diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..1951173
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,10 @@
+lxrtotp: lxrtotp.c
+	$(CC) -Wall -o $@ $<
+portable: lxrtotp.c
+	gcc -static -Wall -o $@ $<
+totp: lxrtotp.c
+	gcc -Wall -o $@ $<
+totp_small: lxrtotp.c
+	gcc -O -Wall -o totp_small lxrtotp.c
+totp_small_static: lxrtotp.c
+	gcc -static -O -Wall -o totp_small_static lxrtotp.c