closes https://github.com/assimp/assimp/issues/1319: fix build without

3DS.

code/ASELoader.cpp

@@ -46,6 +46,8 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 #ifndef ASSIMP_BUILD_NO_ASE_IMPORTER
 
+#ifndef ASSIMP_BUILD_NO_3DS_IMPORTER
+
 // internal headers
 #include "ASELoader.h"
 #include "StringComparison.h"
@@ -1320,4 +1322,6 @@ bool ASEImporter::GenerateNormals(ASE::Mesh& mesh)  {
     return false;
 }
 
+#endif // ASSIMP_BUILD_NO_3DS_IMPORTER
+
 #endif // !! ASSIMP_BUILD_NO_BASE_IMPORTER