[distcc] distcc 2.12.1 patch for Tru64 UNIX

[Albert Chin]

Tru64 UNIX was failing the ParseMask_Case test until I applied the
patch below.

-- 
albert chin (china at thewrittenword.com)

-- snip snip
--- src/access.c.orig	2004-02-19 02:14:33.000000000 -0600
+++ src/access.c	2004-02-19 02:14:43.000000000 -0600
@@ -95,11 +95,11 @@
          * is undefined.  (And indeed it fails on i386 because the SHR does
          * not saturate.)  */
         if (mask_bits == 32)
-            *mask = (in_addr_t) ~0UL;
+            *mask = (in_addr_t) ~0U;
         else
-            *mask = htonl(~(~0UL >> mask_bits));
+            *mask = htonl(~(~0U >> mask_bits));
     } else {
-        *mask = (in_addr_t) ~0UL;
+        *mask = (in_addr_t) ~0U;
     }
     return 0;
 }