--- ray/src/px/ximage.c	1992/04/28 09:40:36	2.4
+++ ray/src/px/ximage.c	2003/02/22 02:07:28	2.9
@@ -1,9 +1,6 @@
-/* Copyright (c) 1987 Regents of the University of California */
-
 #ifndef lint
-static char SCCSid[] = "$SunId$ LBL";
+static const char	RCSid[] = "$Id: ximage.c,v 2.9 2003/02/22 02:07:28 greg Exp $";
 #endif
-
 /*
  *  ximage.c - driver for X-windows
  *
@@ -21,6 +18,8 @@ static char SCCSid[] = "$SunId$ LBL";
 
 #include  <ctype.h>
 
+#include  <time.h>
+
 #include  "color.h"
 
 #include  "resolu.h"
@@ -86,21 +85,19 @@ char  *progname;
 
 char  errmsg[128];
 
-extern long  ftell();
 
-extern char  *malloc(), *calloc();
-
-extern double  pow(), log();
-
-
 main(argc, argv)
 int  argc;
 char  *argv[];
 {
+	extern char  *getenv();
+	char  *gv;
 	int  headline();
 	int  i;
 	
 	progname = argv[0];
+	if ((gv = getenv("DISPLAY_GAMMA")) != NULL)
+		gamcor = atof(gv);
 
 	for (i = 1; i < argc; i++)
 		if (argv[i][0] == '-')
@@ -167,6 +164,7 @@ userr:
 }
 
 
+int
 headline(s)		/* get relevant info from header */
 char  *s;
 {
@@ -179,6 +177,7 @@ char  *s;
 		wrongformat = strcmp(fmt, COLRFMT);
 	} else if (isview(s) && sscanview(&ourview, s) > 0)
 		gotview++;
+	return(0);
 }
 
 
@@ -247,6 +246,7 @@ char  *err;
 }
 
 
+void
 eputs(s)
 char	*s;
 {
@@ -254,6 +254,7 @@ char	*s;
 }
 
 
+void
 quit(code)
 int  code;
 {
@@ -567,8 +568,8 @@ getmono()			/* get monochrome data */
 			cerr[x] = err + errp;
 		}
 	}
-	free((char *)inl);
-	free((char *)cerr);
+	free((void *)inl);
+	free((void *)cerr);
 }
 
 
@@ -640,7 +641,7 @@ int  y;
 		if (fseek(fin, scanpos[y], 0) == -1)
 			quiterr("fseek error");
 		cury = y;
-	} else if (scanpos != NULL)
+	} else if (scanpos != NULL && scanpos[y] == -1)
 		scanpos[y] = ftell(fin);
 
 	if (freadcolrs(scanline, xmax, fin) < 0)