf, fp) == NULL)
@@ -100,7 +100,7 @@
 	/* fprintf(stderr, "read font %s onto %d\n", name, pos); */
 	if (checkfont(name) == -1)
 		return -1;
-	if ((fin = fopen(name, "r")) == NULL)
+	if ((fin = fopen(unsharp(name), "r")) == NULL)
 		return -1;
 	for (i = 0; i < ALPHABET; i++)
 		chtemp[i] = chinit;	/* zero out to begin with */