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/altera/ep1s10/Makefile b/board/altera/ep1s10/Makefile
index a92b258..26873b6 100644
--- a/board/altera/ep1s10/Makefile
+++ b/board/altera/ep1s10/Makefile
@@ -1,5 +1,5 @@
#
-# (C) Copyright 2001-2004
+# (C) Copyright 2001-2006
# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
#
# See file CREDITS for list of people who contributed to this
@@ -12,7 +12,7 @@
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
@@ -22,17 +22,22 @@
#
include $(TOPDIR)/config.mk
+ifneq ($(OBJTREE),$(SRCTREE))
+$(shell mkdir -p $(obj)../common)
+endif
-LIB = lib$(BOARD).a
+LIB = $(obj)lib$(BOARD).a
COMOBJS := ../common/AMDLV065D.o ../common/epled.o
-OBJS := $(BOARD).o $(COMOBJS)
+COBJS := $(BOARD).o $(COMOBJS)
-SOBJS =
+SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c)
+OBJS := $(addprefix $(obj),$(COBJS))
+SOBJS := $(addprefix $(obj),$(SOBJS))
-$(LIB): $(OBJS) $(SOBJS)
- $(AR) crv $@ $^
+$(LIB): $(obj).depend $(OBJS)
+ $(AR) crv $@ $(OBJS)
clean:
rm -f $(SOBJS) $(OBJS)
@@ -42,9 +47,9 @@
#########################################################################
-.depend: Makefile $(SOBJS:.o=.S) $(OBJS:.o=.c)
- $(CC) -M $(CPPFLAGS) $(SOBJS:.o=.S) $(OBJS:.o=.c) > $@
+# defines $(obj).depend target
+include $(SRCTREE)/rules.mk
--include .depend
+sinclude $(obj).depend
#########################################################################