1 files changed, 5 insertions, 2 deletions

diff --git a/contrib/infback9/infback9.h b/contrib/infback9/infback9.h
index fb7c73e..10bf58c 100644
--- a/contrib/infback9/infback9.h
+++ b/contrib/infback9/infback9.h
@@ -7,10 +7,13 @@
  * This header file and associated patches provide a decoder for PKWare's
  * undocumented deflate64 compression method (method 9).  Use with infback9.c,
  * inftree9.h, inftree9.c, and inffix9.h.  These patches are not supported.
- * This code will almost certainly not work on 16-bit architectures.  See the
+ * This should be compiled with zlib, since it uses zutil.h and zutil.o.
+ * This code has not yet been tested on 16-bit architectures.  See the
  * comments in zlib.h for inflateBack() usage.  These functions are used
  * identically, except that there is no windowBits parameter, and a 64K
- * window must be provided.  zlib.h must be included before this header file.
+ * window must be provided.  Also if int's are 16 bits, then a zero for
+ * the third parameter of the "out" function actually means 65536UL.
+ * zlib.h must be included before this header file.
  */
 
 ZEXTERN int ZEXPORT inflateBack9 OF((z_stream FAR *strm,