--- ray/src/px/ximage.c	1992/06/24 09:17:43	2.5
+++ ray/src/px/ximage.c	2003/04/23 00:52:34	2.10
@@ -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 2.10 2003/04/23 00:52:34 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"
@@ -86,13 +85,7 @@ char  *progname;
 
 char  errmsg[128];
 
-extern long  ftell();
 
-extern char  *malloc(), *calloc();
-
-extern double  pow(), log();
-
-
 main(argc, argv)
 int  argc;
 char  *argv[];
@@ -103,7 +96,7 @@ char  *argv[];
 	int  i;
 	
 	progname = argv[0];
-	if ((gv = getenv("GAMMA")) != NULL)
+	if ((gv = getenv("DISPLAY_GAMMA")) != NULL)
 		gamcor = atof(gv);
 
 	for (i = 1; i < argc; i++)
@@ -171,6 +164,7 @@ userr:
 }
 
 
+int
 headline(s)		/* get relevant info from header */
 char  *s;
 {
@@ -183,6 +177,7 @@ char  *s;
 		wrongformat = strcmp(fmt, COLRFMT);
 	} else if (isview(s) && sscanview(&ourview, s) > 0)
 		gotview++;
+	return(0);
 }
 
 
@@ -251,6 +246,7 @@ char  *err;
 }
 
 
+void
 eputs(s)
 char	*s;
 {
@@ -258,6 +254,7 @@ char	*s;
 }
 
 
+void
 quit(code)
 int  code;
 {
@@ -571,8 +568,8 @@ getmono()			/* get monochrome data */
 			cerr[x] = err + errp;
 		}
 	}
-	free((char *)inl);
-	free((char *)cerr);
+	free((void *)inl);
+	free((void *)cerr);
 }
 
 
@@ -600,7 +597,7 @@ colormap	cmap;
 			xr->cdefs[xr->ncolors].pixel = *p;
 			xr->pmap[*p] = xr->ncolors++;
 		}
-	xr->cdefs = (Color *)realloc((char *)xr->cdefs, xr->ncolors*sizeof(Color));
+	xr->cdefs = (Color *)realloc((void *)xr->cdefs, xr->ncolors*sizeof(Color));
 	if (xr->cdefs == NULL)
 		return(0);
 	return(1);
@@ -644,7 +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)