diff -r 87802cb25a0f -r 2789bdd1a950 arch/ia64/config.in
--- a/arch/ia64/config.in	Fri Jun 27 13:58:53 2008 +0000
+++ b/arch/ia64/config.in	Fri Jun 27 14:55:22 2008 +0000
@@ -2,3 +2,6 @@
 
 config ARCH_ia64
     select ARCH_SUPPORTS_BOTH_ENDIAN
+    help
+      The ia64 architecture, as defined by:
+        http://www.intel.com/design/itanium/arch_spec.htm