--- ray/src/util/scanner.c	1991/03/12 13:05:12	1.1
+++ ray/src/util/scanner.c	2003/06/26 00:58:11	1.4
@@ -1,21 +1,20 @@
-/* Copyright (c) 1991 Regents of the University of California */
-
 #ifndef lint
-static char SCCSid[] = "$SunId$ LBL";
+static const char	RCSid[] = "$Id: scanner.c,v 1.4 2003/06/26 00:58:11 schorsch Exp $";
 #endif
-
 /*
  *  scanner.c - program to simulate bi-directional scanner.
  *
  *     6/10/86
  */
 
-#include  "stdio.h"
+#include  <stdio.h>
 
-#include  "ctype.h"
+#include  <stdlib.h>
 
-#include  "signal.h"
+#include  <ctype.h>
 
+#include  <signal.h>
+
 #include  "random.h"
 
 
@@ -42,21 +41,24 @@ double  targeth = 3.0;			/* target height (inches) */
 int  xres = 16;				/* x sample resolution */
 int  yres = 16;				/* y sample resolution */
 
+static void  quit(int code);
 
 main(argc, argv)
 int  argc;
 char  *argv[];
 {
-	double  atof();
 	char  *strcat(), *mktemp();
-	int  quit();
 	int  i;
 
+#ifdef SIGHUP
 	signal(SIGHUP, quit);
+#endif
 	signal(SIGINT, quit);
 	signal(SIGTERM, quit);
+#ifdef SIGXCPU
 	signal(SIGXCPU, SIG_IGN);
 	signal(SIGXFSZ, SIG_IGN);
+#endif
 
 	for (i = 1; i < argc && argv[i][0] == '-'; i++)
 		switch (argv[i][1]) {
@@ -150,6 +152,7 @@ badopt:
 }
 
 
+void
 quit(code)			/* unlink temp files and exit */
 int  code;
 {