From bb58442054adbc502e54df0ce31516927da0b715 Mon Sep 17 00:00:00 2001
From: bwelling <bwelling@xbill.org>
Date: Thu, 21 Feb 2019 13:45:11 -0800
Subject: [PATCH] Improve endian detection. (#5204)

Add support for using __BYTE_ORDER__, to support platforms where g++
doesn't explicitly define __BIG_ENDIAN__, like Solaris Sparc.
---
 include/flatbuffers/base.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/include/flatbuffers/base.h b/include/flatbuffers/base.h
index 295c7f67b..3e6afc69c 100644
--- a/include/flatbuffers/base.h
+++ b/include/flatbuffers/base.h
@@ -118,7 +118,8 @@
 #endif // __s390x__
 #if !defined(FLATBUFFERS_LITTLEENDIAN)
   #if defined(__GNUC__) || defined(__clang__)
-    #ifdef __BIG_ENDIAN__
+    #if (defined(__BIG_ENDIAN__) || \
+         (defined(__BYTE_ORDER__) && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__))
       #define FLATBUFFERS_LITTLEENDIAN 0
     #else
       #define FLATBUFFERS_LITTLEENDIAN 1