diff -up sysdefs.h.orig sysdefs.h
--- sysdefs.h.orig	2016-09-22 17:36:15.000000000 +0200
+++ sysdefs.h	2017-01-09 22:06:33.031675095 +0100
@@ -1322,6 +1322,102 @@ typedef unsigned int Card64;
 #define LOCALE_NLS
 #endif
 
+#ifdef __ia64__
+
+#define ARCHPRNAME "ia64"
+
+/*---------------------------------------------------------------------------*/
+/* Intel ia64 with Linux and GCC:                                            */
+   
+
+#ifdef __linux__
+#define ARCHSYSNAME "unknown-linux"
+#define DEFSMADE
+#define OPENRDMODE "r"
+#define OPENWRMODE "w"
+#define OPENUPMODE "r+"
+#define IEEEFLOAT
+typedef signed char Integ8;
+typedef unsigned char Card8;
+typedef signed short Integ16;
+typedef unsigned short Card16;
+#define HAS16
+typedef signed int Integ32;
+#define PRIInteg32 "d"
+typedef unsigned int Card32;
+typedef signed long long Integ64;
+typedef unsigned long long Card64;
+#define HAS64
+#define LOCALE_NLS
+#endif
+
+
+#endif /* __ia64__ */
+
+#if defined(__s390__) && !defined(__s390x__)
+
+#define ARCHPRNAME "S/390"
+
+/*---------------------------------------------------------------------------*/
+/* IBM S/390 with Linux and GCC:                                             */
+   
+
+#ifdef __linux__
+#define ARCHSYSNAME "unknown-linux"
+#define DEFSMADE
+#define OPENRDMODE "r"
+#define OPENWRMODE "w"
+#define OPENUPMODE "r+"
+#define IEEEFLOAT
+typedef signed char Integ8;
+typedef unsigned char Card8;
+typedef signed short Integ16;
+typedef unsigned short Card16;
+#define HAS16
+typedef signed int Integ32;
+#define PRIInteg32 "d"
+typedef unsigned int Card32;
+typedef signed long long Integ64;
+typedef unsigned long long Card64;
+#define HAS64
+#define LOCALE_NLS
+#endif
+
+
+#endif /* __s390__ */
+
+/*---------------------------------------------------------------------------*/
+/* IBM zSeries (S/390 G7) with Linux and GCC:                                             */
+ 
+#ifdef __s390x__
+
+#define ARCHPRNAME "IBM zSeries"
+
+#ifdef __linux__
+#define ARCHSYSNAME "unknown-linux"
+#define DEFSMADE
+#define OPENRDMODE "r"
+#define OPENWRMODE "w"
+#define OPENUPMODE "r+"
+#define IEEEFLOAT
+typedef signed char Integ8;
+typedef unsigned char Card8;
+typedef signed short Integ16;
+typedef unsigned short Card16;
+#define HAS16
+typedef signed int Integ32;
+#define PRIInteg32 "d"
+typedef unsigned int Card32;
+typedef signed long Integ64;
+typedef unsigned long Card64;
+#define HAS64
+#define LOCALE_NLS
+#endif
+
+
+#endif /* __s390x__ */
+
+
 /*===========================================================================*/
 /* Post-Processing: check for definition, add defaults */