git subrepo clone https://github.com/libopencm3/libopencm3.git

subrepo:
  subdir:   "libopencm3"
  merged:   "88e91c9a7cce"
upstream:
  origin:   "https://github.com/libopencm3/libopencm3.git"
  branch:   "master"
  commit:   "88e91c9a7cce"
git-subrepo:
  version:  "0.4.3"
  origin:   "???"
  commit:   "???"

libopencm3/lib/efm32/lg/Makefile

@@ -0,0 +1,66 @@
+##
+## This file is part of the libopencm3 project.
+##
+## Copyright (C) 2009 Uwe Hermann <uwe@hermann-uwe.de>
+## Copyright (C) 2012 chrysn <chrysn@fsfe.org>
+## Copyright (C) 2015 Kuldeep Singh Dhaka <kuldeepdhaka9@gmail.com>
+##
+## This library is free software: you can redistribute it and/or modify
+## it under the terms of the GNU Lesser General Public License as published by
+## the Free Software Foundation, either version 3 of the License, or
+## (at your option) any later version.
+##
+## This library is distributed in the hope that it will be useful,
+## but WITHOUT ANY WARRANTY; without even the implied warranty of
+## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+## GNU Lesser General Public License for more details.
+##
+## You should have received a copy of the GNU Lesser General Public License
+## along with this library. If not, see <http://www.gnu.org/licenses/>.
+##
+
+LIBNAME		= libopencm3_efm32lg
+SRCLIBDIR	?= ../..
+FAMILY		= EFM32LG
+
+CC		= $(PREFIX)gcc
+AR		= $(PREFIX)ar
+TGT_CFLAGS	= -Os \
+		  -Wall -Wextra -Wimplicit-function-declaration \
+		  -Wredundant-decls -Wmissing-prototypes -Wstrict-prototypes \
+		  -Wundef -Wshadow \
+		  -I../../../include -fno-common \
+		  -mcpu=cortex-m3 $(FP_FLAGS) -mthumb -Wstrict-prototypes \
+		  -ffunction-sections -fdata-sections -MD -D$(FAMILY)
+TGT_CFLAGS      += $(DEBUG_FLAGS)
+TGT_CFLAGS	+= $(STANDARD_FLAGS)
+# ARFLAGS	= rcsv
+ARFLAGS		= rcs
+
+OBJS += acmp_common.o
+OBJS += adc_common.o
+OBJS += burtc_common.o
+OBJS += cmu_common.o
+OBJS += dac_common.o
+OBJS += dma_common.o
+OBJS += emu_common.o
+OBJS += gpio_common.o
+OBJS += i2c_common.o
+OBJS += letimer_common.o
+OBJS += msc_common.o
+OBJS += prs_common.o
+OBJS += rmu_common.o
+OBJS += rtc_common.o
+OBJS += timer_common.o
+OBJS += usart_common.o
+OBJS += wdog_common.o
+
+OBJS += usb.o usb_control.o usb_standard.o usb_msc.o
+OBJS += usb_hid.o
+OBJS += usb_audio.o usb_cdc.o usb_midi.o
+OBJS += usb_efm32.o
+
+VPATH += ../../usb:../:../../cm3:../common
+
+include ../../Makefile.include
+