diff -ur lib.h.orig lib.h 
--- lib.h.orig	2018-06-26 21:16:01.758253475 +0200
+++ lib.h	2018-06-26 21:16:15.786252900 +0200
@@ -16,6 +16,7 @@
 #include <zzip/zzip.h>
 #include <zzip/plugin.h>
 #include <zzip/stdint.h>
+#include <zzip/zzip32.h>
 
 #ifdef __cplusplus
 extern "C" {
