tr2post and aux/download; download is a shell script in $PLAN9/bin.

src/cmd/postscript/common/common.c

@@ -209,7 +209,7 @@ endpage(void) {
 int
 cat(char *filename) {
 	Biobuf *bfile;
-	Biobufhdr *Bfile;
+	Biobuf *Bfile;
 	int n;
 	static char buf[Bsize];
 

src/cmd/postscript/common/common.h

@@ -40,6 +40,8 @@ BOOLEAN isinstring(void);
 void startpage(void);
 void endpage(void);
 int cat(char *);
-int Bgetfield(Biobufhdr *, int, void *, int);
+int Bgetfield(Biobuf*, int, void *, int);
 void *galloc(void *, int, char *);
 void pagelist(char *);
+
+int safe_tmpnam(char*);

src/cmd/postscript/common/ext.h

@@ -27,10 +27,9 @@ extern int	writing;		/* and output encoding */
 extern char	*optarg;		/* for getopt() */
 extern int	optind;
 
-extern void	interrupt();
-extern void	error();
-extern int	cat();
-extern void	concat();
+extern void	interrupt(int);
+extern int	cat(char*);
+extern void	concat(double*);
 
 /* 
  * extern char	*tempnam(char*,char*);

src/cmd/postscript/common/misc.c

@@ -18,6 +18,10 @@
 int	nolist = 0;			/* number of specified ranges */
 int	olist[50];			/* processing range pairs */
 
+int str_convert(char **str, int err);
+void error(int kind, char *mesg, unsigned int a1, unsigned int a2, unsigned int a3);
+int cat(char *file);
+
 /*****************************************************************************/
 extern	int	str_convert();
 
@@ -44,7 +48,7 @@ out_list(str)
 	    stop = str_convert(&str, 9999);
 
 	if ( start > stop )
-	    error(FATAL, "illegal range %d-%d", start, stop);
+	    error(FATAL, "illegal range %d-%d", start, stop, 0);
 
 	olist[nolist++] = start;
 	olist[nolist++] = stop;

src/cmd/postscript/common/mkfile

@@ -2,7 +2,7 @@
 
 <../config
 
-LIB=com.a
+LIB=libcom.a
 OFILES=bbox.$O\
 	glob.$O\
 	misc.$O\

src/cmd/postscript/common/request.c

@@ -24,6 +24,9 @@ Request	request[MAXREQUEST];		/* next page or global request */
 int	nextreq = 0;			/* goes in request[nextreq] */
 char	*requestfile = REQUESTFILE;	/* default lookup file */
 
+void dumprequest(char *want, char *file, FILE *fp_out);
+extern void error(int errtype, char *fmt, ...);
+
 /*****************************************************************************/
 
 void

src/cmd/postscript/common/tempnam.c

@@ -31,7 +31,7 @@ mkfname(char *tmpdir, char *prefix)
 	return fname;
 }
 
-extern int mkstemp();
+extern	int	mkstemp(char*);
 
 char*
 safe_tempnam(char *tmpdir, char *prefix)