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/fs/fdos/Makefile b/fs/fdos/Makefile
index c25e744..e55ac8a 100644
--- a/fs/fdos/Makefile
+++ b/fs/fdos/Makefile
@@ -1,4 +1,7 @@
#
+# (C) Copyright 2006
+# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+#
# (C) Copyright 2002
# Stäubli Faverges - <www.staubli.com>
# Pierre AUBERT p.aubert@staubli.com
@@ -25,25 +28,27 @@
include $(TOPDIR)/config.mk
-LIB = libfdos.a
+LIB = $(obj)libfdos.a
AOBJS =
COBJS = fat.o vfat.o dev.o fdos.o fs.o subdir.o
-OBJS = $(AOBJS) $(COBJS)
+
+SRCS := $(AOBJS:.o=.S) $(COBJS:.o=.c)
+OBJS := $(addprefix $(obj),$(AOBJS) $(COBJS))
#CPPFLAGS +=
all: $(LIB) $(AOBJS)
-$(LIB): .depend $(OBJS)
+$(LIB): $(obj).depend $(OBJS)
$(AR) crv $@ $(OBJS)
#########################################################################
-.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
#########################################################################