From f93286397ed2a7084efb0362a43ee09f11702349 Mon Sep 17 00:00:00 2001
From: Marian Balakowicz <m8@semihalf.com>
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.
---
 board/pcippc2/Makefile | 20 +++++++++++---------
 1 file changed, 11 insertions(+), 9 deletions(-)

(limited to 'board/pcippc2')

diff --git a/board/pcippc2/Makefile b/board/pcippc2/Makefile
index 2998f23eb0..2af328612a 100644
--- a/board/pcippc2/Makefile
+++ b/board/pcippc2/Makefile
@@ -1,5 +1,5 @@
 #
-# (C) Copyright 2002
+# (C) Copyright 2002-2006
 # Wolfgang Denk, DENX Software Engineering, wd@denx.de.
 #
 # See file CREDITS for list of people who contributed to this
@@ -23,23 +23,25 @@
 
 include $(TOPDIR)/config.mk
 
-LIB	= lib$(BOARD).a
+LIB	= $(obj)lib$(BOARD).a
 
 COBJS	= $(BOARD).o cpc710_pci.o flash.o sconsole.o \
 	  fpga_serial.o pcippc2_fpga.o cpc710_init_ram.o i2c.o
 
-AOBJS	=
+SOBJS	=
 
-OBJS	= $(COBJS) $(AOBJS)
+SRCS	:= $(SOBJS:.o=.S) $(COBJS:.o=.c)
+OBJS	:= $(addprefix $(obj),$(COBJS))
+SOBJS	:= $(addprefix $(obj),$(SOBJS))
 
-$(LIB):	.depend $(OBJS)
-	$(AR) crv $@ $(OBJS)
+$(LIB):	$(obj).depend $(OBJS) $(SOBJS)
+	$(AR) crv $@ $(OBJS) $(SOBJS)
 
 #########################################################################
 
-.depend: Makefile $(AOBJS:.o=.S) $(COBJS:.o=.c)
-	$(CC) -M $(CFLAGS) $(AOBJS:.o=.S) $(COBJS:.o=.c) > $@
+# defines $(obj).depend target
+include $(SRCTREE)/rules.mk
 
-sinclude .depend
+sinclude $(obj).depend
 
 #########################################################################
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