$OpenBSD: patch-js_src_jscpucfg_h,v 1.1 2012/02/20 20:21:43 landry Exp $
https://bugzilla.mozilla.org/show_bug.cgi?id=714312
https://hg.mozilla.org/mozilla-central/rev/9cfdb612a026
--- js/src/jscpucfg.h.orig	Wed Jan 11 18:14:47 2012
+++ js/src/jscpucfg.h	Sat Jan 14 20:54:47 2012
@@ -92,6 +92,23 @@
 #error "endian.h does not define __BYTE_ORDER. Cannot determine endianness."
 #endif
 
+/* BSDs */
+#elif defined(JS_HAVE_MACHINE_ENDIAN_H)
+# include <sys/types.h>
+# include <machine/endian.h>
+
+# if defined(_BYTE_ORDER)
+#  if _BYTE_ORDER == _LITTLE_ENDIAN
+#   define IS_LITTLE_ENDIAN 1
+#   undef  IS_BIG_ENDIAN
+#  elif _BYTE_ORDER == _BIG_ENDIAN
+#   undef  IS_LITTLE_ENDIAN
+#   define IS_BIG_ENDIAN 1
+#  endif
+# else /* !defined(_BYTE_ORDER) */
+#  error "machine/endian.h does not define _BYTE_ORDER. Cannot determine endianness."
+# endif
+
 #elif defined(JS_HAVE_SYS_ISA_DEFS_H)
 #include <sys/isa_defs.h>
 
