--- src/common_interface.old.c	2010-07-12 00:32:05.000000000 -0400
+++ src/common_interface.c		2012-05-21 17:04:32.000000000 -0400
@@ -52,7 +52,6 @@
 #endif /* linux */
 
 #elif defined(__sun)
-
 #include <sys/byteorder.h>
 
 #ifdef _BIG_ENDIAN
@@ -67,6 +66,21 @@
 # define HTOLE_32(x)   (x)
 #endif /* Solaris */
 
+#elif defined(__APPLE__)
+#include <libkern/OSByteOrder.h>
+
+#ifdef __BIG_ENDIAN__
+# define LETOH_16(x)	OSSwapInt16(x)
+# define HTOLE_16(x)	OSSwapInt16(x)
+# define LETOH_32(x)	OSSwapInt32(x)
+# define HTOLE_32(x)	OSSwapInt32(x)
+#else
+# define LETOH_16(x)   (x)
+# define HTOLE_16(x)   (x)
+# define LETOH_32(x)   (x)
+# define HTOLE_32(x)   (x)
+#endif /* Apple */
+
 #else
 
 #include <sys/endian.h>