diff --git a/ChangeLog.txt b/ChangeLog.txt
index 8c0411cb..ae784464 100644
--- a/ChangeLog.txt
+++ b/ChangeLog.txt
@@ -1,3 +1,10 @@
+1.4.0
+=====
+
+[1] Fixed a build issue on OS X PowerPC platforms (md5cmp failed to build
+because OS X does not provide the le32toh() and htole32() functions.)
+
+
 1.3.90 (1.4 beta1)
 ==================
 
diff --git a/md5/md5.c b/md5/md5.c
index 7193e95b..b30df974 100644
--- a/md5/md5.c
+++ b/md5/md5.c
@@ -38,6 +38,15 @@ static void MD5Transform(unsigned int [4], const unsigned char [64]);
 #define Decode memcpy
 #else 
 
+/*
+ * OS X doesn't have le32toh() or htole32()
+ */
+#ifdef __APPLE__
+#include <libkern/OSByteOrder.h>
+#define le32toh(x) OSSwapLittleToHostInt32(x)
+#define htole32(x) OSSwapHostToLittleInt32(x)
+#endif
+
 /*
  * Encodes input (unsigned int) into output (unsigned char). Assumes len is
  * a multiple of 4.