py/mkrules.mk: Allow to override name of libmicropython.a

pfalcon · pfalcon · commit 1f61fe07a2bc · 2016-08-30T00:59:17.000+03:00
Or alternatively, refer to an exact library file, not just phony target
"lib".
diff --git a/py/mkrules.mk b/py/mkrules.mk
@@ -123,8 +123,9 @@ clean-prog:
 .PHONY: clean-prog
 endif
 
-lib: $(OBJ)
-	$(AR) rcs libmicropython.a $^
+LIBMICROPYTHON = libmicropython.a
+lib $(LIBMICROPYTHON): $(OBJ)
+	$(AR) rcs $(LIBMICROPYTHON) $^
 
 clean:
 	$(RM) -rf $(BUILD) $(CLEAN_EXTRA)
