--- dwdiff-2.1.3.old/src/definitions.h
+++ dwdiff-2.1.3/src/definitions.h
@@ -45,7 +45,9 @@
 /* Define a bool type if not already defined (C++ and C99 do)*/
 #if !(defined(__cplusplus) || (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 19990601L))
 /*@-incondefs@*/
-typedef enum {false, true} bool;
+#define bool  int
+#define false 0
+#define true  1
 /*@+incondefs@*/
 #elif defined(__STDC_VERSION__) && __STDC_VERSION__ >= 19990601L
 #include <stdbool.h>
--- dwdiff-2.1.3.old/src/option.c
+++ dwdiff-2.1.3/src/option.c
@@ -14,6 +14,7 @@
 
 #include <ctype.h>
 #include <unistd.h>
+#include <unicode/utypes.h>
 
 #include "definitions.h"
 #include "stream.h"