X-Git-Url: http://git.linex4red.de/pub/USBasp.git/blobdiff_plain/9c590e41d716e7afb9bd45a86e811a6a58096771..599c84ef264b8c2c97547f8173afd0b68c8b103c:/Bootloaders/HID/makefile

diff --git a/Bootloaders/HID/makefile b/Bootloaders/HID/makefile
index 02b884a31..6589d75aa 100644
--- a/Bootloaders/HID/makefile
+++ b/Bootloaders/HID/makefile
@@ -1,6 +1,6 @@
 #
 #             LUFA Library
-#     Copyright (C) Dean Camera, 2012.
+#     Copyright (C) Dean Camera, 2014.
 #
 #  dean [at] fourwalledcubicle [dot] com
 #           www.lufa-lib.org
@@ -29,10 +29,11 @@ LD_FLAGS     = -Wl,--section-start=.text=$(BOOT_START_OFFSET)
 FLASH_SIZE_KB        := 128
 BOOT_SECTION_SIZE_KB := 8
 
-# Bootloader address calculation formulas (requires the "bc" unix utility)
-# Do not modify these macros, but rather modify the depedant values above.
-BOOT_START_OFFSET     = 0x$(shell echo "obase=16; ($(FLASH_SIZE_KB) - $(BOOT_SECTION_SIZE_KB)) * 1024" | bc)
-BOOT_SEC_OFFSET       = 0x$(shell echo "obase=16; (($(FLASH_SIZE_KB) * 1024) - $(strip $(1)))" | bc)
+# Bootloader address calculation formulas
+# Do not modify these macros, but rather modify the dependent values above.
+CALC_ADDRESS_IN_HEX   = $(shell printf "0x%X" $$(( $(1) )) )
+BOOT_START_OFFSET     = $(call CALC_ADDRESS_IN_HEX, ($(FLASH_SIZE_KB) - $(BOOT_SECTION_SIZE_KB)) * 1024 )
+BOOT_SEC_OFFSET       = $(call CALC_ADDRESS_IN_HEX, ($(FLASH_SIZE_KB) * 1024) - ($(strip $(1))) )
 
 # Default target
 all: