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$NetBSD: patch-src_tiffwrite.c,v 1.1.2.2 2012/07/31 15:12:03 tron Exp $

Both ocaml/caml/config.h and tiff.h define int32, uint32, etc.
The workaround of this name polution is to intentionally overwrite the
first caml definition with a garbage macro before tiff.h is included and
then unset it after the include.  After tiff version 4.0.1, the same hack
has to be applied to 64-bit types

--- src/tiffwrite.c.orig	2011-06-22 18:04:32.000000000 +0000
+++ src/tiffwrite.c
@@ -25,6 +25,8 @@
 #define uint16 uint16tiff
 #define int32 int32tiff
 #define uint32 uint32tiff
+#define int64 int64tiff
+#define uint64 uint64tiff
 
 #include <tiffio.h>
 
@@ -32,6 +34,8 @@
 #undef uint16
 #undef int32
 #undef uint32
+#undef int64
+#undef uint64
 
 extern value *imglib_error;