google3/third_party/grte/v4_src/glibc-2.19/sysdeps/x86/bits/endian.h - GRTEv4 - Git at Google

 /* i386/x86_64 are little-endian.  */

 #ifndef _ENDIAN_H
 # error "Never use <bits/endian.h> directly; include <endian.h> instead."
 #endif

 #define __BYTE_ORDER __LITTLE_ENDIAN
	/* i386/x86_64 are little-endian. */

	#ifndef _ENDIAN_H
	# error "Never use <bits/endian.h> directly; include <endian.h> instead."
	#endif

	#define __BYTE_ORDER __LITTLE_ENDIAN