[PATCH] alpha bootp target

From Jeff.Wiedemeier@hp.com:

Fix alpha Makefiles for bootpfile target.

arch/alpha/Makefile

@@ -96,6 +96,10 @@ core-y			+= arch/alpha/kernel/ arch/alpha/mm/
 core-$(CONFIG_MATHEMU)  += arch/alpha/math-emu/
 libs-y			+= arch/alpha/lib/
 
+# export what is needed by arch/alpha/boot/Makefile
+LIBS_Y := $(patsubst %/, %/lib.a, $(libs-y))
+export LIBS_Y
+
 boot := arch/alpha/boot
 
 #Default target when executing make with no arguments

arch/alpha/boot/Makefile

@@ -72,8 +72,11 @@ $(obj)/tools/bootph: $(obj)/bootpheader $(OBJSTRIP) FORCE
 LDFLAGS_bootloader  := -static -uvsprintf -T  #-N -relax
 LDFLAGS_bootpheader := -static -uvsprintf -T  #-N -relax
 
-$(obj)/bootloader: $(obj)/bootloader.lds $(obj)/head.o $(obj)/main.o FORCE
+OBJ_bootlx   := $(obj)/head.o $(obj)/main.o
+OBJ_bootph   := $(obj)/head.o $(obj)/bootp.o
+
+$(obj)/bootloader: $(obj)/bootloader.lds $(OBJ_bootlx) FORCE
 	$(call if_changed,ld)
 
-$(obj)/bootpheader: $(obj)/bootloader.lds $(obj)/head.o $(obj)/bootp.o FORCE
+$(obj)/bootpheader: $(obj)/bootloader.lds $(OBJ_bootph) $(LIBS_Y) FORCE
 	$(call if_changed,ld)