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. --- net/Makefile | 18 +++++++++++------- 1 file changed, 11 insertions(+), 7 deletions(-) (limited to 'net') diff --git a/net/Makefile b/net/Makefile index 7a704898c21..6fe4002b61a 100644 --- a/net/Makefile +++ b/net/Makefile @@ -1,5 +1,5 @@ # -# (C) Copyright 2000 +# (C) Copyright 2000-2006 # Wolfgang Denk, DENX Software Engineering, wd@denx.de. # # See file CREDITS for list of people who contributed to this @@ -25,19 +25,23 @@ include $(TOPDIR)/config.mk # CFLAGS += -DET_DEBUG -DDEBUG -LIB = libnet.a +LIB = $(obj)libnet.a + +COBJS = net.o tftp.o bootp.o rarp.o eth.o nfs.o sntp.o + +SRCS := $(COBJS:.o=.c) +OBJS := $(addprefix $(obj),$(COBJS)) -OBJS = net.o tftp.o bootp.o rarp.o eth.o nfs.o sntp.o 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 v1.2.3