From f93286397ed2a7084efb0362a43ee09f11702349 Mon Sep 17 00:00:00 2001 From: Marian Balakowicz Date: Fri, 1 Sep 2006 19:49:50 +0200 Subject: 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. --- board/bc3450/Makefile | 18 +++++++++++------- 1 file changed, 11 insertions(+), 7 deletions(-) (limited to 'board/bc3450/Makefile') diff --git a/board/bc3450/Makefile b/board/bc3450/Makefile index 4dec44fd25..122a22ae4f 100644 --- a/board/bc3450/Makefile +++ b/board/bc3450/Makefile @@ -1,5 +1,5 @@ # -# (C) Copyright 2003-2004 +# (C) Copyright 2003-2006 # Wolfgang Denk, DENX Software Engineering, wd@denx.de. # # See file CREDITS for list of people who contributed to this @@ -23,11 +23,15 @@ include $(TOPDIR)/config.mk -LIB = lib$(BOARD).a +LIB = $(obj)lib$(BOARD).a -OBJS := $(BOARD).o cmd_bc3450.o +COBJS := $(BOARD).o cmd_bc3450.o -$(LIB): $(OBJS) $(SOBJS) +SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c) +OBJS := $(addprefix $(obj),$(COBJS)) +SOBJS := $(addprefix $(obj),$(SOBJS)) + +$(LIB): $(obj).depend $(OBJS) $(AR) crv $@ $(OBJS) clean: @@ -38,9 +42,9 @@ distclean: clean ######################################################################### -.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 ######################################################################### -- cgit