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/Makefile b/fs/Makefile
index 79cbdea..273d90e 100644
--- a/fs/Makefile
+++ b/fs/Makefile
@@ -1,5 +1,5 @@
#
-# (C) Copyright 2000, 2001
+# (C) Copyright 2000-2006
# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
#
# See file CREDITS for list of people who contributed to this
@@ -24,6 +24,6 @@
SUBDIRS := jffs2 cramfs fdos fat reiserfs ext2
-.depend all:
+$(obj).depend all:
@for dir in $(SUBDIRS) ; do \
$(MAKE) -C $$dir $@ ; done