From: Sebastian Pop <s.pop@samsung.com>
Date: Tue, 11 Dec 2018 21:24:00 +0000 (-0600)
Subject: check endianness of target architecture with preprocessor
X-Git-Tag: 1.9.9-b1~592
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d2b1476776066143ce4bd9a1672c9f88baf83198;p=thirdparty%2Fzlib-ng.git

check endianness of target architecture with preprocessor
---

diff --git a/gzendian.h b/gzendian.h
index 92da573ba..3b02f57b6 100644
--- a/gzendian.h
+++ b/gzendian.h
@@ -5,7 +5,16 @@
 #ifndef ENDIAN_H_
 #define ENDIAN_H_
 
-#ifdef __MINGW32__
+/* First check whether the compiler knows the target __BYTE_ORDER__. */
+#if defined(__BYTE_ORDER__)
+# if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
+#  define LITTLE_ENDIAN __ORDER_LITTLE_ENDIAN__
+#  define BYTE_ORDER LITTLE_ENDIAN
+# elif __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
+#  define BIG_ENDIAN __ORDER_BIG_ENDIAN__
+#  define BYTE_ORDER BIG_ENDIAN
+# endif
+#elif defined(__MINGW32__)
 # include <sys/param.h>
 #elif defined(WIN32) || defined(_WIN32)
 # define LITTLE_ENDIAN 1234