diff --git a/desmume/src/types.h b/desmume/src/types.h
index 6bb598dc0..f1d4791f9 100644
--- a/desmume/src/types.h
+++ b/desmume/src/types.h
@@ -19,7 +19,6 @@
 #ifndef TYPES_HPP
 #define TYPES_HPP
 
-#include <cstdint>
 #include <retro_miscellaneous.h>
 #include <retro_inline.h>
 #include <math/fxp.h>
@@ -230,15 +229,44 @@
 	#endif
 #endif
 
-typedef uint8_t u8;
-typedef uint16_t u16;
-typedef uint32_t u32;
-typedef uint64_t u64;
+#if defined(__LP64__)
+typedef unsigned char u8;
+typedef unsigned short u16;
+typedef unsigned int u32;
+typedef unsigned long long u64;
 
-typedef int8_t s8;
-typedef int16_t s16;
-typedef int32_t s32;
-typedef int64_t s64;
+typedef signed char s8;
+typedef signed short s16;
+typedef signed int s32;
+typedef signed long long s64;
+#else
+typedef unsigned char u8;
+typedef unsigned short u16;
+typedef unsigned int u32;
+#if defined(_MSC_VER) || defined(__INTEL_COMPILER)
+typedef unsigned __int64 u64;
+#else
+typedef unsigned long long u64;
+#endif
+
+typedef signed char s8;
+typedef signed short s16;
+typedef signed int s32;
+#if defined(_MSC_VER) || defined(__INTEL_COMPILER)
+typedef __int64 s64;
+#else
+typedef signed long long s64;
+#endif
+#endif
+
+typedef u8  uint8;
+typedef u16 uint16;
+
+#ifndef OBJ_C
+typedef u32 uint32;
+#else
+#define uint32 u32 //uint32 is defined in Leopard somewhere, avoid conflicts
+#endif
 
 #ifdef ENABLE_ALTIVEC
 	#ifndef __APPLE_ALTIVEC__