--- src/usr.bin/xlint/lint1/param.h	2004/07/07 08:20:18	1.2
+++ src/usr.bin/xlint/lint1/param.h	2006/07/27 00:41:24	1.3
@@ -30,6 +30,7 @@
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  *
+ * $FreeBSD: src/usr.bin/xlint/lint1/param.h,v 1.9 2004/05/14 13:44:36 cognet Exp $
  * $DragonFly$
  */
 
@@ -62,7 +63,10 @@
  * Should be set to 1 if the difference of two pointers is of type long
  * or the value of sizeof is of type unsigned long.
  */
-#ifdef __alpha__
+#ifdef __amd64__
+#define PTRDIFF_IS_LONG		1
+#define SIZEOF_IS_ULONG		1
+#elif __alpha__
 #define PTRDIFF_IS_LONG		1
 #define SIZEOF_IS_ULONG		1
 #elif __i386__