diff options
| author | Marian Balakowicz <m8@semihalf.com> | 2006-09-01 19:49:50 +0200 |
|---|---|---|
| committer | Marian Balakowicz <m8@semihalf.com> | 2006-09-01 19:49:50 +0200 |
| commit | f93286397ed2a7084efb0362a43ee09f11702349 (patch) | |
| tree | 11e0c11781ba0b867831eff47a4178a464cf00b3 /dtt/Makefile | |
| parent | 24d3d3754634532ae262075484e7c1d00d447152 (diff) | |
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 'dtt/Makefile')
| -rw-r--r-- | dtt/Makefile | 18 |
1 files changed, 12 insertions, 6 deletions
diff --git a/dtt/Makefile b/dtt/Makefile index 0a334784ded..486008a1c31 100644 --- a/dtt/Makefile +++ b/dtt/Makefile @@ -1,4 +1,7 @@ # +# (C) Copyright 2006 +# Wolfgang Denk, DENX Software Engineering, wd@denx.de. +# # (C) Copyright 2001 # Erik Theisen, Wave 7 Optics, etheisen@mindspring.com. # @@ -25,20 +28,23 @@ include $(TOPDIR)/config.mk #CFLAGS += -DDEBUG -LIB = libdtt.a +LIB = $(obj)libdtt.a + +COBJS = lm75.o ds1621.o adm1021.o -OBJS = lm75.o ds1621.o adm1021.o +SRCS := $(COBJS:.o=.c) +OBJS := $(addprefix $(obj),$(COBJS)) all: $(LIB) -$(LIB): $(START) $(OBJS) +$(LIB): $(obj).depend $(OBJS) $(AR) crv $@ $(OBJS) ######################################################################### -.depend: Makefile $(OBJS:.o=.c) - $(CC) -M $(CFLAGS) $(OBJS:.o=.c) > $@ +# defines $(obj).depend target +include $(SRCTREE)/rules.mk -sinclude .depend +sinclude $(obj).depend ######################################################################### |