--- /dev/null
+OS ?= FreeBSD
+#OS ?= NetBSD
+#OS ?= OpenBSD
+
+CFLAGS ?= -O2 -Wall
+CC ?= gcc
+
+.if $(OS) == "FreeBSD"
+CFLAGS += -DUSE_LIBUSB
+LIBS = -lusb
+.elif $(OS) == "NetBSD" || $(OS) == "OpenBSD"
+CFLAGS += -DUSE_UHID
+LIBS =
+.endif
+
+
+hid_bootloader_cli: hid_bootloader_cli.c
+ $(CC) $(CFLAGS) -s -o hid_bootloader_cli hid_bootloader_cli.c $(LIBS)
+
+clean:
+ rm -f hid_bootloader_cli