-ifeq ($(KBUILD_EXTMOD),)
- build-dir = $(patsubst %/,%,$(dir $@))
- target-dir = $(dir $@)
-else
- zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@)))
- build-dir = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash))
- target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@))
-endif
-
-%.s: %.c prepare FORCE
- $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
-%.i: %.c prepare FORCE
- $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
-%.o: %.c prepare FORCE
- $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
-%.lst: %.c prepare FORCE
- $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
-%.s: %.S prepare FORCE
- $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
-%.o: %.S prepare FORCE
- $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
-%.symtypes: %.c prepare FORCE
- $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
-%.ll: %.c prepare FORCE
- $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
+build-target = $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD)/)$@
+build-dir = $(patsubst %/,%,$(dir $(build-target)))
+
+%.i: prepare FORCE
+ $(Q)$(MAKE) $(build)=$(build-dir) $(build-target)
+%.ll: prepare FORCE
+ $(Q)$(MAKE) $(build)=$(build-dir) $(build-target)
+%.lst: prepare FORCE
+ $(Q)$(MAKE) $(build)=$(build-dir) $(build-target)
+%.o: prepare FORCE
+ $(Q)$(MAKE) $(build)=$(build-dir) $(build-target)
+%.s: prepare FORCE
+ $(Q)$(MAKE) $(build)=$(build-dir) $(build-target)
+%.symtypes: prepare FORCE
+ $(Q)$(MAKE) $(build)=$(build-dir) $(build-target)
+%.ko: %.o
+ $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost