Origin: Void Linux

--- a/src/util/u_endian.h	2017-12-21 18:31:22.000000000 +0100
+++ b/src/util/u_endian.h	2017-12-26 09:22:52.597199480 +0100
@@ -68,6 +68,16 @@
 
 #define PIPE_ARCH_LITTLE_ENDIAN
 
+#else
+/* Musl libc */
+#include <endian.h>
+
+#if __BYTE_ORDER == __LITTLE_ENDIAN
+# define PIPE_ARCH_LITTLE_ENDIAN
+#elif __BYTE_ORDER == __BIG_ENDIAN
+# define PIPE_ARCH_BIG_ENDIAN
+#endif
+
 #endif
 
 #endif