diff -ruwN mgba-0.10.5/src/third-party/zlib/contrib/minizip/ioapi.h source/src/third-party/zlib/contrib/minizip/ioapi.h
--- mgba-0.10.5/src/third-party/zlib/contrib/minizip/ioapi.h	2025-03-08 20:09:26.000000000 -0700
+++ source/src/third-party/zlib/contrib/minizip/ioapi.h	2025-06-13 13:07:13.489517096 -0600
@@ -50,7 +50,7 @@
 #define ftello64 ftell
 #define fseeko64 fseek
 #else
-#ifdef __FreeBSD__
+#if defined(__FreeBSD__) || defined(__redox__)
 #define fopen64 fopen
 #define ftello64 ftello
 #define fseeko64 fseeko