--- tcsh-6.13.00/host.defs.arch	2003-02-08 21:03:25.000000000 +0100
+++ tcsh-6.13.00/host.defs	2004-09-15 18:32:39.770032216 +0200
@@ -438,11 +438,21 @@
 newdef	: defined(linux)
 comment	: Linus Torvalds's linux
 vendor	: defined(M_intel)				: "intel"
+hosttype: defined(__ia64__)				: "ia64-linux"
+hosttype: defined(__powerpc64__)			: "powerpc64-linux"
+hosttype: defined(__s390x__)				: "s390x-linux"
+hosttype: defined(__s390__)				: "s390-linux"
+hosttype: defined(__x86_64__)				: "x86_64-linux"
 hosttype: defined(M_i586) 				: "i586-linux"
 hosttype: defined(M_i486) 				: "i486-linux"
 hosttype: defined(M_i386)				: "i386-linux"
 ostype	: !defined(PPC) 				: "linux"
 ostype	: defined(PPC)					: "mklinux"
+machtype: defined(__ia64__)				: "ia64"
+machtype: defined(__powerpc64__)			: "powerpc64"
+machtype: defined(__s390x__)				: "s390x"
+machtype: defined(__s390__)				: "s390"
+machtype: defined(__x86_64__)				: "x86_64"
 machtype: defined(M_i586) 				: "i586"
 machtype: defined(M_i486) 				: "i486"
 machtype: defined(M_i386)				: "i386"