From: Sage Weil <sage@newdream.net>
Date: Thu, 8 Oct 2009 21:21:08 +0000 (-0700)
Subject: byteorder: properly detect endianness
X-Git-Tag: v0.17~106
X-Git-Url: http://git-server-git.apps.pok.os.sepia.ceph.com/?a=commitdiff_plain;h=a33441c4b274d840432ba553db463cbee1f1a480;p=ceph.git

byteorder: properly detect endianness
---

diff --git a/src/include/byteorder.h b/src/include/byteorder.h
index cdd003781dd..d65493244ae 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)