--- zip.h.orig	2024-01-27 14:07:18.636193212 +0100
+++ zip.h	2024-01-27 14:10:04.104643731 +0100
@@ -313,6 +313,11 @@
   Write data in the zipfile
 */
 
+extern int ZEXPORT zipFlush (zipFile file);
+/*
+  Flush the zipfile output
+*/
+
 extern int ZEXPORT zipCloseFileInZip(zipFile file);
 /*
   Close the current file in the zipfile