diff -ru glm/glm/gtc/packing.inl glm-aliasfix/glm/gtc/packing.inl
--- glm/glm/gtc/packing.inl	2014-02-08 21:28:22.000000000 +0200
+++ glm-aliasfix/glm/gtc/packing.inl	2014-06-11 12:29:07.345452993 +0300
@@ -35,6 +35,26 @@
 namespace glm{
 namespace detail
 {
+	GLM_FUNC_QUALIFIER float float_from_bits_of_uint(uint const u)
+	{
+		union {
+			float as_float;
+			uint as_uint;
+		} result;
+		result.as_uint = u;
+		return result.as_float;
+	}
+
+	GLM_FUNC_QUALIFIER glm::uint uint_from_bits_of_float(float const f)
+	{
+		union {
+			float as_float;
+			uint as_uint;
+		} result;
+		result.as_float = f;
+		return result.as_uint;
+	}
+
 	GLM_FUNC_QUALIFIER glm::uint16 float2half(glm::uint32 const & f)
 	{
 		// 10 bits    =>                         EE EEEFFFFF
@@ -145,7 +165,7 @@
 		else if(glm::isinf(x))
 			return 0x1f << 6;
 
-		return float2packed11(reinterpret_cast<uint&>(x));
+		return float2packed11(uint_from_bits_of_float(x));
 	}
 
 	GLM_FUNC_QUALIFIER float packed11bitToFloat(glm::uint x)
@@ -158,7 +178,7 @@
 			return ~0;//Inf
 
 		uint result = packed11ToFloat(x);
-		return reinterpret_cast<float&>(result);
+		return float_from_bits_of_uint(result);
 	}
 
 	GLM_FUNC_QUALIFIER glm::uint floatTo10bit(float x)
@@ -170,7 +190,7 @@
 		else if(glm::isinf(x))
 			return 0x1f << 5;
 
-		return float2packed10(reinterpret_cast<uint&>(x));
+		return float2packed10(uint_from_bits_of_float(x));
 	}
 
 	GLM_FUNC_QUALIFIER float packed10bitToFloat(glm::uint x)
@@ -183,7 +203,7 @@
 			return ~0;//Inf
 
 		uint result = packed10ToFloat(x);
-		return reinterpret_cast<float&>(result);
+		return float_from_bits_of_uint(result);
 	}
 
 //	GLM_FUNC_QUALIFIER glm::uint f11_f11_f10(float x, float y, float z)