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https://github.com/brain-hackers/u-boot-brain
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Several source files need to be compiled and linked when one or more config options are selected. To allow for easy selection in the Makefiles yet to avoild multiple compilation (which costs build time) and especially multiple linking (which causes errors), we use "COBJS = $(sort COBJS-y)" which eliminates duplicates. By courtesy of Detlev Zundel who suggested this approach. Signed-off-by: Wolfgang Denk <wd@denx.de>
79 lines
2.5 KiB
Makefile
79 lines
2.5 KiB
Makefile
#
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# (C) Copyright 2001-2006
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# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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#
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# See file CREDITS for list of people who contributed to this
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# project.
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License as
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# published by the Free Software Foundation; either version 2 of
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# the License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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# MA 02111-1307 USA
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#
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include $(TOPDIR)/config.mk
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#CFLAGS += -DDEBUG
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LIB = $(obj)librtc.a
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COBJS-$(CONFIG_RTC_BFIN) += bfin_rtc.o
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COBJS-y += date.o
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COBJS-$(CONFIG_RTC_DS12887) += ds12887.o
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COBJS-$(CONFIG_RTC_DS1302) += ds1302.o
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COBJS-$(CONFIG_RTC_DS1306) += ds1306.o
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COBJS-$(CONFIG_RTC_DS1307) += ds1307.o
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COBJS-$(CONFIG_RTC_DS1338) += ds1307.o
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COBJS-$(CONFIG_RTC_DS1337) += ds1337.o
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COBJS-$(CONFIG_RTC_DS1374) += ds1374.o
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COBJS-$(CONFIG_RTC_DS1556) += ds1556.o
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COBJS-$(CONFIG_RTC_DS164x) += ds164x.o
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COBJS-$(CONFIG_RTC_DS174x) += ds174x.o
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COBJS-$(CONFIG_RTC_DS3231) += ds3231.o
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COBJS-$(CONFIG_RTC_ISL1208) += isl1208.o
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COBJS-$(CONFIG_RTC_M41T11) += m41t11.o
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COBJS-$(CONFIG_RTC_M41T60) += m41t60.o
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COBJS-$(CONFIG_RTC_M41T62) += m41t62.o
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COBJS-$(CONFIG_RTC_M48T35A) += m48t35ax.o
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COBJS-$(CONFIG_RTC_MAX6900) += max6900.o
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COBJS-$(CONFIG_RTC_MC13783) += mc13783-rtc.o
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COBJS-$(CONFIG_RTC_MC146818) += mc146818.o
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COBJS-$(CONFIG_MCFRTC) += mcfrtc.o
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COBJS-$(CONFIG_RTC_MK48T59) += mk48t59.o
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COBJS-$(CONFIG_RTC_MPC5200) += mpc5xxx.o
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COBJS-$(CONFIG_RTC_MPC8xx) += mpc8xx.o
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COBJS-$(CONFIG_RTC_PCF8563) += pcf8563.o
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COBJS-$(CONFIG_RTC_PL031) += pl031.o
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COBJS-$(CONFIG_RTC_RS5C372A) += rs5c372.o
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COBJS-$(CONFIG_RTC_RX8025) += rx8025.o
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COBJS-$(CONFIG_RTC_S3C24X0) += s3c24x0_rtc.o
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COBJS-$(CONFIG_RTC_X1205) += x1205.o
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COBJS := $(sort COBJS-y)
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SRCS := $(COBJS:.o=.c)
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OBJS := $(addprefix $(obj),$(COBJS))
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all: $(LIB)
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$(LIB): $(obj).depend $(OBJS)
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$(AR) $(ARFLAGS) $@ $(OBJS)
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#########################################################################
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# defines $(obj).depend target
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include $(SRCTREE)/rules.mk
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sinclude $(obj).depend
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#########################################################################
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