--- zzip/mmapped.c.orig	2021-01-04 23:05:08 UTC

+++ zzip/mmapped.c

@@ -661,16 +661,16 @@ zzip_disk_entry_fopen(ZZIP_DISK * disk, ZZIP_DISK_ENTR

     ___ /* a ZIP64 extended block may follow. */

     size_t csize = zzip_file_header_csize(header);

-    off_t offset = zzip_file_header_to_data(header);

+    off_t offset = (off_t) zzip_file_header_to_data(header);

     if (csize == 0xFFFFu) {

-        struct zzip_extra_zip64* zip64 =

+        struct zzip_extra_zip64* zip64 = (struct zzip_extra_zip64 *)

            zzip_file_header_to_extras(header);

         if (ZZIP_EXTRA_ZIP64_CHECK(zip64)) {

             csize = zzip_extra_zip64_csize(zip64);

         }

     }

     if (offset == 0xFFFFu) {

-        struct zzip_extra_zip64* zip64 =

+        struct zzip_extra_zip64* zip64 = (struct zzip_extra_zip64 *)

            zzip_file_header_to_extras(header);

         if (ZZIP_EXTRA_ZIP64_CHECK(zip64)) {

             offset = zzip_extra_zip64_offset(zip64);

@@ -682,7 +682,7 @@ zzip_disk_entry_fopen(ZZIP_DISK * disk, ZZIP_DISK_ENTR

     file->zlib.zalloc = Z_NULL;

     file->zlib.zfree = Z_NULL;

     file->zlib.avail_in = csize;

-    file->zlib.next_in = offset;

+    file->zlib.next_in = (Bytef *) offset;

     ____;

     DBG2("compressed size %i", (int) file->zlib.avail_in);