[PATCH] improve gate generation

[Matthew Wilcox <willy@debian.org>]

This patch fixes a couple of things.  
 - gate.lds.s is generated in the obj tree, not the src tree.
 - It can be generated by the normal .s.S rule.
 - Adding the extra-y list prevents it from being rebuilt unnecessarily.

Index: arch/ia64/kernel/Makefile
=================================RCS file: /var/cvs/linux-2.6/arch/ia64/kernel/Makefile,v
retrieving revision 1.4
diff -u -p -r1.4 Makefile
--- arch/ia64/kernel/Makefile	7 Jan 2004 21:30:05 -0000	1.4
+++ arch/ia64/kernel/Makefile	24 Feb 2004 01:44:56 -0000
@@ -22,15 +22,15 @@ obj-$(CONFIG_PERFMON)		+= perfmon_defaul
 # The gate DSO image is built using a special linker script.
 targets += gate.so gate-syms.o
 
+extra-y += gate.so gate-syms.o gate.lds.s gate.o
+
 AFLAGS_gate.lds.o += -P -C -U$(ARCH)
-arch/ia64/kernel/gate.lds.s: %.s: %.S scripts FORCE
-	$(call if_changed_dep,as_s_S)
 
 quiet_cmd_gate = GATE $@
       cmd_gate = $(CC) -nostdlib $(GATECFLAGS_$(@F)) -Wl,-T,$(filter-out FORCE,$^) -o $@
 
 GATECFLAGS_gate.so = -shared -s -Wl,-soname=linux-gate.so.1
-$(obj)/gate.so: $(src)/gate.lds.s $(obj)/gate.o FORCE
+$(obj)/gate.so: $(obj)/gate.lds.s $(obj)/gate.o FORCE
 	$(call if_changed,gate)
 
 $(obj)/built-in.o: $(obj)/gate-syms.o

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain