--- ray/src/rt/ambient.c	2003/05/15 05:13:35	2.49
+++ ray/src/rt/ambient.c	2003/06/26 00:58:10	2.51
@@ -1,5 +1,5 @@
 #ifndef lint
-static const char	RCSid[] = "$Id: ambient.c,v 2.49 2003/05/15 05:13:35 greg Exp $";
+static const char	RCSid[] = "$Id: ambient.c,v 2.51 2003/06/26 00:58:10 schorsch Exp $";
 #endif
 /*
  *  ambient.c - routines dealing with ambient (inter-reflected) component.
@@ -9,12 +9,10 @@ static const char	RCSid[] = "$Id: ambient.c,v 2.49 200
 
 #include "copyright.h"
 
+#include  "platform.h"
 #include  "ray.h"
-
 #include  "otypes.h"
-
 #include  "ambient.h"
-
 #include  "random.h"
 
 #ifndef  OCTSCALE
@@ -165,7 +163,9 @@ setambient()				/* initialize calculation */
 					(flen - pos)/AMBVALSIZ);
 			error(WARNING, errmsg);
 			fseek(ambfp, pos, 0);
+#ifndef _WIN32 /* XXX we need a replacement for that one */
 			ftruncate(fileno(ambfp), (off_t)pos);
+#endif
 		}
 	} else if ((ambfp = fopen(ambfile, "w+")) != NULL) {
 		initambfile(1);			/* else create new file */
@@ -474,9 +474,7 @@ int  creat;
 #ifdef	F_SETLKW
 	aflock(creat ? F_WRLCK : F_RDLCK);
 #endif
-#ifdef MSDOS
-	setmode(fileno(ambfp), O_BINARY);
-#endif
+	SET_FILE_BINARY(ambfp);
 	if (mybuf == NULL)
 		mybuf = (char *)bmalloc(BUFSIZ+8);
 	setbuf(ambfp, mybuf);