Index: lib/builtins/int_endianness.h
===================================================================
--- lib/builtins/int_endianness.h
+++ lib/builtins/int_endianness.h
@@ -85,15 +85,14 @@
 /* .. */
 
 #if defined(__linux__)
-#include <endian.h>
 
-#if __BYTE_ORDER == __BIG_ENDIAN
+#if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
 #define _YUGA_LITTLE_ENDIAN 0
 #define _YUGA_BIG_ENDIAN    1
-#elif __BYTE_ORDER == __LITTLE_ENDIAN
+#elif __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
 #define _YUGA_LITTLE_ENDIAN 1
 #define _YUGA_BIG_ENDIAN    0
-#endif /* __BYTE_ORDER */
+#endif /* __BYTE_ORDER__ */
 
 #endif /* GNU/Linux */