--- src/lib/TIFF/tif_dirwrite.c.orig	Wed Mar 18 04:09:29 1992
+++ src/lib/TIFF/tif_dirwrite.c	Sun Jan 17 17:48:20 1999
@@ -177,7 +177,8 @@
 	dataoff = tif->tif_diroff + sizeof (short) + dirsize + sizeof (long);
 	if (dataoff & 1)
 		dataoff++;
-	(void) lseek(tif->tif_fd, dataoff, L_SET);
+	/* added (off_t) below.....jj@ldjpc.apana.org.au*/
+	(void) lseek(tif->tif_fd, (off_t)(dataoff), L_SET);
 	tif->tif_curdir++;
 	dir = (TIFFDirEntry *)data;
 	/*
@@ -314,7 +315,8 @@
 	/*
 	 * Write directory.
 	 */
-	(void) lseek(tif->tif_fd, tif->tif_diroff, L_SET);
+	/*added (off_t) below.....jj@ldjpc.apana.org.au*/
+	(void) lseek(tif->tif_fd, (off_t)(tif->tif_diroff), L_SET);
 	dircount = nfields;
 	if (!WriteOK(tif->tif_fd, &dircount, sizeof (short))) {
 		TIFFError(tif->tif_name, "Error writing directory count");
@@ -762,13 +764,15 @@
 	u_short dircount;
 	long nextdir;
 
-	tif->tif_diroff = (lseek(tif->tif_fd, 0L, L_XTND)+1) &~ 1L;
+	/* changed 0L to (off_t)0 below...jj@ldjpc.apana.org.au*/
+	tif->tif_diroff = (lseek(tif->tif_fd, (off_t)0, L_XTND)+1) &~ 1L;
 	if (tif->tif_header.tiff_diroff == 0) {
 		/*
 		 * First directory, overwrite header.
 		 */
 		tif->tif_header.tiff_diroff = tif->tif_diroff;
-		(void) lseek(tif->tif_fd, 0L, L_SET);
+		/* changed 0L to (off_t)0 .. jj@ldjpc.apana.org.au*/
+		(void) lseek(tif->tif_fd, (off_t)0, L_SET);
 		if (!WriteOK(tif->tif_fd, &tif->tif_header,
 		    sizeof (tif->tif_header))) {
 			TIFFError(tif->tif_name, "Error writing TIFF header");
@@ -788,7 +792,8 @@
 		}
 		if (tif->tif_flags & TIFF_SWAB)
 			TIFFSwabShort(&dircount);
-		lseek(tif->tif_fd, dircount * sizeof (TIFFDirEntry), L_INCR);
+		/*added (off_t) below....jj@ldjpc.apana.org.au*/
+		lseek(tif->tif_fd, (off_t)(dircount * sizeof (TIFFDirEntry)), L_INCR);
 		if (!ReadOK(tif->tif_fd, &nextdir, sizeof (nextdir))) {
 			TIFFError(module, "Error fetching directory link");
 			return (0);
@@ -796,7 +801,8 @@
 		if (tif->tif_flags & TIFF_SWAB)
 			TIFFSwabLong((u_long *)&nextdir);
 	} while (nextdir != 0);
-	(void) lseek(tif->tif_fd, -sizeof (nextdir), L_INCR);
+	/*added (off_t) below ... jj@ldjpc.apana.org.au*/
+	(void) lseek(tif->tif_fd, (off_t)(-sizeof (nextdir)), L_INCR);
 	if (!WriteOK(tif->tif_fd, &tif->tif_diroff, sizeof (tif->tif_diroff))) {
 		TIFFError(module, "Error writing directory link");
 		return (0);