Completely rework the config system so that it no longer annoys me to work on

the busybox development tree.  This eliminates the use of recursive make, and
once again allows us to run 'make' in a subdirectory with the expected result.
And things are now much faster too.  Greatly improved IMHO...
 -Erik


git-svn-id: svn://busybox.net/trunk/busybox@4595 69ca8d6d-28ef-0310-b511-8ec308f3f277

2 files changed, 46 insertions, 19 deletions

diff --git a/init/Makefile b/init/Makefile
index 76f49794d..8d0cdc4ec 100644
--- a/init/Makefile
+++ b/init/Makefile
@@ -1,6 +1,6 @@
 # Makefile for busybox
 #
-# Copyright (C) 1999,2000,2001 by Erik Andersen <andersee@debian.org>
+# Copyright (C) 1999-2002 Erik Andersen <andersee@debian.org>
 #
 # 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
@@ -17,24 +17,14 @@
 # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 #
 
-TOPDIR   :=..
-L_TARGET := init.a
-
-obj-y           :=
-obj-n           :=
-obj-            :=
-
-obj-$(CONFIG_HALT)              += halt.o
-obj-$(CONFIG_INIT)              += init.o
-obj-$(CONFIG_POWEROFF)          += poweroff.o
-obj-$(CONFIG_REBOOT)            += reboot.o
-obj-$(CONFIG_START_STOP_DAEMON) += start_stop_daemon.o
-obj-$(CONFIG_RUN_PARTS)         += run_parts.o
-
-
-# Hand off to toplevel Rules.mak
-include $(TOPDIR)/Rules.mak
+TOPDIR:= ../
+INIT_DIR:=./
+include $(TOPDIR).config
+include $(TOPDIR)Rules.mak
+include Makefile.in
+all: $(libraries-y)
+-include $(TOPDIR).depend
 
 clean:
-        rm -f $(L_TARGET) *.o core
+        rm -f *.o *.a $(AR_TARGET)
 
diff --git a/init/Makefile.in b/init/Makefile.in
new file mode 100644
index 000000000..8cc95264d
--- /dev/null
+++ b/init/Makefile.in
@@ -0,0 +1,37 @@
+# Makefile for busybox
+#
+# Copyright (C) 1999-2002 Erik Andersen <andersee@debian.org>
+#
+# 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
+#
+
+INIT_AR:=init.a
+ifndef $(INIT_DIR)
+INIT_DIR:=$(TOPDIR)init/
+endif
+
+INIT-y:=
+INIT-$(CONFIG_HALT)                     += halt.o
+INIT-$(CONFIG_INIT)                     += init.o
+INIT-$(CONFIG_POWEROFF)                 += poweroff.o
+INIT-$(CONFIG_REBOOT)                   += reboot.o
+INIT-$(CONFIG_START_STOP_DAEMON)        += start_stop_daemon.o
+INIT-$(CONFIG_RUN_PARTS)                += run_parts.o
+
+libraries-y+=$(INIT_DIR)$(INIT_AR)
+
+$(INIT_DIR)$(INIT_AR): $(patsubst %,$(INIT_DIR)%, $(INIT-y))
+        $(AR) -ro $@ $(patsubst %,$(INIT_DIR)%, $(INIT-y))
+