--- ray/src/util/rad.c	2003/07/03 18:03:58	2.67
+++ ray/src/util/rad.c	2004/09/09 20:08:21	2.77
@@ -1,5 +1,5 @@
 #ifndef lint
-static const char	RCSid[] = "$Id: rad.c,v 2.67 2003/07/03 18:03:58 greg Exp $";
+static const char	RCSid[] = "$Id: rad.c,v 2.77 2004/09/09 20:08:21 greg Exp $";
 #endif
 /*
  * Executive program for oconv, rpict and pfilt
@@ -8,12 +8,24 @@ static const char	RCSid[] = "$Id: rad.c,v 2.67 2003/07
 #include "standard.h"
 
 #include <ctype.h>
+#include <time.h>
 
 #include "platform.h"
+#include "rtprocess.h"
 #include "view.h"
 #include "paths.h"
 #include "vars.h"
 
+#ifdef _WIN32
+  #define DELCMD "del"
+  #define RENAMECMD "rename"
+#else
+  #define DELCMD "rm -f"
+  #define RENAMECMD "mv"
+  #include <sys/types.h>
+  #include <sys/wait.h>
+#endif
+
 				/* variables (alphabetical by name) */
 #define AMBFILE		0		/* ambient file name */
 #define DETAIL		1		/* level of scene detail */
@@ -80,7 +92,6 @@ char	overfile[] = NULL_DEVICE;
 char	overfile[] = "overture.unf";
 #endif
 
-extern time_t	time();
 
 time_t	scenedate;		/* date of latest scene or object file */
 time_t	octreedate;		/* date of octree */
@@ -98,7 +109,7 @@ int	silent = 0;		/* do work silently */
 int	touchonly = 0;		/* touch files only */
 int	nprocs = 1;		/* maximum executing processes */
 int	sayview = 0;		/* print view out */
-char	*rvdevice = NULL;	/* rview output device */
+char	*rvdevice = NULL;	/* rvu output device */
 char	*viewselect = NULL;	/* specific view only */
 
 int	overture = 0;		/* overture calculation needed */
@@ -112,10 +123,46 @@ char	radname[PATH_MAX];	/* root Radiance file name */
 
 #define	inchild()	(children_running < 0)
 
+static void rootname(char	*rn, char	*fn);
+static time_t checklast(char	*fnames);
+static char * newfname(char	*orig, int	pred);
+static void checkfiles(void);
+static void getoctcube(double	org[3], double	*sizp);
+static void setdefaults(void);
+static void oconv(void);
+static char * addarg(char	*op, char	*arg);
+static void oconvopts(char	*oo);
+static void mkillumopts(char	*mo);
+static void checkambfile(void);
+static double ambval(void);
+static void renderopts(char	*op, char	*po);
+static void lowqopts(char	*op, char	*po);
+static void medqopts(char	*op, char	*po);
+static void hiqopts(char	*op, char	*po);
+static void xferopts(char	*ro);
+static void pfiltopts(char	*po);
+static int matchword(char	*s1, char	*s2);
+static char * specview(char	*vs);
+static char * getview(int	n, char	*vn);
+static int myprintview(char	*vopts, FILE	*fp);
+static void rvu(char	*opts, char	*po);
+static void rpict(char	*opts, char	*po);
+static int touch(char	*fn);
+static int runcom(char	*cs);
+static int rmfile(char	*fn);
+static int mvfile(char	*fold, char	*fnew);
+static int next_process(void);
+static void wait_process(int	all);
+static void finish_process(void);
+static void badvalue(int	vc);
+static void syserr(char	*s);
 
-main(argc, argv)
-int	argc;
-char	*argv[];
+
+int
+main(
+	int	argc,
+	char	*argv[]
+)
 {
 	char	ropts[512];
 	char	popts[64];
@@ -161,7 +208,7 @@ char	*argv[];
 		goto userr;
 	rifname = argv[i];
 				/* check command-line options */
-	if (nprocs > 1 & viewselect != NULL)
+	if ((nprocs > 1) & (viewselect != NULL))
 		nprocs = 1;
 				/* assign Radiance root file name */
 	rootname(radname, rifname);
@@ -191,7 +238,7 @@ char	*argv[];
 	renderopts(ropts, popts);
 	xferopts(ropts);
 	if (rvdevice != NULL)
-		rview(ropts, popts);
+		rvu(ropts, popts);
 	else
 		rpict(ropts, popts);
 	quit(0);
@@ -200,15 +247,19 @@ userr:
 "Usage: %s [-w][-s][-n|-N npr][-t][-e][-V][-v view][-o dev] rfile [VAR=value ..]\n",
 			progname);
 	quit(1);
+	return 1; /* pro forma return */
 }
 
 
-rootname(rn, fn)		/* remove tail from end of fn */
-register char	*rn, *fn;
+static void
+rootname(		/* remove tail from end of fn */
+	register char	*rn,
+	register char	*fn
+)
 {
 	char	*tp, *dp;
 
-	for (tp = NULL, dp = rn; *rn = *fn++; rn++)
+	for (tp = NULL, dp = rn; (*rn = *fn++); rn++)
 		if (ISDIRSEP(*rn))
 			dp = rn;
 		else if (*rn == '.')
@@ -218,9 +269,10 @@ register char	*rn, *fn;
 }
 
 
-time_t
-checklast(fnames)			/* check files and find most recent */
-register char	*fnames;
+static time_t
+checklast(			/* check files and find most recent */
+	register char	*fnames
+)
 {
 	char	thisfile[PATH_MAX];
 	time_t	thisdate, lastdate = 0;
@@ -229,8 +281,11 @@ register char	*fnames;
 		return(0);
 	while ((fnames = nextword(thisfile, PATH_MAX, fnames)) != NULL) {
 		if (thisfile[0] == '!' ||
-				(thisfile[0] == '\\' && thisfile[1] == '!'))
+				(thisfile[0] == '\\' && thisfile[1] == '!')) {
+			if (!lastdate)
+				lastdate = 1;
 			continue;
+		}
 		if (!(thisdate = fdate(thisfile)))
 			syserr(thisfile);
 		if (thisdate > lastdate)
@@ -240,10 +295,11 @@ register char	*fnames;
 }
 
 
-char *
-newfname(orig, pred)		/* create modified file name */
-char	*orig;
-int	pred;
+static char *
+newfname(		/* create modified file name */
+	char	*orig,
+	int	pred
+)
 {
 	register char	*cp;
 	register int	n;
@@ -265,7 +321,8 @@ int	pred;
 }
 
 
-checkfiles()			/* check for existence and modified times */
+static void
+checkfiles(void)			/* check for existence and modified times */
 {
 	time_t	objdate;
 
@@ -300,17 +357,19 @@ checkfiles()			/* check for existence and modified tim
 }	
 
 
-getoctcube(org, sizp)		/* get octree bounding cube */
-double	org[3], *sizp;
+static void
+getoctcube(		/* get octree bounding cube */
+	double	org[3],
+	double	*sizp
+)
 {
-	extern FILE	*popen();
 	static double	oorg[3], osiz = 0.;
 	double	min[3], max[3];
 	char	buf[1024];
 	FILE	*fp;
 	register int	i;
 
-	if (osiz <= FTINY)
+	if (osiz <= FTINY) {
 		if (!nprocs && fdate(oct1name) <
 				(scenedate>illumdate?scenedate:illumdate)) {
 							/* run getbbox */
@@ -346,11 +405,13 @@ double	org[3], *sizp;
 			}
 			pclose(fp);
 		}
+	}
 	org[0] = oorg[0]; org[1] = oorg[1]; org[2] = oorg[2]; *sizp = osiz;
 }
 
 
-setdefaults()			/* set default values for unassigned var's */
+static void
+setdefaults(void)			/* set default values for unassigned var's */
 {
 	double	org[3], lim[3], size;
 	char	buf[128];
@@ -407,7 +468,8 @@ setdefaults()			/* set default values for unassigned v
 }
 
 
-oconv()				/* run oconv and mkillum if necessary */
+static void
+oconv(void)				/* run oconv and mkillum if necessary */
 {
 	static char	illumtmp[] = "ilXXXXXX";
 	char	combuf[PATH_MAX], ocopts[64], mkopts[64];
@@ -439,11 +501,11 @@ oconv()				/* run oconv and mkillum if necessary */
 	}
 	if (oct1name == vval(OCTREE))		/* no mkillum? */
 		oct1date = octreedate > matdate ? octreedate : matdate;
-	if (oct1date >= octreedate & oct1date >= matdate
-			& oct1date >= illumdate)	/* all done */
+	if ((oct1date >= octreedate) & (oct1date >= matdate)
+			& (oct1date >= illumdate))	/* all done */
 		return;
 						/* make octree0 */
-	if (oct0date < scenedate | oct0date < illumdate) {
+	if ((oct0date < scenedate) | (oct0date < illumdate)) {
 		if (touchonly && oct0date)
 			touch(oct0name);
 		else {				/* build command */
@@ -509,19 +571,23 @@ oconv()				/* run oconv and mkillum if necessary */
 }
 
 
-char *
-addarg(op, arg)				/* add argument and advance pointer */
-register char	*op, *arg;
+static char *
+addarg(				/* add argument and advance pointer */
+register char	*op,
+register char	*arg
+)
 {
 	*op = ' ';
-	while (*++op = *arg++)
+	while ( (*++op = *arg++) )
 		;
 	return(op);
 }
 
 
-oconvopts(oo)				/* get oconv options */
-register char	*oo;
+static void
+oconvopts(				/* get oconv options */
+	register char	*oo
+)
 {
 	/* BEWARE:  This may be called via setdefaults(), so no assumptions */
 
@@ -531,8 +597,10 @@ register char	*oo;
 }
 
 
-mkillumopts(mo)				/* get mkillum options */
-register char	*mo;
+static void
+mkillumopts(				/* get mkillum options */
+	register char	*mo
+)
 {
 	/* BEWARE:  This may be called via setdefaults(), so no assumptions */
 
@@ -542,7 +610,8 @@ register char	*mo;
 }
 
 
-checkambfile()			/* check date on ambient file */
+static void
+checkambfile(void)			/* check date on ambient file */
 {
 	time_t	afdate;
 
@@ -550,16 +619,17 @@ checkambfile()			/* check date on ambient file */
 		return;
 	if (!(afdate = fdate(vval(AMBFILE))))
 		return;
-	if (oct1date > afdate)
+	if (oct1date > afdate) {
 		if (touchonly)
 			touch(vval(AMBFILE));
 		else
 			rmfile(vval(AMBFILE));
+	}
 }
 
 
-double
-ambval()				/* compute ambient value */
+static double
+ambval(void)				/* compute ambient value */
 {
 	if (vdef(EXPOSURE)) {
 		if (vval(EXPOSURE)[0] == '+' || vval(EXPOSURE)[0] == '-')
@@ -571,11 +641,15 @@ ambval()				/* compute ambient value */
 	if (vlet(ZONE) == 'I')
 		return(.01);
 	badvalue(ZONE);
+	return 0; /* pro forma return */
 }
 
 
-renderopts(op, po)			/* set rendering options */
-char	*op, *po;
+static void
+renderopts(			/* set rendering options */
+	char	*op,
+	char	*po
+)
 {
 	switch(vscale(QUALITY)) {
 	case LOW:
@@ -591,9 +665,11 @@ char	*op, *po;
 }
 
 
-lowqopts(op, po)			/* low quality rendering options */
-register char	*op;
-char	*po;
+static void
+lowqopts(			/* low quality rendering options */
+	register char	*op,
+	char	*po
+)
 {
 	double	d, org[3], siz[3];
 
@@ -603,7 +679,7 @@ char	*po;
 			&siz[0], &org[1], &siz[1], &org[2], &siz[2]) != 6)
 		badvalue(ZONE);
 	siz[0] -= org[0]; siz[1] -= org[1]; siz[2] -= org[2];
-	if (siz[0] <= FTINY | siz[1] <= FTINY | siz[2] <= FTINY)
+	if ((siz[0] <= FTINY) | (siz[1] <= FTINY) | (siz[2] <= FTINY))
 		badvalue(ZONE);
 	getoctcube(org, &d);
 	d *= 3./(siz[0]+siz[1]+siz[2]);
@@ -611,19 +687,19 @@ char	*po;
 	case LOW:
 		po = addarg(po, "-ps 16");
 		op = addarg(op, "-dp 64");
-		sprintf(op, " -ar %d", (int)(4*d));
+		sprintf(op, " -ar %d", (int)(8*d));
 		op += strlen(op);
 		break;
 	case MEDIUM:
 		po = addarg(po, "-ps 8");
 		op = addarg(op, "-dp 128");
-		sprintf(op, " -ar %d", (int)(8*d));
+		sprintf(op, " -ar %d", (int)(16*d));
 		op += strlen(op);
 		break;
 	case HIGH:
 		po = addarg(po, "-ps 4");
 		op = addarg(op, "-dp 256");
-		sprintf(op, " -ar %d", (int)(16*d));
+		sprintf(op, " -ar %d", (int)(32*d));
 		op += strlen(op);
 		break;
 	}
@@ -640,28 +716,30 @@ char	*po;
 		overture = 0;
 	switch (vscale(VARIABILITY)) {
 	case LOW:
-		op = addarg(op, "-aa .4 -ad 64");
+		op = addarg(op, "-aa .3 -ad 256");
 		break;
 	case MEDIUM:
-		op = addarg(op, "-aa .3 -ad 128");
+		op = addarg(op, "-aa .25 -ad 512");
 		break;
 	case HIGH:
-		op = addarg(op, "-aa .25 -ad 256");
+		op = addarg(op, "-aa .2 -ad 1024");
 		break;
 	}
 	op = addarg(op, "-as 0");
 	d = ambval();
 	sprintf(op, " -av %.2g %.2g %.2g", d, d, d);
 	op += strlen(op);
-	op = addarg(op, "-lr 3 -lw .02");
+	op = addarg(op, "-lr 6 -lw .01");
 	if (vdef(RENDER))
 		op = addarg(op, vval(RENDER));
 }
 
 
-medqopts(op, po)			/* medium quality rendering options */
-register char	*op;
-char	*po;
+static void
+medqopts(			/* medium quality rendering options */
+	register char	*op,
+	char	*po
+)
 {
 	double	d, org[3], siz[3], asz;
 
@@ -671,7 +749,7 @@ char	*po;
 			&siz[0], &org[1], &siz[1], &org[2], &siz[2]) != 6)
 		badvalue(ZONE);
 	siz[0] -= org[0]; siz[1] -= org[1]; siz[2] -= org[2];
-	if (siz[0] <= FTINY | siz[1] <= FTINY | siz[2] <= FTINY)
+	if ((siz[0] <= FTINY) | (siz[1] <= FTINY) | (siz[2] <= FTINY))
 		badvalue(ZONE);
 	getoctcube(org, &d);
 	asz = (siz[0]+siz[1]+siz[2])/3.;
@@ -680,7 +758,7 @@ char	*po;
 	case LOW:
 		po = addarg(po, vbool(PENUMBRAS) ? "-ps 4" : "-ps 8");
 		op = addarg(op, "-dp 256");
-		sprintf(op, " -ar %d", (int)(8*d));
+		sprintf(op, " -ar %d", (int)(16*d));
 		op += strlen(op);
 		sprintf(op, " -ms %.2g", asz/20.);
 		op += strlen(op);
@@ -688,7 +766,7 @@ char	*po;
 	case MEDIUM:
 		po = addarg(po, vbool(PENUMBRAS) ? "-ps 3" : "-ps 6");
 		op = addarg(op, "-dp 512");
-		sprintf(op, " -ar %d", (int)(16*d));
+		sprintf(op, " -ar %d", (int)(32*d));
 		op += strlen(op);
 		sprintf(op, " -ms %.2g", asz/40.);
 		op += strlen(op);
@@ -696,7 +774,7 @@ char	*po;
 	case HIGH:
 		po = addarg(po, vbool(PENUMBRAS) ? "-ps 2" : "-ps 4");
 		op = addarg(op, "-dp 1024");
-		sprintf(op, " -ar %d", (int)(32*d));
+		sprintf(op, " -ar %d", (int)(64*d));
 		op += strlen(op);
 		sprintf(op, " -ms %.2g", asz/80.);
 		op += strlen(op);
@@ -708,7 +786,7 @@ char	*po;
 	else
 		op = addarg(op, "-ds .3");
 	op = addarg(op, "-dt .1 -dc .5 -dr 1 -sj .7 -st .1");
-	if (overture = vint(INDIRECT)) {
+	if ( (overture = vint(INDIRECT)) ) {
 		sprintf(op, " -ab %d", overture);
 		op += strlen(op);
 	}
@@ -719,27 +797,29 @@ char	*po;
 		overture = 0;
 	switch (vscale(VARIABILITY)) {
 	case LOW:
-		op = addarg(op, "-aa .25 -ad 196 -as 0");
+		op = addarg(op, "-aa .2 -ad 329 -as 42");
 		break;
 	case MEDIUM:
-		op = addarg(op, "-aa .2 -ad 400 -as 64");
+		op = addarg(op, "-aa .15 -ad 800 -as 128");
 		break;
 	case HIGH:
-		op = addarg(op, "-aa .15 -ad 768 -as 196");
+		op = addarg(op, "-aa .1 -ad 1536 -as 392");
 		break;
 	}
 	d = ambval();
 	sprintf(op, " -av %.2g %.2g %.2g", d, d, d);
 	op += strlen(op);
-	op = addarg(op, "-lr 6 -lw .002");
+	op = addarg(op, "-lr 8 -lw .002");
 	if (vdef(RENDER))
 		op = addarg(op, vval(RENDER));
 }
 
 
-hiqopts(op, po)				/* high quality rendering options */
-register char	*op;
-char	*po;
+static void
+hiqopts(				/* high quality rendering options */
+	register char	*op,
+	char	*po
+)
 {
 	double	d, org[3], siz[3], asz;
 
@@ -749,7 +829,7 @@ char	*po;
 			&siz[0], &org[1], &siz[1], &org[2], &siz[2]) != 6)
 		badvalue(ZONE);
 	siz[0] -= org[0]; siz[1] -= org[1]; siz[2] -= org[2];
-	if (siz[0] <= FTINY | siz[1] <= FTINY | siz[2] <= FTINY)
+	if ((siz[0] <= FTINY) | (siz[1] <= FTINY) | (siz[2] <= FTINY))
 		badvalue(ZONE);
 	getoctcube(org, &d);
 	asz = (siz[0]+siz[1]+siz[2])/3.;
@@ -758,7 +838,7 @@ char	*po;
 	case LOW:
 		po = addarg(po, vbool(PENUMBRAS) ? "-ps 1" : "-ps 8");
 		op = addarg(op, "-dp 1024");
-		sprintf(op, " -ar %d", (int)(16*d));
+		sprintf(op, " -ar %d", (int)(32*d));
 		op += strlen(op);
 		sprintf(op, " -ms %.2g", asz/40.);
 		op += strlen(op);
@@ -766,7 +846,7 @@ char	*po;
 	case MEDIUM:
 		po = addarg(po, vbool(PENUMBRAS) ? "-ps 1" : "-ps 5");
 		op = addarg(op, "-dp 2048");
-		sprintf(op, " -ar %d", (int)(32*d));
+		sprintf(op, " -ar %d", (int)(64*d));
 		op += strlen(op);
 		sprintf(op, " -ms %.2g", asz/80.);
 		op += strlen(op);
@@ -774,7 +854,7 @@ char	*po;
 	case HIGH:
 		po = addarg(po, vbool(PENUMBRAS) ? "-ps 1" : "-ps 3");
 		op = addarg(op, "-dp 4096");
-		sprintf(op, " -ar %d", (int)(64*d));
+		sprintf(op, " -ar %d", (int)(128*d));
 		op += strlen(op);
 		sprintf(op, " -ms %.2g", asz/160.);
 		op += strlen(op);
@@ -795,13 +875,13 @@ char	*po;
 		overture = 0;
 	switch (vscale(VARIABILITY)) {
 	case LOW:
-		op = addarg(op, "-aa .15 -ad 256 -as 0");
+		op = addarg(op, "-aa .125 -ad 512 -as 64");
 		break;
 	case MEDIUM:
-		op = addarg(op, "-aa .125 -ad 512 -as 256");
+		op = addarg(op, "-aa .1 -ad 1536 -as 768");
 		break;
 	case HIGH:
-		op = addarg(op, "-aa .08 -ad 1024 -as 512");
+		op = addarg(op, "-aa .075 -ad 4096 -as 2048");
 		break;
 	}
 	d = ambval();
@@ -813,8 +893,10 @@ char	*po;
 }
 
 
-xferopts(ro)				/* transfer options if indicated */
-char	*ro;
+static void
+xferopts(				/* transfer options if indicated */
+	char	*ro
+)
 {
 	int	fd, n;
 	register char	*cp;
@@ -844,8 +926,10 @@ char	*ro;
 }
 
 
-pfiltopts(po)				/* get pfilt options */
-register char	*po;
+static void
+pfiltopts(				/* get pfilt options */
+	register char	*po
+)
 {
 	*po = '\0';
 	if (vdef(EXPOSURE)) {
@@ -865,8 +949,11 @@ register char	*po;
 }
 
 
-matchword(s1, s2)			/* match white-delimited words */
-register char	*s1, *s2;
+static int
+matchword(			/* match white-delimited words */
+	register char	*s1,
+	register char	*s2
+)
 {
 	while (isspace(*s1)) s1++;
 	while (isspace(*s2)) s2++;
@@ -877,9 +964,10 @@ register char	*s1, *s2;
 }
 
 
-char *
-specview(vs)				/* get proper view spec from vs */
-register char	*vs;
+static char *
+specview(				/* get proper view spec from vs */
+	register char	*vs
+)
 {
 	static char	vup[7][12] = {"-vu 0 0 -1","-vu 0 -1 0","-vu -1 0 0",
 			"-vu 0 0 1", "-vu 1 0 0","-vu 0 1 0","-vu 0 0 1"};
@@ -897,7 +985,7 @@ register char	*vs;
 			upax = 1-'X'+UPPER(vval(UP)[1]);
 		else
 			upax = 1-'X'+vlet(UP);
-		if (upax < 1 | upax > 3)
+		if ((upax < 1) | (upax > 3))
 			badvalue(UP);
 		if (vval(UP)[0] == '-')
 			upax = -upax;
@@ -920,7 +1008,7 @@ register char	*vs;
 		zpos = -1; vs++;
 	}
 	viewtype = 'v';
-	if (*vs == 'v' | *vs == 'l' | *vs == 'a' | *vs == 'h' | *vs == 'c')
+	if((*vs == 'v') | (*vs == 'l') | (*vs == 'a') | (*vs == 'h') | (*vs == 'c'))
 		viewtype = *vs++;
 	cp = viewopts;
 	if ((!*vs || isspace(*vs)) && (xpos|ypos|zpos)) {	/* got one! */
@@ -1001,10 +1089,11 @@ register char	*vs;
 }
 
 
-char *
-getview(n, vn)				/* get view n, or NULL if none */
-int	n;
-char	*vn;		/* returned view name */
+static char *
+getview(				/* get view n, or NULL if none */
+	int	n,
+	char	*vn		/* returned view name */
+)
 {
 	register char	*mv;
 
@@ -1031,7 +1120,7 @@ char	*vn;		/* returned view name */
 		return(specview(viewselect));	/* standard view? */
 	}
 	mv = nvalue(VIEWS, n);		/* use view n */
-	if (vn != NULL & mv != NULL) {
+	if ((vn != NULL) & (mv != NULL)) {
 		register char	*mv2 = mv;
 		if (*mv2 != '-')
 			while (*mv2 && !isspace(*mv2))
@@ -1042,15 +1131,15 @@ char	*vn;		/* returned view name */
 }
 
 
-int
-myprintview(vopts, fp)			/* print out selected view */
-register char	*vopts;
-FILE	*fp;
+static int
+myprintview(			/* print out selected view */
+	register char	*vopts,
+	FILE	*fp
+)
 {
 	VIEW	vwr;
 	char	buf[128];
 	register char	*cp;
-again:
 	if (vopts == NULL)
 		return(-1);
 #ifdef _WIN32
@@ -1059,7 +1148,7 @@ again:
 		goto again;
 	}
 #endif
-	copystruct(&vwr, &stdview);
+	vwr = stdview;
 	sscanview(&vwr, cp=vopts);		/* set initial options */
 	while ((cp = strstr(cp, "-vf ")) != NULL &&
 			*atos(buf, sizeof(buf), cp += 4)) {
@@ -1073,8 +1162,11 @@ again:
 }
 
 
-rview(opts, po)				/* run rview with first view */
-char	*opts, *po;
+static void
+rvu(				/* run rvu with first view */
+	char	*opts,
+	char	*po
+)
 {
 	char	*vw;
 	char	combuf[PATH_MAX];
@@ -1083,21 +1175,24 @@ char	*opts, *po;
 		return;
 	if (sayview)
 		myprintview(vw, stdout);
-	sprintf(combuf, "rview %s%s%s -R %s ", vw, po, opts, rifname);
+	sprintf(combuf, "rvu %s%s%s -R %s ", vw, po, opts, rifname);
 	if (rvdevice != NULL)
 		sprintf(combuf+strlen(combuf), "-o %s ", rvdevice);
 	if (vdef(EXPOSURE))
 		sprintf(combuf+strlen(combuf), "-pe %s ", vval(EXPOSURE));
 	strcat(combuf, oct1name);
 	if (runcom(combuf)) {		/* run it */
-		fprintf(stderr, "%s: error running rview\n", progname);
+		fprintf(stderr, "%s: error running rvu\n", progname);
 		quit(1);
 	}
 }
 
 
-rpict(opts, po)				/* run rpict and pfilt for each view */
-char	*opts, *po;
+static void
+rpict(				/* run rpict and pfilt for each view */
+	char	*opts,
+	char	*po
+)
 {
 	char	combuf[PATH_MAX];
 	char	rawfile[PATH_MAX], picfile[PATH_MAX];
@@ -1149,7 +1244,7 @@ char	*opts, *po;
 			badvalue(REPORT);
 	}
 					/* set up parallel rendering */
-	if (nprocs > 1 & !vdef(ZFILE)) {
+	if ((nprocs > 1) & (!vdef(ZFILE))) {
 		strcpy(rppopt, "-S 1 -PP pfXXXXXX");
 		pfile = rppopt+9;
 		if (mktemp(pfile) == NULL)
@@ -1254,7 +1349,7 @@ char	*opts, *po;
 			mvfile(rawfile, combuf);
 		} else
 			rmfile(rawfile);
-		finish_process();		/* leave if child */
+		finish_process();		/* exit if child */
 	}
 	wait_process(1);		/* wait for children to finish */
 	if (pfile != NULL) {		/* clean up rpict persistent mode */
@@ -1262,7 +1357,7 @@ char	*opts, *po;
 		fp = fopen(pfile, "r");
 		if (fp != NULL) {
 			if (fscanf(fp, "%*s %d", &pid) != 1 ||
-					kill(pid, 1) == -1)
+					kill(pid, 1) < 0)
 				unlink(pfile);
 			fclose(fp);
 		}
@@ -1274,8 +1369,10 @@ rperror:
 }
 
 
-touch(fn)			/* update a file */
-char	*fn;
+static int
+touch(			/* update a file */
+	char	*fn
+)
 {
 	if (!silent)
 		printf("\ttouch %s\n", fn);
@@ -1290,8 +1387,10 @@ char	*fn;
 }
 
 
-runcom(cs)			/* run command */
-char	*cs;
+static int
+runcom(			/* run command */
+	char	*cs
+)
 {
 	if (!silent)		/* echo it */
 		printf("\t%s\n", cs);
@@ -1302,30 +1401,27 @@ char	*cs;
 }
 
 
-rmfile(fn)			/* remove a file */
-char	*fn;
+static int
+rmfile(			/* remove a file */
+	char	*fn
+)
 {
 	if (!silent)
-#ifdef _WIN32
-		printf("\tdel %s\n", fn);
-#else
-		printf("\trm -f %s\n", fn);
-#endif
+		printf("\t%s %s\n", DELCMD, fn);
 	if (!nprocs)
 		return(0);
 	return(unlink(fn));
 }
 
 
-mvfile(fold, fnew)		/* move a file */
-char	*fold, *fnew;
+static int
+mvfile(		/* move a file */
+	char	*fold,
+	char	*fnew
+)
 {
 	if (!silent)
-#ifdef _WIN32
-		printf("\trename %s %s\n", fold, fnew);
-#else
-		printf("\tmv %s %s\n", fold, fnew);
-#endif
+		printf("\t%s %s %s\n", RENAMECMD, fold, fnew);
 	if (!nprocs)
 		return(0);
 	return(rename(fold, fnew));
@@ -1333,15 +1429,15 @@ char	*fold, *fnew;
 
 
 #ifdef RHAS_FORK_EXEC
-int
-next_process()			/* fork the next process (max. nprocs) */
+static int
+next_process(void)			/* fork the next process (max. nprocs) */
 {
 	int	child_pid;
 
 	if (nprocs <= 1)
 		return(0);		/* it's us or no one */
 	if (inchild()) {
-		fprintf(stderr, "%s: internal error 1 in spawn_process()\n",
+		fprintf(stderr, "%s: internal error 1 in next_process()\n",
 				progname);
 		quit(1);
 	}
@@ -1361,8 +1457,10 @@ next_process()			/* fork the next process (max. nprocs
 	return(0);
 }
 
-wait_process(all)			/* wait for process(es) to finish */
-int	all;
+static void
+wait_process(			/* wait for process(es) to finish */
+	int	all
+)
 {
 	int	ourstatus = 0;
 	int	pid, status;
@@ -1378,7 +1476,7 @@ int	all;
 		status = status>>8 & 0xff;
 		--children_running;
 		if (status != 0) {	/* child's problem is our problem */
-			if (ourstatus == 0 & children_running > 0)
+			if ((ourstatus == 0) & (children_running > 0))
 				fprintf(stderr, "%s: waiting for remaining processes\n",
 						progname);
 			ourstatus = status;
@@ -1389,19 +1487,27 @@ int	all;
 		quit(ourstatus);	/* bad status from child */
 }
 #else	/* ! RHAS_FORK_EXEC */
-int
-next_process()
+static int
+next_process(void)
 {
 	return(0);			/* cannot start new process */
 }
+static void
 wait_process(all)
 int	all;
 {
 	(void)all;			/* no one to wait for */
 }
+int
+kill(pid, sig) /* win|unix_process.c should also wait and kill */
+int pid, sig;
+{
+	return 0;
+}
 #endif	/* ! RHAS_FORK_EXEC */
 
-finish_process()			/* exit a child process */
+static void
+finish_process(void)			/* exit a child process */
 {
 	if (!inchild())
 		return;			/* in parent -- noop */
@@ -1428,8 +1534,10 @@ char	*vname, *value;
 #endif
 
 
-badvalue(vc)			/* report bad variable value and exit */
-int	vc;
+static void
+badvalue(			/* report bad variable value and exit */
+	int	vc
+)
 {
 	fprintf(stderr, "%s: bad value for variable '%s'\n",
 			progname, vnam(vc));
@@ -1437,8 +1545,10 @@ int	vc;
 }
 
 
-syserr(s)			/* report a system error and exit */
-char	*s;
+static void
+syserr(			/* report a system error and exit */
+	char	*s
+)
 {
 	perror(s);
 	quit(1);