- extract MaterialHelper and move all of its members to aiMaterial in /include.

- pull in IOhannes' patch to set the gcc default visibility for all symbols to NO and to mark ASSIMP_API with __attribute__ ((visibility("default"))).
- drop unneeded ASSIMP_API from most internal classes in /code, we just need to keep some exports on Windows to keep AssimpView alive.

git-svn-id: https://assimp.svn.sourceforge.net/svnroot/assimp/trunk@1066 67173fc5-114c-0410-ac8e-9d2fd5bffc1f

code/3DSConverter.cpp

@@ -182,7 +182,7 @@ void Discreet3DSImporter::MakeUnique(D3DS::Mesh& sMesh)
 
 // ------------------------------------------------------------------------------------------------
 // Convert a 3DS texture to texture keys in an aiMaterial
-void CopyTexture(MaterialHelper& mat, D3DS::Texture& texture, aiTextureType type)
+void CopyTexture(aiMaterial& mat, D3DS::Texture& texture, aiTextureType type)
 {
 	// Setup the texture name
 	aiString tex;
@@ -214,7 +214,7 @@ void CopyTexture(MaterialHelper& mat, D3DS::Texture& texture, aiTextureType type
 // ------------------------------------------------------------------------------------------------
 // Convert a 3DS material to an aiMaterial
 void Discreet3DSImporter::ConvertMaterial(D3DS::Material& oldMat,
-	MaterialHelper& mat)
+	aiMaterial& mat)
 {
 	// NOTE: Pass the background image to the viewer by bypassing the
 	// material system. This is an evil hack, never do it again!
@@ -813,7 +813,7 @@ void Discreet3DSImporter::ConvertScene(aiScene* pcOut)
 	//  ... and convert the 3DS materials to aiMaterial's
 	for (unsigned int i = 0; i < pcOut->mNumMaterials;++i)
 	{
-		MaterialHelper* pcNew = new MaterialHelper();
+		aiMaterial* pcNew = new aiMaterial();
 		ConvertMaterial(mScene->mMaterials[i],*pcNew);
 		pcOut->mMaterials[i] = pcNew;
 	}