backport: And use 16k pages on ia64.

svn:r14074

ChangeLog

@@ -32,7 +32,8 @@ Changes in version 0.2.0.22-rc - 2008-03-17
       get_interface_address6().
     - When using a nonstandard malloc, do not use the platform values for
       HAVE_MALLOC_GOOD_SIZE or HAVE_MALLOC_USABLE_SIZE.
-    - Make the openbsd malloc code use 8k pages on alpha CPUs.
+    - Make the openbsd malloc code use 8k pages on alpha CPUs and 16k pages
+      on ia64.
     - Detect mismatched page sizes when using --enable-openbsd-malloc.
     - Avoid double-marked-for-close warning when certain kinds of invalid
       .in-addr.arpa addresses are passed to the DNSPort.  Part of a fix

src/common/OpenBSD_malloc_Linux.c

@@ -97,7 +97,10 @@ static pthread_mutex_t gen_mutex = PTHREAD_MUTEX_INITIALIZER;
 
 #if defined(__sparc__) || defined(__alpha__)
 #define	malloc_pageshift	13U
-#endif /* __sparc__ */
+#endif
+#if defined(__ia64__)
+#define	malloc_pageshift	14U
+#endif
 
 #ifndef malloc_pageshift
 #define malloc_pageshift	(PGSHIFT)