--- ray/src/gen/mkillum.c	2012/10/13 20:15:43	2.39
+++ ray/src/gen/mkillum.c	2016/09/15 22:34:41	2.42
@@ -1,5 +1,5 @@
 #ifndef lint
-static const char RCSid[] = "$Id: mkillum.c,v 2.39 2012/10/13 20:15:43 greg Exp $";
+static const char RCSid[] = "$Id: mkillum.c,v 2.42 2016/09/15 22:34:41 greg Exp $";
 #endif
 /*
  * Make illum sources for optimizing rendering process
@@ -8,7 +8,7 @@ static const char RCSid[] = "$Id: mkillum.c,v 2.39 201
 #include  <signal.h>
 #include  <ctype.h>
 
-#include  "rtprocess.h"	/* win_popen() */
+#include  "paths.h"		/* win_popen() */
 #include  "mkillum.h"
 
 				/* default parameters */
@@ -24,7 +24,6 @@ static const char RCSid[] = "$Id: mkillum.c,v 2.39 201
 
 struct illum_args  thisillum = {	/* our illum and default values */
 		0,
-		0.,
 		DFLMAT,
 		DFLDAT,
 		0,
@@ -46,10 +45,10 @@ int	doneheader = 0;		/* printed header yet? */
 int	warnings = 1;		/* print warnings? */
 
 void init(char *octnm, int np);
-void filter(register FILE	*infp, char	*name);
+void filter(FILE	*infp, char	*name);
 void xoptions(char	*s, char	*nm);
 void printopts(void);
-void printhead(register int  ac, register char  **av);
+void printhead(int  ac, char  **av);
 void xobject(FILE  *fp, char  *nm);
 
 
@@ -62,7 +61,7 @@ main(		/* compute illum distributions using rtrace */
 	int	nprocs = 1;
 	FILE	*fp;
 	int	rval;
-	register int	i;
+	int	i;
 				/* set global arguments */
 	gargv = argv;
 	progname = gargv[0];
@@ -149,7 +148,7 @@ init(char *octnm, int np)		/* start rendering process(
 
 void
 eputs(				/* put string to stderr */
-	register char  *s
+	char  *s
 )
 {
 	static int  midline = 0;
@@ -185,13 +184,13 @@ int	ec;
 
 void
 filter(		/* process stream */
-	register FILE	*infp,
+	FILE	*infp,
 	char	*name
 )
 {
 	char	buf[512];
 	FILE	*pfp;
-	register int	c;
+	int	c;
 
 	while ((c = getc(infp)) != EOF) {
 		if (isspace(c))
@@ -223,11 +222,10 @@ xoptions(			/* process options in string s */
 	char	*nm
 )
 {
-	extern FILE	*freopen();
 	char	buf[64];
 	int	negax;
 	int	nerrs = 0;
-	register char	*cp;
+	char	*cp;
 
 	if (strncmp(s, "#@mkillum", 9) || !isspace(s[9])) {
 		fputs(s, stdout);		/* not for us */
@@ -360,16 +358,6 @@ xoptions(			/* process options in string s */
 			}
 			doneheader = 0;
 			continue;
-		case 't':			/* object thickness */
-			if (*++cp != '=')
-				break;
-			if (!isfltd(++cp, " \t\n\r"))
-				break;
-			thisillum.thick = atof(cp);
-			if (thisillum.thick < .0)
-				thisillum.thick = .0;
-			cp = sskip(cp);
-			continue;
 		case '!':			/* processed file! */
 			sprintf(errmsg, "(%s): already processed!", nm);
 			error(WARNING, errmsg);
@@ -415,14 +403,13 @@ printopts(void)			/* print out option default values *
 	printf("d=%d\t\t\t\t# density of directions\n", thisillum.sampdens);
 	printf("s=%d\t\t\t\t# samples per direction\n", thisillum.nsamps);
 	printf("b=%f\t\t\t# minimum average brightness\n", thisillum.minbrt);
-	printf("t=%f\t\t\t# object thickness\n", thisillum.thick);
 }
 
 
 void
 printhead(			/* print out header */
-	register int  ac,
-	register char  **av
+	int  ac,
+	char  **av
 )
 {
 	putchar('#');