Fixes for build with mingw (no warnings in 32 Bit build, even with -wall).

SMD bugfix.
Makefile is up to date now.
Added pack-attribute for aiVector3D and aiVector2D. 

git-svn-id: https://assimp.svn.sourceforge.net/svnroot/assimp/trunk@132 67173fc5-114c-0410-ac8e-9d2fd5bffc1f

code/aiAssert.cpp

@@ -24,4 +24,4 @@ void Assimp::aiAssert (bool expression, const std::string &message, unsigned int
 		exit (1);
 #endif
 	}
-}
+}