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/drivers/sk98lin/Makefile b/drivers/sk98lin/Makefile
index 8ee0e21..ac21e02 100644
--- a/drivers/sk98lin/Makefile
+++ b/drivers/sk98lin/Makefile
@@ -1,5 +1,5 @@
#
-# (C) Copyright 2003
+# (C) Copyright 2003-2006
# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
#
# See file CREDITS for list of people who contributed to this
@@ -24,15 +24,19 @@
#
# Makefile for the SysKonnect SK-98xx device driver.
#
+
include $(TOPDIR)/config.mk
-LIB := libsk98lin.a
+LIB := $(obj)libsk98lin.a
-OBJS := skge.o skaddr.o skgehwt.o skgeinit.o skgepnmi.o skgesirq.o \
- ski2c.o sklm80.o skqueue.o skrlmt.o sktimer.o skvpd.o \
- skxmac2.o skcsum.o #skproc.o
+COBJS := skge.o skaddr.o skgehwt.o skgeinit.o skgepnmi.o skgesirq.o \
+ ski2c.o sklm80.o skqueue.o skrlmt.o sktimer.o skvpd.o \
+ skxmac2.o skcsum.o #skproc.o
-OBJS += uboot_skb.o uboot_drv.o
+COBJS += uboot_skb.o uboot_drv.o
+
+SRCS := $(COBJS:.o=.c)
+OBJS := $(addprefix $(obj),$(COBJS))
# DBGDEF = \
# -DDEBUG
@@ -84,18 +88,20 @@
EXTRA_CFLAGS += -I. -DSK_USE_CSUM $(DBGDEF)
CFLAGS += $(EXTRA_CFLAGS)
+HOST_CFLAGS += $(EXTRA_CFLAGS)
all: $(LIB)
-$(LIB): $(OBJS)
+$(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
#########################################################################
+