-Screwed around with SSE2.

-Added ReleaseSSE2 as a build target.
-LL_VECTORIZE is silly and breaks things...
-Small little tweaks.

I have not tested if the cmake alterations work under linux and darwin. Hollar if broken.

indra/newview/llviewerjointmesh_sse2.cpp

@@ -59,7 +59,7 @@
 #include "v3math.h"
 
 
-#if LL_VECTORIZE
+#if LL_VECTORIZE && (_M_IX86_FP > 1 || defined(__SSE2__) ) //These intrinsics are only valid with sse2 or higher.
 
 
 inline void matrix_translate(LLV4Matrix4& m, const LLMatrix4* w, const LLVector3& j)
@@ -116,6 +116,10 @@ void LLViewerJointMesh::updateGeometrySSE2(LLFace *face, LLPolyMesh *mesh)
 	
 	//setBuffer(0) called in LLVOAvatar::renderSkinned
 }
+bool LLViewerJointMesh::supportsSSE2()
+{
+	return true;
+}
 
 #else
 
@@ -123,5 +127,9 @@ void LLViewerJointMesh::updateGeometrySSE2(LLFace *face, LLPolyMesh *mesh)
 {
 	LLViewerJointMesh::updateGeometryVectorized(face, mesh);
 }
+bool LLViewerJointMesh::supportsSSE2()
+{
+	return false;
+}
 
 #endif