system/ByteOrder: fix byte order detection on FreeBSD/aarch64

Patch from https://svnweb.freebsd.org/ports/head/audio/musicpd/files/patch-src_system_ByteOrder.hxx?revision=441921&view=co (with a tiny modification) Closes #59

system/ByteOrder: fix byte order detection on FreeBSD/aarch64
0a379fc5 · Max Kellermann · 445c11b8 · 0a379fc5 · 0a379fc5
Commit 0a379fc5 authored May 29, 2017 by Max Kellermann
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NEWS NEWS +1 -0

ByteOrder.hxx src/system/ByteOrder.hxx +9 -0

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--- a/NEWS
+++ b/NEWS
 ver 0.20.9 (not yet released)
+* fix byte order detection on FreeBSD/aarch64

 ver 0.20.8 (2017/05/19)
 * output

--- a/src/system/ByteOrder.hxx
+++ b/src/system/ByteOrder.hxx
@@ -52,6 +52,15 @@
 #    define IS_LITTLE_ENDIAN false
 #    define IS_BIG_ENDIAN true
 #  endif
+#elif defined(__BYTE_ORDER__)
+/* GCC-specific macros */
+#  if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
+#    define IS_LITTLE_ENDIAN true
+#    define IS_BIG_ENDIAN false
+#  else
+#    define IS_LITTLE_ENDIAN false
+#    define IS_BIG_ENDIAN true
+#  endif
 #else
 /* generic compile-time check */
 #  include <endian.h>