From 224817e2a81912b46453a96b9eec4804856c801b Mon Sep 17 00:00:00 2001
From: Dimitri John Ledkov <xnox@ubuntu.com>
Date: Wed, 16 Mar 2016 21:32:08 +0000
Subject: [PATCH] Add support for s390[x].

Signed-off-by: Dimitri John Ledkov <xnox@ubuntu.com>
Signed-off-by: Richard Yao <ryao@gentoo.org>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #537
---
 include/sys/isa_defs.h | 16 +++++++++++++++-
 1 file changed, 15 insertions(+), 1 deletion(-)

diff --git a/include/sys/isa_defs.h b/include/sys/isa_defs.h
index 7e15b9321..3d474872c 100644
--- a/include/sys/isa_defs.h
+++ b/include/sys/isa_defs.h
@@ -131,7 +131,21 @@
 #define _BIG_ENDIAN
 #define _SUNOS_VTOC_16
 
-#else /* Currently x86_64, i386, arm, powerpc, and sparc are supported */
+/* s390 arch specific defines */
+#elif defined(__s390__)
+#if defined(__s390x__)
+#if !defined(_LP64)
+#define	_LP64
+#endif
+#else
+#if !defined(_ILP32)
+#define	_ILP32
+#endif
+#endif
+
+#define	_BIG_ENDIAN
+
+#else /* Currently x86_64, i386, arm, powerpc, s390, and sparc are supported */
 #error "Unsupported ISA type"
 #endif