--- ray/src/rt/rcmain.c	2022/10/19 23:10:34	2.23
+++ ray/src/rt/rcmain.c	2023/08/15 00:46:56	2.31
@@ -1,5 +1,5 @@
 #ifndef lint
-static const char	RCSid[] = "$Id: rcmain.c,v 2.23 2022/10/19 23:10:34 greg Exp $";
+static const char	RCSid[] = "$Id: rcmain.c,v 2.31 2023/08/15 00:46:56 greg Exp $";
 #endif
 /*
  *  rcmain.c - main for rtcontrib ray contribution tracer
@@ -55,13 +55,17 @@ char	RCCONTEXT[] = "RC.";		/* our special evaluation c
 
 #if defined(_WIN32) || defined(_WIN64)
 #define RCONTRIB_FEATURES	"Accumulation\nSummation\nRecovery\n" \
-				"ValueContribution\nImmediateIrradiance\n" \
-				"ProgressReporting\nDistanceLimiting\n"
+				"ImmediateIrradiance\n" \
+				"ProgressReporting\nDistanceLimiting\n" \
+				"InputFormats=a,f,d\nOutputFormats=a,f,d,c\n" \
+				"Outputs=V,W\n"
 #else
 #define RCONTRIB_FEATURES	"Multiprocessing\n" \
 				"Accumulation\nSummation\nRecovery\n" \
-				"ValueContribution\nImmediateIrradiance\n" \
-				"ProgressReporting\nDistanceLimiting\n"
+				"ImmediateIrradiance\n" \
+				"ProgressReporting\nDistanceLimiting\n" \
+				"InputFormats=a,f,d\nOutputFormats=a,f,d,c\n" \
+				"Outputs=V,W\n"
 #endif
 
 static void
@@ -195,10 +199,12 @@ main(int argc, char *argv[])
 	gargc = argc;
 					/* feature check only? */
 	strcat(RFeatureList, RCONTRIB_FEATURES);
-	if (!strcmp(argv[1], "-features"))
+	if (argc > 1 && !strcmp(argv[1], "-features"))
 		return feature_status(argc-2, argv+2);
-#if defined(_WIN32) || defined(_WIN64)
-	_setmaxstdio(2048);		/* increase file limit to maximum */
+#if defined(_WIN32) || defined(_WIN64) 	/* increase file limit to maximum */
+	for (i = 8192; i > _IOB_ENTRIES; i >>= 1)
+		if (_setmaxstdio(i) == i)
+			break;
 #endif
 					/* initialize calcomp routines early */
 	initfunc();
@@ -400,7 +406,7 @@ badopt:
 
 void
 wputs(				/* warning output function */
-	char	*s
+	const char	*s
 )
 {
 	int  lasterrno = errno;
@@ -411,7 +417,7 @@ wputs(				/* warning output function */
 
 void
 eputs(				/* put string to stderr */
-	char  *s
+	const char  *s
 )
 {
 	static int  midline = 0;