Index: Include/pyport.h
===================================================================
--- Include/pyport.h	(revision 85582)
+++ Include/pyport.h	(working copy)
@@ -13,6 +13,10 @@
 #include <stdint.h>
 #endif
 
+#ifdef __FreeBSD__
+#include <osreldate.h>
+#endif
+
 /**************************************************************************
 Symbols and macros to supply platform-independent interfaces to basic
 C language & library operations whose spellings vary across platforms.
@@ -75,6 +79,16 @@
 #endif
 #endif /* HAVE_LONG_LONG */
 
+/* FreeBSD 4 does not have *_MAX for exact-width integer types. */
+#ifdef __FreeBSD__
+#if __FreeBSD_version >= 400000 && __FreeBSD_version < 500000
+#define UINT32_MAX 0xffffffff
+#define UINT64_MAX 0xffffffffffffffffULL
+#define INT32_MAX 0x7fffffff
+#define INT64_MAX 0x7fffffffffffffffLL
+#endif
+#endif
+
 /* a build with 30-bit digits for Python long integers needs an exact-width
  * 32-bit unsigned integer type to store those digits.  (We could just use
  * type 'unsigned long', but that would be wasteful on a system where longs
@@ -635,7 +649,6 @@
  */
 
 #ifdef __FreeBSD__
-#include <osreldate.h>
 #if __FreeBSD_version > 500039
 # define _PY_PORT_CTYPE_UTF8_ISSUE
 #endif