Add lattice index builder to makefile

Makefile

@@ -781,6 +781,7 @@ HTKDESERIALIZERS_SRC =\
 	$(SOURCEDIR)/Readers/HTKDeserializers/Exports.cpp \
 	$(SOURCEDIR)/Readers/HTKDeserializers/HTKDeserializer.cpp \
 	$(SOURCEDIR)/Readers/HTKDeserializers/LatticeDeserializer.cpp \
+	$(SOURCEDIR)/Readers/HTKDeserializers/LatticeIndexBuilder.cpp \
 	$(SOURCEDIR)/Readers/HTKDeserializers/HTKMLFReader.cpp \
 	$(SOURCEDIR)/Readers/HTKDeserializers/MLFDeserializer.cpp \
 	$(SOURCEDIR)/Readers/HTKDeserializers/MLFIndexBuilder.cpp \