X-Git-Url: https://git.friedersdorff.com/?a=blobdiff_plain;f=keyboard%2Fhhkb%2FMakefile;h=4bbfdb805d9da67f4b239fad359ad56d2a3cfe69;hb=81a0d946601b22475209ba1f33a9d167b56dcfe4;hp=1146d5ec86ff2e581a4ebbd3bf9ed76640ee0a96;hpb=39d4f923cded1dd8f46a03ed757390a77f45e2c4;p=max%2Ftmk_keyboard.git

diff --git a/keyboard/hhkb/Makefile b/keyboard/hhkb/Makefile
index 1146d5ec..4bbfdb80 100644
--- a/keyboard/hhkb/Makefile
+++ b/keyboard/hhkb/Makefile
@@ -39,27 +39,27 @@
 #----------------------------------------------------------------------------
 
 # Target file name (without extension).
-TARGET = hhkb_lufa
+TARGET ?= hhkb_lufa
 
 # Directory common source filess exist
-TMK_DIR = ../../tmk_core
+TMK_DIR ?= ../../tmk_core
 
 # Directory keyboard dependent files exist
-TARGET_DIR = .
+TARGET_DIR ?= .
 
 
 # List C source files here. (C dependencies are automatically generated.)
-SRC +=	matrix.c \
+SRC ?=	matrix.c \
 	led.c
 
-CONFIG_H = config.h
+CONFIG_H ?= config.h
 
 
 # MCU name
 # PJRC Teensy++ 2.0
 #MCU = at90usb1286
 # TMK Alt Controller or PJRC Teensy 2.0
-MCU = atmega32u4
+MCU ?= atmega32u4
 
 # Processor frequency.
 #     This will define a symbol, F_CPU, in all source code files equal to the
@@ -72,14 +72,14 @@ MCU = atmega32u4
 #     does not *change* the processor frequency - it should merely be updated to
 #     reflect the processor speed set externally so that the code can use accurate
 #     software delays.
-F_CPU = 16000000
+F_CPU ?= 16000000
 
 
 #
 # LUFA specific
 #
 # Target architecture (see library "Board Types" documentation).
-ARCH = AVR8
+ARCH ?= AVR8
 
 # Input clock frequency.
 #     This will define a symbol, F_USB, in all source code files equal to the
@@ -92,7 +92,7 @@ ARCH = AVR8
 #
 #     If no clock division is performed on the input clock inside the AVR (via the
 #     CPU clock adjust registers or the clock division fuses), this will be equal to F_CPU.
-F_USB = $(F_CPU)
+F_USB ?= $(F_CPU)
 
 # Interrupt driven control endpoint task
 #OPT_DEFS += -DINTERRUPT_CONTROL_ENDPOINT