-PERIPH_LIBS=$(WXDIR)\lib\zlib.lib $(PERIPH_LIBS)
-PERIPH_TARGET=zlib $(PERIPH_TARGET)
-PERIPH_CLEAN_TARGET=clean_zlib $(PERIPH_CLEAN_TARGET)
+PERIPH_LIBS=$(WXDIR)\lib\zlib.lib $(WXDIR)\lib\winpng.lib $(PERIPH_LIBS)
+PERIPH_TARGET=zlib png $(PERIPH_TARGET)
+PERIPH_CLEAN_TARGET=clean_zlib clean_png $(PERIPH_CLEAN_TARGET)