diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..02fb069
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,12 @@
+CC = gcc
+CFLAGS = -Wall -pedantic -ansi
+LDFLAGS = -lm
+BIN = graph.exe
+OBJ = errors.o lex.o main.o math_functions.o parser.o ps_graph.o tree.o
+
+%.o: %.c
+	$(CC) -c $(CFLAGS) $< -o $@
+
+$(BIN): $(OBJ)
+	$(CC) $(LDFLAGS) $^ -o $@
+
diff --git a/Makefile.win b/Makefile.win
new file mode 100644
index 0000000..5ae7d9d
--- /dev/null
+++ b/Makefile.win
@@ -0,0 +1,9 @@
+BIN = graph.exe
+OBJ = errors.o lex.o main.o parser.o ps_graph.o tree.o
+
+.c.obj:
+	cl $< /c
+
+$(BIN): $(OBJ)
+	cl $(OBJ) /Fe$(BIN)
+