Recognise s390 and s390x as big-endian platforms

neuschaefer · neuschaefer · commit 52f5569eb5a7 · 2025-06-30T22:48:43.000Z
diff --git a/Source/C++/Core/Ap4Config.h b/Source/C++/Core/Ap4Config.h
@@ -52,6 +52,8 @@
 #if !defined(AP4_PLATFORM_BYTE_ORDER)
 #if defined(__ppc__) || defined(__powerpc__) || defined(__PPC__) || defined(__PPC)
 #define AP4_PLATFORM_BYTE_ORDER AP4_PLATFORM_BYTE_ORDER_BIG_ENDIAN
+#elif defined(__s390__)
+#define AP4_PLATFORM_BYTE_ORDER AP4_PLATFORM_BYTE_ORDER_BIG_ENDIAN
 #elif defined(_MSC_VER)
 #if defined(_M_IX86) || defined(_M_X64) || defined(_M_ARM) || defined(_M_ARM64)
 #define AP4_PLATFORM_BYTE_ORDER AP4_PLATFORM_BYTE_ORDER_LITTLE_ENDIAN
