diff -up assimp-3.3.1/code/ByteSwapper.h.than assimp-3.3.1/code/ByteSwapper.h
diff -up assimp-3.3.1/code/glTFAsset.inl.than assimp-3.3.1/code/glTFAsset.inl
--- assimp-3.3.1/code/glTFAsset.inl.than	2017-05-05 17:28:29.754976483 -0400
+++ assimp-3.3.1/code/glTFAsset.inl	2017-05-05 17:28:52.995404721 -0400
@@ -40,6 +40,7 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 
 #include "StringUtils.h"
 
+using namespace Assimp;
 namespace glTF {
 
 namespace {
