From f93286397ed2a7084efb0362a43ee09f11702349 Mon Sep 17 00:00:00 2001 From: Marian Balakowicz Date: Fri, 1 Sep 2006 19:49:50 +0200 Subject: Add support for a saving build objects in a separate directory. Modifications are based on the linux kernel approach and support two use cases: 1) Add O= to the make command line 'make O=/tmp/build all' 2) Set environement variable BUILD_DIR to point to the desired location 'export BUILD_DIR=/tmp/build' 'make' The second approach can also be used with a MAKEALL script 'export BUILD_DIR=/tmp/build' './MAKEALL' Command line 'O=' setting overrides BUILD_DIR environent variable. When none of the above methods is used the local build is performed and the object files are placed in the source directory. --- rtc/Makefile | 17 ++++++++++------- 1 file changed, 10 insertions(+), 7 deletions(-) (limited to 'rtc') diff --git a/rtc/Makefile b/rtc/Makefile index 2c5d099..ca5b66b 100644 --- a/rtc/Makefile +++ b/rtc/Makefile @@ -1,5 +1,5 @@ # -# (C) Copyright 2001-2004 +# (C) Copyright 2001-2006 # Wolfgang Denk, DENX Software Engineering, wd@denx.de. # # See file CREDITS for list of people who contributed to this @@ -25,24 +25,27 @@ include $(TOPDIR)/config.mk #CFLAGS += -DDEBUG -LIB = librtc.a +LIB = $(obj)librtc.a -OBJS = date.o \ +COBJS = date.o \ bf533_rtc.o ds12887.o ds1302.o ds1306.o ds1307.o \ ds1337.o ds1374.o ds1556.o ds164x.o ds174x.o \ m41t11.o max6900.o m48t35ax.o mc146818.o mk48t59.o \ mpc5xxx.o mpc8xx.o pcf8563.o s3c24x0_rtc.o rs5c372.o +SRCS := $(COBJS:.o=.c) +OBJS := $(addprefix $(obj),$(COBJS)) + all: $(LIB) -$(LIB): $(START) $(OBJS) +$(LIB): $(obj).depend $(OBJS) $(AR) crv $@ $(OBJS) ######################################################################### -.depend: Makefile $(OBJS:.o=.c) - $(CC) -M $(CFLAGS) $(OBJS:.o=.c) > $@ +# defines $(obj).depend target +include $(SRCTREE)/rules.mk -sinclude .depend +sinclude $(obj).depend ######################################################################### -- cgit v1.1