From a33441c4b274d840432ba553db463cbee1f1a480 Mon Sep 17 00:00:00 2001
From: Sage Weil <sage@newdream.net>
Date: Thu, 8 Oct 2009 14:21:08 -0700
Subject: [PATCH] byteorder: properly detect endianness

---
 src/include/byteorder.h | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/include/byteorder.h b/src/include/byteorder.h
index cdd003781dd76..d65493244ae17 100644
--- a/src/include/byteorder.h
+++ b/src/include/byteorder.h
@@ -31,11 +31,14 @@ static __inline__ __u64 swab64(__u64 val)
 }
 
 // mswab == maybe swab (if not LE)
-#if __BYTEORDER == __BIG_ENDIAN
+#if defined(__BIG_ENDIAN__) || defined(__BIG_ENDIAN)
 # define mswab64(a) swab64(a)
 # define mswab32(a) swab32(a)
 # define mswab16(a) swab16(a)
 #else
+# if !defined(__LITTLE_ENDIAN__) && !defined(__LITTLE_ENDIAN)
+#  warning unknown endianness, assuming little
+# endif
 # define mswab64(a) (a)
 # define mswab32(a) (a)
 # define mswab16(a) (a)
-- 
2.39.5