Merged IA64 build fixes from 2.2 (this will undoubtably need to be tested

before we can claim 2.3 works on that platform)
Updated config{guess,sub}


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@11978 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

configure.in

@@ -391,6 +391,7 @@ USE_SUN=
 USE_SOLARIS=
 USE_SUNOS=
 USE_ALPHA=
+USE_IA64=
 USE_OSF=
 USE_BSD=
 USE_DARWIN=
@@ -457,6 +458,10 @@ case "${host}" in
       USE_ALPHA=1
       AC_DEFINE(__ALPHA__)
     fi
+    if test "x$TMP" = "xia64"; then
+      USE_IA64=1
+      AC_DEFINE(__IA64__)
+    fi
     DEFAULT_DEFAULT_wxUSE_GTK=1
   ;;
   *-*-irix5* | *-*-irix6* )