diff -urN vegastrike-0.4.2.orig/src/posh.h vegastrike-0.4.2/src/posh.h
--- vegastrike-0.4.2.orig/src/posh.h	2003-10-23 13:51:58.000000000 -0400
+++ vegastrike-0.4.2/src/posh.h	2004-11-22 17:40:07.000000000 -0500
@@ -536,6 +536,17 @@
 #  endif
 #endif
 
+/* ------------------------------------------------------------------
+** IBM S/390
+** ------------------------------------------------------------------
+*/
+#if defined __s390__ || defined FORCE_DOXYGEN
+#  define POSH_CPU_S390/**<if defined, target CPU is IBM S/390 */
+#  if !defined FORCE_DOXYGEN
+#     define POSH_CPU_STRING "S/390"
+#  endif
+#endif
+
 /** @} */
 
 #if !defined POSH_CPU_STRING