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authorMarian Balakowicz <m8@semihalf.com>2006-09-01 19:49:50 +0200
committerMarian Balakowicz <m8@semihalf.com>2006-09-01 19:49:50 +0200
commitf93286397ed2a7084efb0362a43ee09f11702349 (patch)
tree11e0c11781ba0b867831eff47a4178a464cf00b3 /post/rules.mk
parent24d3d3754634532ae262075484e7c1d00d447152 (diff)
downloadblackbird-obmc-uboot-f93286397ed2a7084efb0362a43ee09f11702349.tar.gz
blackbird-obmc-uboot-f93286397ed2a7084efb0362a43ee09f11702349.zip
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.
Diffstat (limited to 'post/rules.mk')
-rw-r--r--post/rules.mk14
1 files changed, 8 insertions, 6 deletions
diff --git a/post/rules.mk b/post/rules.mk
index 1ad6959003..a2f33ad6ae 100644
--- a/post/rules.mk
+++ b/post/rules.mk
@@ -1,5 +1,5 @@
#
-# (C) Copyright 2002
+# (C) Copyright 2002-2006
# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
#
# See file CREDITS for list of people who contributed to this
@@ -23,20 +23,22 @@
include $(TOPDIR)/config.mk
-OBJS = $(AOBJS) $(COBJS)
+SRCS := $(AOBJS:.o=.S) $(COBJS:.o=.c)
+OBJS := $(addprefix $(obj),$(AOBJS) $(COBJS))
+LIB := $(obj)$(LIB)
CPPFLAGS += -I$(TOPDIR)
all: $(LIB)
-$(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) > .depend
+# defines $(obj).depend target
+include $(SRCTREE)/rules.mk
-sinclude .depend
+sinclude $(obj).depend
#########################################################################
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