aboutsummaryrefslogtreecommitdiff
path: root/rules.mk
diff options
context:
space:
mode:
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 /rules.mk
parent24d3d3754634532ae262075484e7c1d00d447152 (diff)
downloadu-boot-linaro-stable-f93286397ed2a7084efb0362a43ee09f11702349.tar.gz
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 'rules.mk')
-rw-r--r--rules.mk35
1 files changed, 35 insertions, 0 deletions
diff --git a/rules.mk b/rules.mk
new file mode 100644
index 000000000..a77451bd7
--- /dev/null
+++ b/rules.mk
@@ -0,0 +1,35 @@
+#
+# (C) Copyright 2006
+# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+#
+# See file CREDITS for list of people who contributed to this
+# project.
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License as
+# published by the Free Software Foundation; either version 2 of
+# the License, or (at your option) any later version.
+#
+# 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
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+# MA 02111-1307 USA
+#
+
+#########################################################################
+
+_depend: $(obj).depend
+
+$(obj).depend: $(src)Makefile $(TOPDIR)/config.mk $(SRCS)
+ @rm -f $@
+ @for f in $(SRCS); do \
+ g=`basename $$f | sed -e 's/\(.*\)\.\w/\1.o/'`; \
+ $(CC) -M $(HOST_CFLAGS) $(CPPFLAGS) -MQ $(obj)$$g $$f >> $@ ; \
+ done
+
+#########################################################################