Fix the SSE2-specific code for clang -- it differs from GCC in this. 
--- sha384.c	2009-06-18 05:14:35.000000000 -0400
+++ sha384.c	2014-04-27 17:15:13.000000000 -0400
@@ -131,6 +131,6 @@
 	#ifdef OPTIMIZE_SSE2 
 	
-	# if defined(_MSC_VER) || defined (__INTEL_COMPILER)
-	static const __m64 MASK = { 0x00FF00FF00FF00FF00 };
+	# if defined(_MSC_VER) || defined (__INTEL_COMPILER) || defined(__clang__)
+	static const __m64 MASK = { 0x00FF00FF00FF00FF };
 	# elif defined(__GNUC__)
 	static const __m64 MASK = { 0x00FF00FF, 0x00FF00FF };
--- sha512.c	2009-06-18 05:15:57.000000000 -0400
+++ sha512.c	2014-04-27 17:15:47.000000000 -0400
@@ -131,5 +131,5 @@
 {
 	#ifdef OPTIMIZE_SSE2
-	# if defined(_MSC_VER) || defined(__INTEL_COMPILER)
+	# if defined(_MSC_VER) || defined(__INTEL_COMPILER) || defined(__clang__)
 	static const __m64 MASK = { 0x00FF00FF00FF00FF };
 	# elif defined(__GNUC__)