+ @($(MAKE) -C $(SRC_DIR) mrproper)
+ @($(MAKE) -C $(PREPROCESSOR_DIR) clean)
+ @($(MAKE) -C $(EXAMPLES_DIR) clean)
+
+test:
+ @$(MAKE) -C $(SINWAVE_DIR) clean
+ @$(MAKE) -C $(SINWAVE_DIR)
+
+ @echo " You might want to check the output file with either:"
+ @echo "audacity $(SINWAVE_DIR)/sin.wav"
+ @echo "open $(SINWAVE_DIR)/sin.wav"
+ @echo "octave -q --eval 'plot(wavread(\"$(SINWAVE_DIR)/sin.wav\")); pause'"
+
+examples::
+ @($(MAKE) -C $(EXAMPLES_DIR))