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. --- lib_nios/Makefile | 17 +++++++++-------- 1 file changed, 9 insertions(+), 8 deletions(-) (limited to 'lib_nios') diff --git a/lib_nios/Makefile b/lib_nios/Makefile index eff46db..ad4c6c4 100644 --- a/lib_nios/Makefile +++ b/lib_nios/Makefile @@ -1,5 +1,5 @@ # -# (C) Copyright 2000 +# (C) Copyright 2000-2006 # Wolfgang Denk, DENX Software Engineering, wd@denx.de. # # See file CREDITS for list of people who contributed to this @@ -23,22 +23,23 @@ include $(TOPDIR)/config.mk -LIB = lib$(ARCH).a +LIB = $(obj)lib$(ARCH).a -AOBJS = +SOBJS = COBJS = board.o cache.o divmod.o nios_linux.o mult.o time.o -OBJS = $(AOBJS) $(COBJS) +SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c) +OBJS := $(addprefix $(obj),$(SOBJS) $(COBJS)) -$(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 ######################################################################### -- cgit v1.1