mz80 uses unsigned long as UINT32 by default, which is 64 bits on LP64. Use
stdint.h instead.

Index: dgen-1.23/mz80.h
===================================================================
--- dgen-1.23.orig/mz80.h	2007-12-09 20:27:28.000000000 -0200
+++ dgen-1.23/mz80.h	2007-12-09 20:27:36.000000000 -0200
@@ -46,28 +46,30 @@
 #ifndef	_MZ80_H_
 #define	_MZ80_H_
 
+#include <stdint.h>
+
 #ifndef UINT32
-#define UINT32  unsigned long int
+#define UINT32  uint32_t
 #endif
 
 #ifndef UINT16
-#define UINT16  unsigned short int
+#define UINT16  uint16_t
 #endif
 
 #ifndef UINT8
-#define UINT8   unsigned char
+#define UINT8   uint8_t
 #endif
 
 #ifndef INT32
-#define INT32  signed long int
+#define INT32  int32_t
 #endif
 
 #ifndef INT16
-#define INT16  signed short int
+#define INT16  int16_t
 #endif
 
 #ifndef INT8
-#define INT8   signed char
+#define INT8   int8_t
 #endif
 
 #ifdef __cplusplus
Index: dgen-1.23/mz80/makez80.c
===================================================================
--- dgen-1.23.orig/mz80/makez80.c	2007-12-09 20:27:28.000000000 -0200
+++ dgen-1.23/mz80/makez80.c	2007-12-09 20:27:36.000000000 -0200
@@ -50,6 +50,7 @@
 #include <stdlib.h>
 #include <string.h>
 #include <assert.h>
+#include <stdint.h>
 
 #define	VERSION 					"3.4"
 
@@ -57,8 +58,8 @@
 #define FALSE           		0x0
 #define INVALID					0xff
 
-#define UINT32          		unsigned long int
-#define UINT8           		unsigned char
+#define UINT32          		uint32_t
+#define UINT8           		uint8_t
 
 #define	TIMING_REGULAR			0x00
 #define	TIMING_XXCB				0x01