diff --git a/CMakeLists.txt b/CMakeLists.txt
index 7375f2d5..85ae87a4 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -9,7 +9,7 @@ add_definitions(-D_CRT_SECURE_NO_WARNINGS)
 #add_definitions(-pedantic)
 #add_definitions(-S)
 #add_definitions(-s)
-#add_definitions(-msse2)
+add_definitions(-msse2)
 #add_definitions(-m32)
 #add_definitions(-mfpmath=387)
 #add_definitions(-ffast-math)
diff --git a/glm/core/_detail.hpp b/glm/core/_detail.hpp
index d41fa7f8..8f8a1c55 100644
--- a/glm/core/_detail.hpp
+++ b/glm/core/_detail.hpp
@@ -332,7 +332,7 @@ namespace detail
 #	define GLM_ALIGNED_STRUCT(x) __declspec(align(x)) struct 
 #	define GLM_RESTRICT __declspec(restrict)
 #	define GLM_RESTRICT_VAR __restrict
-#elif((GLM_COMPILER & GLM_COMPILER_GCC) && (GLM_COMPILER >= GLM_COMPILER_GCC31))
+#elif((GLM_COMPILER & (GLM_COMPILER_GCC | GLM_COMPILER_LLVM_GCC)) && (GLM_COMPILER >= GLM_COMPILER_GCC31))
 #	define GLM_DEPRECATED __attribute__((__deprecated__))
 #	define GLM_ALIGN(x) __attribute__((aligned(x)))
 #	define GLM_ALIGNED_STRUCT(x) struct __attribute__((aligned(x)))
diff --git a/glm/core/setup.hpp b/glm/core/setup.hpp
index d4124369..619e7adc 100644
--- a/glm/core/setup.hpp
+++ b/glm/core/setup.hpp
@@ -343,7 +343,18 @@
 #	else
 #		define GLM_ARCH GLM_ARCH_PURE
 #	endif
+#elif(GLM_COMPILER & GLM_COMPILER_LLVM_GCC)
+#	if(defined(__AVX__))
+#		define GLM_ARCH GLM_ARCH_AVX
+#	elif(defined(__SSE3__))
+#		define GLM_ARCH GLM_ARCH_SSE3
+#	elif(defined(__SSE2__))
+#		define GLM_ARCH GLM_ARCH_SSE2
+#	else
+#		define GLM_ARCH GLM_ARCH_PURE
+#	endif
 #elif((GLM_COMPILER & GLM_COMPILER_GCC) && (defined(__i386__) || defined(__x86_64__)))
+#   error "GCC"
 #	if(defined(__AVX__))
 #		define GLM_ARCH GLM_ARCH_AVX
 #	elif(defined(__SSE3__))
diff --git a/glm/gtx/simd_vec4.hpp b/glm/gtx/simd_vec4.hpp
index 3384e9e1..05fb99ec 100644
--- a/glm/gtx/simd_vec4.hpp
+++ b/glm/gtx/simd_vec4.hpp
@@ -33,7 +33,7 @@ namespace detail
 {
 	/// 4-dimensional vector implemented using SIMD SEE intrinsics.
 	/// \ingroup gtx_simd_vec4
-	GLM_ALIGNED_STRUCT(4) fvec4SIMD
+	GLM_ALIGNED_STRUCT(16) fvec4SIMD
 	{
 		enum ctor{null};
 		typedef __m128 value_type;
@@ -114,7 +114,7 @@ namespace detail
 namespace gtx{
 namespace simd_vec4 ///< GLM_GTX_simd_vec4 extension: SIMD implementation of vec4 type.
 {
-	typedef detail::fvec4SIMD simdVec4;
+	typedef glm::detail::fvec4SIMD simdVec4;
 
 	/// \addtogroup gtx_simd_vec4
 	///@{