#if (SIZEOF_VOID_P > 4 && SIZEOF_VOID_P <= 8)
#ifndef HAVE_INTPTR_T
typedef int64_t intptr_t;
+#define SIZEOF_INTPTR_T 8
#endif
#ifndef HAVE_UINTPTR_T
typedef uint64_t uintptr_t;
+#define SIZEOF_UINTPTR_T 8
#endif
#elif (SIZEOF_VOID_P > 2 && SIZEOF_VOID_P <= 4)
#ifndef HAVE_INTPTR_T
typedef int32_t intptr_t;
+#define SIZEOF_INTPTR_T 4
#endif
#ifndef HAVE_UINTPTR_T
typedef uint32_t uintptr_t;
+#define SIZEOF_UINTPTR_T 4
#endif
#else
#error "void * is either >8 bytes or <= 2. In either case, I am confused."