--- zip.h.orig	2010-02-15 12:58:22.000000000 +0100
+++ zip.h	2014-05-24 13:47:52.838188589 +0200
@@ -144,6 +144,11 @@
                                    zipcharpc* globalcomment,
                                    zlib_filefunc64_def* pzlib_filefunc_def));
 
+extern zipFile ZEXPORT zipOpen3 OF((const void *pathname,
+                                    int append,
+                                    zipcharpc* globalcomment,
+                                    zlib_filefunc64_32_def* pzlib_filefunc64_32_def));
+
 extern int ZEXPORT zipOpenNewFileInZip OF((zipFile file,
                        const char* filename,
                        const zip_fileinfo* zipfi,
@@ -311,6 +316,11 @@
   Write data in the zipfile
 */
 
+extern int ZEXPORT zipFlush OF((zipFile file));
+/*
+  Flush the zipfile output
+*/
+
 extern int ZEXPORT zipCloseFileInZip OF((zipFile file));
 /*
   Close the current file in the zipfile