diff --git a/Makefile b/Makefile
index 0274830..6f7f512 100644
--- a/Makefile
+++ b/Makefile
@@ -3,17 +3,27 @@
 # License       : GPLv3
 # Authors       : Aoran Zeng <ccmywish@qq.com>
 # Created on    : <2023-08-28>
-# Last modified : <2023-09-05>
+# Last modified : <2023-09-06>
 # ---------------------------------------------------------------
 
-CFLAGS =
+CFLAGS = # -Wall
+
+ifeq ($(OS), Windows_NT)
+	CLANG_FLAGS = -target x86_64-pc-windows-gnu
+endif
 
 TARGET = chsrc
 #=======================
 
-all:
-	@echo Compile
-	@gcc chsrc.c $(CFLAGS) -o $(TARGET)
+all: echo
+ifeq ($(CC), clang)
+	@$(CC) chsrc.c $(CLANG_FLAGS) $(CFLAGS) -o $(TARGET)
+else
+	@$(CC) chsrc.c $(CFLAGS) -o $(TARGET)
+endif
+
+echo:
+	@echo Compile using \'$(CC)\' $(CFLAGS) on $(OS) ...
 
 test: $(TARGET)
 	./$(TARGET) list mirror
@@ -21,8 +31,8 @@ test: $(TARGET)
 	./$(TARGET) get  ruby
 	./$(TARGET) get  python
 
-test_xy:
-	@gcc test_xy.c -o xy
+xy:
+	@$(CC) test_xy.c -o xy
 	@./xy
 
 clean: