Makefile for Windows + Unix; and some new function for LinkedList

Makefile

@@ -7,16 +7,26 @@ TARGET = main
 SOURCES = $(wildcard $(SRCDIR)/*.c)
 OBJECTS = $(patsubst $(SRCDIR)/%.c, $(BUILDDIR)/%.o, $(SOURCES))
 
-all: $(BUILDDIR)/$(TARGET)
+ifeq ($(OS),Windows_NT)
+    EXECUTABLE = $(BUILDDIR)/$(TARGET).exe
+    RM = del /Q
+    MKDIR = mkdir
+else
+    EXECUTABLE = $(BUILDDIR)/$(TARGET)
+    RM = rm -f
+    MKDIR = mkdir -p
+endif
 
-$(BUILDDIR)/$(TARGET): $(OBJECTS)
+all: $(EXECUTABLE)
+
+$(EXECUTABLE): $(OBJECTS)
 	$(CC) $(CFLAGS) -o $@ $^
 
 $(BUILDDIR)/%.o: $(SRCDIR)/%.c
-	@mkdir -p $(BUILDDIR)
+	$(MKDIR) $(BUILDDIR)
 	$(CC) $(CFLAGS) -c -o $@ $<
 
 clean:
-	rm -rf $(BUILDDIR)/*
+	$(RM) $(BUILDDIR)/*
 
 .PHONY: clean