diff -Naur a/win32/ogg.def b/win32/ogg.def
--- a/win32/ogg.def	2019-08-07 15:58:05.000000000 -0700
+++ b/win32/ogg.def	2019-12-09 20:22:47.721967800 -0800
@@ -6,6 +6,7 @@
 EXPORTS
 ;
 oggpack_writeinit
+oggpack_writecheck
 oggpack_writetrunc
 oggpack_writealign
 oggpack_writecopy
@@ -24,6 +25,7 @@
 oggpack_get_buffer
 ;
 oggpackB_writeinit
+oggpackB_writecheck
 oggpackB_writetrunc
 oggpackB_writealign
 oggpackB_writecopy
@@ -42,13 +44,18 @@
 oggpackB_get_buffer
 ;
 ogg_stream_packetin
+ogg_stream_iovecin
 ogg_stream_pageout
+ogg_stream_pageout_fill
 ogg_stream_flush
+ogg_stream_flush_fill
 ;
 ogg_sync_init
 ogg_sync_clear
 ogg_sync_reset
 ogg_sync_destroy
+ogg_sync_check
+;
 ogg_sync_buffer
 ogg_sync_wrote
 ogg_sync_pageseek
@@ -62,11 +69,11 @@
 ogg_stream_reset
 ogg_stream_reset_serialno
 ogg_stream_destroy
+ogg_stream_check
 ogg_stream_eos
-ogg_stream_pageout_fill
-ogg_stream_flush_fill
 ;
 ogg_page_checksum_set
+;
 ogg_page_version
 ogg_page_continued
 ogg_page_bos
@@ -75,6 +82,5 @@
 ogg_page_serialno
 ogg_page_pageno
 ogg_page_packets
+;
 ogg_packet_clear
-                                                        
-