This file is part of MXE.
See index.html for further information.
This is a quick&dirty fix.
The bug is being discussed at
http://www.nih.at/listarchive/libzip-discuss/msg00304.html
--- a/lib/zip.h 2013-03-19 11:09:51.000000000 +0100
+++ b/lib/zip.h 2013-05-23 16:50:53.881403133 +0200
@@ -37,9 +37,9 @@
#ifndef ZIP_EXTERN
-#ifdef _WIN32
+#ifdef _MSC_VER
#define ZIP_EXTERN __declspec(dllimport)
-#elif defined(__GNUC__) && __GNUC__ >= 4
+#elif (defined(__GNUC__) && __GNUC__ >= 4) && !defined(_WIN32)
#define ZIP_EXTERN __attribute__ ((visibility ("default")))
#else
#define ZIP_EXTERN