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.
diff --git a/board/evb64260/Makefile b/board/evb64260/Makefile
index c493d6c..b28372d 100644
--- a/board/evb64260/Makefile
+++ b/board/evb64260/Makefile
@@ -1,4 +1,7 @@
#
+# (C) Copyright 2006
+# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+#
# (C) Copyright 2001
# Josh Huber <huber@mclx.com>, Mission Critical Linux, Inc.
#
@@ -23,22 +26,25 @@
include $(TOPDIR)/config.mk
-LIB = lib$(BOARD).a
+LIB = $(obj)lib$(BOARD).a
SOBJS = misc.o
-OBJS = $(BOARD).o flash.o serial.o memory.o pci.o \
+COBJS = $(BOARD).o flash.o serial.o memory.o pci.o \
eth.o eth_addrtbl.o mpsc.o i2c.o \
sdram_init.o zuma_pbb.o intel_flash.o zuma_pbb_mbox.o
+SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c)
+OBJS := $(addprefix $(obj),$(COBJS))
+SOBJS := $(addprefix $(obj),$(SOBJS))
-$(LIB): .depend $(OBJS) $(SOBJS)
+$(LIB): $(obj).depend $(OBJS) $(SOBJS)
$(AR) crv $@ $(OBJS) $(SOBJS)
#########################################################################
-.depend: Makefile $(SOBJS:.o=.S) $(OBJS:.o=.c)
- $(CC) -M $(CFLAGS) $(SOBJS:.o=.S) $(OBJS:.o=.c) > $@
+# defines $(obj).depend target
+include $(SRCTREE)/rules.mk
-sinclude .depend
+sinclude $(obj).depend
#########################################################################