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/MAI/AmigaOneG3SE/Makefile | 31 +++++++++++++++++++------------
 1 file changed, 19 insertions(+), 12 deletions(-)

(limited to 'board/MAI/AmigaOneG3SE/Makefile')

diff --git a/board/MAI/AmigaOneG3SE/Makefile b/board/MAI/AmigaOneG3SE/Makefile
index b1247fe..e920482 100644
--- a/board/MAI/AmigaOneG3SE/Makefile
+++ b/board/MAI/AmigaOneG3SE/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
@@ -22,8 +22,12 @@
 #
 
 include $(TOPDIR)/config.mk
+ifneq ($(OBJTREE),$(SRCTREE))
+$(shell mkdir -p $(obj)../menu)
+$(shell mkdir -p $(obj)../bios_emulator)
+endif
 
-LIB	= lib$(BOARD).a
+LIB	= $(obj)lib$(BOARD).a
 
 COBJS	= $(BOARD).o articiaS.o flash.o serial.o smbus.o articiaS_pci.o \
 		via686.o i8259.o ../bios_emulator/x86interface.o 	\
@@ -31,26 +35,29 @@ COBJS	= $(BOARD).o articiaS.o flash.o serial.o smbus.o articiaS_pci.o \
 		interrupts.o ps2kbd.o video.o usb_uhci.o enet.o	        \
 		../menu/cmd_menu.o cmd_boota.o nvram.o
 
-AOBJS	= board_asm_init.o memio.o
-
-OBJS	= $(COBJS) $(AOBJS)
+SOBJS	= board_asm_init.o memio.o
 
 EMUDIR  = ../bios_emulator/scitech/src/x86emu/
 EMUOBJ  = $(EMUDIR)decode.o $(EMUDIR)ops2.o $(EMUDIR)fpu.o $(EMUDIR)prim_ops.o \
 		$(EMUDIR)ops.o $(EMUDIR)sys.o
-EMUSRC = $(EMUOBJ:.o=.c)
+EMUSRC  = $(EMUOBJ:.o=.c)
+
+SRCS	:= $(SOBJS:.o=.S) $(COBJS:.o=.c)
+OBJS	:= $(addprefix $(obj),$(COBJS))
+SOBJS	:= $(addprefix $(obj),$(SOBJS))
+EMUOBJ  := $(addprefix $(obj),$(EMUOBJ))
 
-$(LIB):	.depend $(OBJS) $(EMUSRC)
-	make libx86emu.a -C ../bios_emulator/scitech/src/x86emu -f makefile.uboot CROSS_COMPILE=$(CROSS_COMPILE)
+$(LIB):	$(obj).depend $(OBJS) $(SOBJS) $(EMUSRC)
+	make $(obj)libx86emu.a -C ../bios_emulator/scitech/src/x86emu -f makefile.uboot CROSS_COMPILE=$(CROSS_COMPILE)
 	-rm $(LIB)
-	$(AR) crv $@ $(OBJS) $(EMUOBJ)
+	$(AR) crv $@ $(OBJS) $(SOBJS) $(EMUOBJ)
 
 
 #########################################################################
 
-.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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