--- ray/src/px/pfilt.c	2003/06/05 19:29:34	2.23
+++ ray/src/px/pfilt.c	2004/01/02 12:47:01	2.28
@@ -1,5 +1,5 @@
 #ifndef lint
-static const char RCSid[] = "$Id: pfilt.c,v 2.23 2003/06/05 19:29:34 schorsch Exp $";
+static const char RCSid[] = "$Id: pfilt.c,v 2.28 2004/01/02 12:47:01 schorsch Exp $";
 #endif
 /*
  *  pfilt.c - program to post-process picture file.
@@ -8,8 +8,12 @@ static const char RCSid[] = "$Id: pfilt.c,v 2.23 2003/
  *     6/23/93	Added additional buffers for value spreading
  */
 
+#include  "copyright.h"
+
 #include  <signal.h>
+#include  <string.h>
 
+#include  "platform.h"
 #include  "standard.h"
 #include  "color.h"
 #include  "view.h"
@@ -79,12 +83,13 @@ int  orad = 0;			/* output window radius */
 
 char  *progname;
 
+static gethfunc headline;
 
+
 main(argc, argv)
 int  argc;
 char  **argv;
 {
-	extern int  headline();
 	FILE  *fin;
 	float  *lampcolor;
 	char  *lamptype = NULL;
@@ -97,10 +102,14 @@ char  **argv;
 	SET_FILE_BINARY(stdout);
 	if (signal(SIGINT, quit) == SIG_IGN)
 		signal(SIGINT, SIG_IGN);
+#ifdef SIGHUP
 	if (signal(SIGHUP, quit) == SIG_IGN)
 		signal(SIGHUP, SIG_IGN);
+#endif
 	signal(SIGTERM, quit);
+#ifdef SIGPIPE
 	signal(SIGPIPE, quit);
+#endif
 #ifdef	SIGXCPU
 	signal(SIGXCPU, quit);
 	signal(SIGXFSZ, quit);
@@ -320,9 +329,11 @@ COLOR  clr;
 double	(*ourbright)() = rgb_bright;
 
 
-int
-headline(s)				/* process line from header */
-char  *s;
+static int
+headline(				/* process line from header */
+	char	*s,
+	void	*p
+)
 {
 	char  fmt[32];
 
@@ -482,12 +493,12 @@ scan2init()			/* prepare scanline arrays */
 	if (obarsize > 0) {
 		scoutbar = (COLOR **)malloc(obarsize*sizeof(COLOR *));
 		greybar = (float **)malloc(obarsize*sizeof(float *));
-		if (scoutbar == NULL | greybar == NULL)
+		if ((scoutbar == NULL) | (greybar == NULL))
 			goto memerr;
 		for (i = 0; i < obarsize; i++) {
 			scoutbar[i] = (COLOR *)malloc(ncols*sizeof(COLOR));
 			greybar[i] = (float *)malloc(ncols*sizeof(float));
-			if (scoutbar[i] == NULL | greybar[i] == NULL)
+			if ((scoutbar[i] == NULL) | (greybar[i] == NULL))
 				goto memerr;
 		}
 	} else {
@@ -536,7 +547,7 @@ int  r;
 			greybar[nextrow%obarsize][c] = (*ourbright)(ctmp);
 		}
 					/* and zero output scanline */
-		bzero((char *)scoutbar[nextrow%obarsize], ncols*sizeof(COLOR));
+		memset((char *)scoutbar[nextrow%obarsize], '\0', ncols*sizeof(COLOR));
 		nextrow++;
 	}
 					/* point to top scanline for output */