Merge tp1.ruhr-uni-bochum.de:/home/kai/src/kernel/v2.5/linux-2.5

into tp1.ruhr-uni-bochum.de:/home/kai/src/kernel/v2.5/linux-2.5.make

Documentation/DocBook/Makefile

@@ -154,7 +154,6 @@ LOG     :=      $(patsubst %.sgml, %.log, $(BOOKS))
 OUT     :=      $(patsubst %.sgml, %.out, $(BOOKS))
 
 clean:
-	@echo 'Cleaning up (DocBook)'
 	@rm -f core *~
 	@rm -f $(BOOKS)
 	@rm -f $(DVI) $(AUX) $(TEX) $(LOG) $(OUT)
@@ -162,7 +161,6 @@ clean:
 	@rm -f $(C-procfs-example)
 
 mrproper:
-	@echo 'Making mrproper (DocBook)'
 	@rm -f $(PS) $(PDF)
 	@rm -f -r $(HTML) $(patsubst %.html,%,$(HTML))
 

Makefile

@@ -52,13 +52,6 @@ CROSS_COMPILE 	=
 
 all:	vmlinux
 
-#	Print entire command lines instead of short version
-#	For now, leave the default
-
-ifndef KBUILD_VERBOSE
-  KBUILD_VERBOSE = 1
-endif
-
 # 	Decide whether to build built-in, modular, or both.
 #	Normally, just do built-in.
 
@@ -105,12 +98,19 @@ export KBUILD_MODULES KBUILD_BUILTIN
 # If it is set to "silent_", nothing wil be printed at all, since
 # the variable $(silent_cmd_cc_o_c) doesn't exist.
 
+#	For now, leave verbose as default
+
+ifndef KBUILD_VERBOSE
+  KBUILD_VERBOSE = 1
+endif
+
+MAKEFLAGS += --no-print-directory
+
 #	If the user wants quiet mode, echo short versions of the commands 
-#	only and suppress the 'Entering/Leaving directory' messages
+#	only
 
 ifneq ($(KBUILD_VERBOSE),1)
   quiet=quiet_
-  MAKEFLAGS += --no-print-directory
 endif
 
 #	If the user is running make -s (silent mode), suppress echoing of
@@ -120,11 +120,18 @@ ifneq ($(findstring s,$(MAKEFLAGS)),)
   quiet=silent_
 endif
 
-export quiet
+export quiet KBUILD_VERBOSE
 
-#
-# Include the make variables (CC, etc...)
-#
+#	Paths to obj / src tree
+
+src	:= .
+obj	:= .
+srctree := .
+objtree := .
+
+export srctree objtree
+
+# 	Make variables (CC, etc...)
 
 AS		= $(CROSS_COMPILE)as
 LD		= $(CROSS_COMPILE)ld
@@ -145,24 +152,21 @@ CFLAGS_MODULE   = $(MODFLAGS)
 AFLAGS_MODULE   = $(MODFLAGS)
 CFLAGS_KERNEL	=
 AFLAGS_KERNEL	=
-EXPORT_FLAGS    =
 NOSTDINC_FLAGS  = -nostdinc -iwithprefix include
 
+CPPFLAGS	:= -D__KERNEL__ -Iinclude
+CFLAGS 		:= $(CPPFLAGS) -Wall -Wstrict-prototypes -Wno-trigraphs -O2 \
+	  	   -fomit-frame-pointer -fno-strict-aliasing -fno-common
+AFLAGS		:= -D__ASSEMBLY__ $(CPPFLAGS)
+
 export	VERSION PATCHLEVEL SUBLEVEL EXTRAVERSION KERNELRELEASE ARCH \
 	CONFIG_SHELL TOPDIR HOSTCC HOSTCFLAGS CROSS_COMPILE AS LD CC \
 	CPP AR NM STRIP OBJCOPY OBJDUMP MAKE MAKEFILES GENKSYMS PERL
 
-export CPPFLAGS EXPORT_FLAGS NOSTDINC_FLAGS OBJCOPYFLAGS
+export CPPFLAGS NOSTDINC_FLAGS OBJCOPYFLAGS LDFLAGS
 export CFLAGS CFLAGS_KERNEL CFLAGS_MODULE 
 export AFLAGS AFLAGS_KERNEL AFLAGS_MODULE
 
-src	:= .
-obj	:= .
-srctree := $(TOPDIR)
-objtree := $(TOPDIR)
-
-export srctree objtree
-
 # The temporary file to save gcc -MD generated dependencies must not
 # contain a comma
 depfile = $(subst $(comma),_,$(@D)/.$(@F).d)
@@ -183,10 +187,46 @@ scripts/docproc scripts/fixdep scripts/split-include : scripts ;
 
 .PHONY: scripts
 scripts:
-	@$(MAKE) -C scripts
+	@$(call descend,scripts,)
+
+# Objects we will link into vmlinux / subdirs we need to visit
+# ---------------------------------------------------------------------------
+
+init-y		:= init/
+drivers-y	:= drivers/ sound/
+net-y		:= net/
+libs-y		:= lib/
+core-y		:=
+SUBDIRS		:=
 
 ifeq ($(filter $(noconfig_targets),$(MAKECMDGOALS)),)
 
+include-config := 1
+
+-include .config
+
+endif
+
+include arch/$(ARCH)/Makefile
+
+core-y		+= kernel/ mm/ fs/ ipc/ security/
+
+SUBDIRS		+= $(patsubst %/,%,$(filter %/, $(init-y) $(init-m) \
+		     $(core-y) $(core-m) $(drivers-y) $(drivers-m) \
+		     $(net-y) $(net-m) $(libs-y) $(libs-m)))
+
+ALL_SUBDIRS     := $(SUBDIRS) $(patsubst %/,%,$(filter %/, $(init-n) $(init-) \
+		     $(core-n) $(core-) $(drivers-n) $(drivers-) \
+		     $(net-n) $(net-) $(libs-n) $(libs-)))
+
+init-y		:= $(patsubst %/, %/built-in.o, $(init-y))
+core-y		:= $(patsubst %/, %/built-in.o, $(core-y))
+drivers-y	:= $(patsubst %/, %/built-in.o, $(drivers-y))
+net-y		:= $(patsubst %/, %/built-in.o, $(net-y))
+libs-y		:= $(patsubst %/, %/lib.a, $(libs-y))
+
+ifdef include-config
+
 # Here goes the main Makefile
 # ===========================================================================
 #
@@ -197,8 +237,6 @@ ifeq ($(filter $(noconfig_targets),$(MAKECMDGOALS)),)
 
 #	In this section, we need .config
 
--include .config
-
 #	If .config doesn't exist - tough luck
 
 .config: arch/$(ARCH)/config.in $(shell find . -name Config.in)
@@ -215,6 +253,10 @@ ifeq ($(filter $(noconfig_targets),$(MAKECMDGOALS)),)
 	@echo '***'
 	@exit 1
 
+ifdef CONFIG_MODULES
+export EXPORT_FLAGS := -DEXPORT_SYMTAB
+endif
+
 #
 # INSTALL_PATH specifies where to place the updated kernel and system map
 # images.  Uncomment if you want to place them anywhere other than root.
@@ -231,57 +273,6 @@ ifeq ($(filter $(noconfig_targets),$(MAKECMDGOALS)),)
 MODLIB	:= $(INSTALL_MOD_PATH)/lib/modules/$(KERNELRELEASE)
 export MODLIB
 
-#
-# standard CFLAGS
-#
-
-CPPFLAGS := -D__KERNEL__ -I$(objtree)/include
-
-CFLAGS := $(CPPFLAGS) -Wall -Wstrict-prototypes -Wno-trigraphs -O2 \
-	  -fomit-frame-pointer -fno-strict-aliasing -fno-common
-AFLAGS := -D__ASSEMBLY__ $(CPPFLAGS)
-
-ifdef CONFIG_MODULES
-EXPORT_FLAGS := -DEXPORT_SYMTAB
-endif
-
-# Link components for vmlinux
-# ---------------------------------------------------------------------------
-
-init-y		:= init/
-drivers-y	:= drivers/ sound/
-networks-y	:= net/
-libs-y		:= lib/
-
-CORE_FILES	:= kernel/built-in.o mm/built-in.o fs/built-in.o \
-		   ipc/built-in.o security/built-in.o
-SUBDIRS		+= kernel mm fs ipc security
-
-include arch/$(ARCH)/Makefile
-
-SUBDIRS		+= $(patsubst %/,%,$(filter %/, $(init-y) $(init-m)))
-INIT		+= $(patsubst %/, %/built-in.o, $(init-y))
-
-SUBDIRS		+= $(patsubst %/,%,$(filter %/, $(core-y) $(core-m)))
-CORE_FILES	:= $(patsubst %/, %/built-in.o, $(core-y)) $(CORE_FILES)
-
-SUBDIRS		+= $(patsubst %/,%,$(filter %/, $(drivers-y) $(drivers-m)))
-DRIVERS		+= $(patsubst %/, %/built-in.o, $(drivers-y))
-
-SUBDIRS		+= $(patsubst %/,%,$(filter %/, $(networks-y) $(networks-m)))
-NETWORKS	+= $(patsubst %/, %/built-in.o, $(networks-y))
-
-SUBDIRS		+= $(patsubst %/,%,$(filter %/, $(libs-y) $(libs-m)))
-LIBS		+= $(patsubst %/, %/lib.a, $(libs-y))
-
-export	NETWORKS DRIVERS LIBS HEAD LDFLAGS MAKEBOOT
-
-# boot target
-# ---------------------------------------------------------------------------
-
-boot: vmlinux
-	@$(MAKE) -C arch/$(ARCH)/boot
-
 # Build vmlinux
 # ---------------------------------------------------------------------------
 
@@ -292,16 +283,16 @@ boot: vmlinux
 #       we cannot yet know if we will need to relink vmlinux.
 #	So we descend into init/ inside the rule for vmlinux again.
 
-vmlinux-objs := $(HEAD) $(INIT) $(CORE_FILES) $(LIBS) $(DRIVERS) $(NETWORKS)
+vmlinux-objs := $(HEAD) $(init-y) $(core-y) $(libs-y) $(drivers-y) $(net-y)
 
 quiet_cmd_link_vmlinux = LD      $@
 define cmd_link_vmlinux
-	$(LD) $(LDFLAGS) $(LDFLAGS_vmlinux) $(HEAD) $(INIT) \
+	$(LD) $(LDFLAGS) $(LDFLAGS_vmlinux) $(HEAD) $(init-y) \
 	--start-group \
-	$(CORE_FILES) \
-	$(LIBS) \
-	$(DRIVERS) \
-	$(NETWORKS) \
+	$(core-y) \
+	$(libs-y) \
+	$(drivers-y) \
+	$(net-y) \
 	--end-group \
 	$(filter $(kallsyms.o),$^) \
 	-o $@
@@ -314,7 +305,7 @@ define rule_vmlinux
 	echo '  Generating build number'
 	. scripts/mkversion > .tmp_version
 	mv -f .tmp_version .version
-	+$(MAKE) -C init
+	+$(call descend,init,)
 	$(call cmd,link_vmlinux)
 	echo 'cmd_$@ := $(cmd_link_vmlinux)' > $(@D)/.$(@F).cmd
 	$(NM) $@ | grep -v '\(compiled\)\|\(\.o$$\)\|\( [aUw] \)\|\(\.\.ng$$\)\|\(LASH[RL]DI\)' | sort > System.map
@@ -363,7 +354,7 @@ $(sort $(vmlinux-objs)): $(SUBDIRS) ;
 
 .PHONY: $(SUBDIRS)
 $(SUBDIRS): .hdepend prepare
-	@$(MAKE) -C $@
+	@$(call descend,$@,)
 
 #	Things we need done before we descend to build or make
 #	module versions are listed in "prepare"
@@ -377,7 +368,7 @@ prepare: include/linux/version.h include/asm include/config/MARKER
 
 AFLAGS_vmlinux.lds.o += -P -C -U$(ARCH)
 
-arch/$(ARCH)/vmlinux.lds.s: arch/$(ARCH)/vmlinux.lds.S scripts FORCE
+arch/$(ARCH)/vmlinux.lds.s: %.s: %.S scripts FORCE
 	$(call if_changed_dep,as_s_S)
 
 targets += arch/$(ARCH)/vmlinux.lds.s
@@ -386,17 +377,17 @@ targets += arch/$(ARCH)/vmlinux.lds.s
 # ---------------------------------------------------------------------------
 
 %.s: %.c FORCE
-	@$(MAKE) -C $(@D) $(@F)
+	@$(call descend,$(@D),$(@F))
 %.i: %.c FORCE
-	@$(MAKE) -C $(@D) $(@F)
+	@$(call descend,$(@D),$(@F))
 %.o: %.c FORCE
-	@$(MAKE) -C $(@D) $(@F)
+	@$(call descend,$(@D),$(@F))
 %.lst: %.c FORCE
-	@$(MAKE) -C $(@D) $(@F)
+	@$(call descend,$(@D),$(@F))
 %.s: %.S FORCE
-	@$(MAKE) -C $(@D) $(@F)
+	@$(call descend,$(@D),$(@F))
 %.o: %.S FORCE
-	@$(MAKE) -C $(@D) $(@F)
+	@$(call descend,$(@D),$(@F))
 
 # 	FIXME: The asm symlink changes when $(ARCH) changes. That's
 #	hard to detect, but I suppose "make mrproper" is a good idea
@@ -481,7 +472,7 @@ include/linux/modversions.h: scripts/fixdep prepare FORCE
 	$(update-if-changed)
 
 $(patsubst %,_sfdep_%,$(SUBDIRS)): FORCE
-	@$(MAKE) -C $(patsubst _sfdep_%, %, $@) fastdep
+	@$(call descend,$(patsubst _sfdep_%,%,$@),fastdep)
 
 else # !CONFIG_MODVERSIONS
 
@@ -499,7 +490,7 @@ ifdef CONFIG_MODULES
 #	Build modules
 
 ifdef CONFIG_MODVERSIONS
-MODFLAGS += -include $(objtree)/include/linux/modversions.h
+MODFLAGS += -include include/linux/modversions.h
 endif
 
 .PHONY: modules
@@ -533,7 +524,7 @@ _modinst_post:
 
 .PHONY: $(patsubst %, _modinst_%, $(SUBDIRS))
 $(patsubst %, _modinst_%, $(SUBDIRS)) :
-	@$(MAKE) -C $(patsubst _modinst_%, %, $@) modules_install
+	@$(call descend,$(patsubst _modinst_%,%,$@),modules_install)
 
 else # CONFIG_MODULES
 
@@ -597,7 +588,7 @@ rpm:	clean spec
 	rpm -ta $(TOPDIR)/../$(KERNELPATH).tar.gz ; \
 	rm $(TOPDIR)/../$(KERNELPATH).tar.gz
 
-else # ifeq ($(filter $(noconfig_targets),$(MAKECMDGOALS)),)
+else # ifdef include-config
 
 ifeq ($(filter-out $(noconfig_targets),$(MAKECMDGOALS)),)
 
@@ -631,11 +622,11 @@ ifeq ($(filter-out $(noconfig_targets),$(MAKECMDGOALS)),)
 	make_with_config
 
 xconfig:
-	@$(MAKE) -C scripts kconfig.tk
+	@$(call descend,scripts,kconfig.tk)
 	wish -f scripts/kconfig.tk
 
 menuconfig:
-	@$(MAKE) -C scripts lxdialog
+	@$(call descend,scripts,lxdialog)
 	$(CONFIG_SHELL) $(src)/scripts/Menuconfig arch/$(ARCH)/config.in
 
 config:
@@ -704,7 +695,7 @@ MRPROPER_FILES += \
 	.version .config* config.in config.old \
 	.menuconfig.log \
 	include/asm \
-	.hdepend $(TOPDIR)/include/linux/modversions.h \
+	.hdepend include/linux/modversions.h \
 	tags TAGS kernel.spec \
 	.tmp*
 
@@ -712,11 +703,7 @@ MRPROPER_FILES += \
 MRPROPER_DIRS += \
 	.tmp_export-objs \
 	include/config \
-	$(TOPDIR)/include/linux/modules
-
-#	That's our way to know about arch specific cleanup.
-
-include arch/$(ARCH)/Makefile
+	include/linux/modules
 
 clean:	archclean
 	@echo 'Cleaning up'
@@ -725,7 +712,7 @@ clean:	archclean
 		-name .\*.tmp -o -name .\*.d \) -type f -print \
 		| grep -v lxdialog/ | xargs rm -f
 	@rm -f $(CLEAN_FILES)
-	@$(MAKE) -f Documentation/DocBook/Makefile clean
+	@$(call descend,Documentation/DocBook,clean)
 
 mrproper: clean archmrproper
 	@echo 'Making mrproper'
@@ -734,8 +721,8 @@ mrproper: clean archmrproper
 		-type f -print | xargs rm -f
 	@rm -rf $(MRPROPER_DIRS)
 	@rm -f $(MRPROPER_FILES)
-	@$(MAKE) -C scripts mrproper
-	@$(MAKE) -f Documentation/DocBook/Makefile mrproper
+	@$(call descend,scripts,mrproper)
+	@$(call descend,Documentation/DocBook,mrproper)
 
 distclean: mrproper
 	@echo 'Making distclean'
@@ -822,7 +809,7 @@ help:
 # Documentation targets
 # ---------------------------------------------------------------------------
 sgmldocs psdocs pdfdocs htmldocs: scripts
-	@$(MAKE) -f Documentation/DocBook/Makefile $@
+	@$(call descend,Documentation/DocBook,$@)
 
 # Scripts to check various things for consistency
 # ---------------------------------------------------------------------------
@@ -852,10 +839,11 @@ else # ifneq ($(filter-out $(noconfig_targets),$(MAKECMDGOALS)),)
 	$(MAKE) $@
 
 endif # ifeq ($(filter-out $(noconfig_targets),$(MAKECMDGOALS)),)
-endif # ifeq ($(filter $(noconfig_targets),$(MAKECMDGOALS)),)
+endif # ifdef include-config
 
 # FIXME Should go into a make.lib or something 
 # ===========================================================================
+
 echo_target = $@
 
 a_flags = -Wp,-MD,$(depfile) $(AFLAGS) $(NOSTDINC_FLAGS) \
@@ -909,5 +897,12 @@ define update-if-changed
 	fi
 endef
 
+#	$(call descend,<dir>,<target>)
+#	Recursively call a sub-make in <dir> with target <target> 
+
+ifeq ($(KBUILD_VERBOSE),1)
+descend = echo '$(MAKE) -f $(1)/Makefile $(2)';
+endif
+descend += $(MAKE) -f $(1)/Makefile obj=$(1) $(2)
 
 FORCE:

Rules.make

@@ -8,23 +8,38 @@ comma   := ,
 empty   :=
 space   := $(empty) $(empty)
 
-# Figure out paths
+# Some bug traps
 # ---------------------------------------------------------------------------
-# Find the path relative to the toplevel dir, $(RELDIR), and express
-# the toplevel dir as a relative path from this dir, $(TOPDIR_REL)
 
-ifeq ($(findstring $(TOPDIR),$(CURDIR)),)
-  # Can only happen when something is built out of tree
-  RELDIR := $(CURDIR)
-  TOPDIR_REL := $(TOPDIR)
-else
-  RELDIR := $(subst $(TOPDIR)/,,$(CURDIR))
-  TOPDIR_REL := $(subst $(space),,$(foreach d,$(subst /, ,$(RELDIR)),../))
+ifdef O_TARGET
+$(warning kbuild: Usage of O_TARGET is obsolete in 2.5. Please fix!
+endif
+
+ifdef L_TARGET
+ifneq ($(L_TARGET),lib.a)
+$(warning kbuild: L_TARGET ($(L_TARGET)) should be renamed to lib.a. Please fix!)
+endif
+endif
+
+ifdef list-multi
+$(warning kbuild: list-multi ($(list-multi)) is obsolete in 2.5. Please fix!)
 endif
 
 # Some paths for the Makefiles to use
 # ---------------------------------------------------------------------------
 
+# FIXME. For now, we leave it possible to use make -C or make -f
+# to do work in subdirs.
+
+ifndef obj
+obj = .
+CFLAGS := $(patsubst -I%,-I$(TOPDIR)/%,$(patsubst -I$(TOPDIR)/%,-I%,$(CFLAGS)))
+AFLAGS := $(patsubst -I%,-I$(TOPDIR)/%,$(patsubst -I$(TOPDIR)/%,-I%,$(AFLAGS)))
+endif
+
+# For use in the quiet output
+echo_target = $@
+
 # Usage:
 #
 # $(obj)/target.o                     : target.o in the build dir
@@ -41,12 +56,7 @@ endif
 # We don't support separate source / object yet, so these are just
 # placeholders for now
 
-obj := .
-src := .
-
-# For use in the quiet output
-
-echo_target = $(RELDIR)/$@
+src := $(obj)
 
 # Figure out what we need to build from the various variables
 # ===========================================================================
@@ -84,16 +94,8 @@ __obj-y = $(filter-out export.o,$(obj-y))
 __obj-m = $(filter-out export.o,$(obj-m))
 
 # if $(foo-objs) exists, foo.o is a composite object 
-__multi-used-y := $(sort $(foreach m,$(__obj-y), $(if $($(m:.o=-objs)), $(m))))
-__multi-used-m := $(sort $(foreach m,$(__obj-m), $(if $($(m:.o=-objs)), $(m))))
-
-# FIXME: Rip this out later
-# Backwards compatibility: if a composite object is listed in
-# $(list-multi), skip it here, since the Makefile will have an explicit
-# link rule for it
-
-multi-used-y := $(filter-out $(list-multi),$(__multi-used-y))
-multi-used-m := $(filter-out $(list-multi),$(__multi-used-m))
+multi-used-y := $(sort $(foreach m,$(__obj-y), $(if $($(m:.o=-objs)), $(m))))
+multi-used-m := $(sort $(foreach m,$(__obj-m), $(if $($(m:.o=-objs)), $(m))))
 
 # Build list of the parts of our composite objects, our composite
 # objects depend on those (obviously)
@@ -111,6 +113,21 @@ real-objs-m := $(foreach m, $(obj-m), $(if $($(m:.o=-objs)),$($(m:.o=-objs)),$(m
 # Only build module versions for files which are selected to be built
 export-objs := $(filter $(export-objs),$(real-objs-y) $(real-objs-m))
 
+# Add subdir path
+
+EXTRA_TARGETS	:= $(addprefix $(obj)/,$(EXTRA_TARGETS))
+obj-y		:= $(addprefix $(obj)/,$(obj-y))
+obj-m		:= $(addprefix $(obj)/,$(obj-m))
+export-objs	:= $(addprefix $(obj)/,$(export-objs))
+subdir-obj-y	:= $(addprefix $(obj)/,$(subdir-obj-y))
+real-objs-y	:= $(addprefix $(obj)/,$(real-objs-y))
+real-objs-m	:= $(addprefix $(obj)/,$(real-objs-m))
+multi-used-y	:= $(addprefix $(obj)/,$(multi-used-y))
+multi-used-m	:= $(addprefix $(obj)/,$(multi-used-m))
+multi-objs-y	:= $(addprefix $(obj)/,$(multi-objs-y))
+multi-objs-m	:= $(addprefix $(obj)/,$(multi-objs-m))
+subdir-ym	:= $(addprefix $(obj)/,$(subdir-ym))
+
 # The temporary file to save gcc -MD generated dependencies must not
 # contain a comma
 depfile = $(subst $(comma),_,$(@D)/.$(@F).d)
@@ -136,15 +153,15 @@ ifeq ($(strip $(export-objs)),)
 # If we don't export any symbols in this dir, just descend
 # ---------------------------------------------------------------------------
 
-fastdep: sub_dirs
-	@echo -n
+fastdep: $(subdir-ym)
+	@/bin/true
 
 else
 
 # This sets version suffixes on exported symbols
 # ---------------------------------------------------------------------------
 
-MODVERDIR := $(TOPDIR)/include/linux/modules/$(RELDIR)
+MODVERDIR := include/linux/modules/$(obj)
 
 #
 # Added the SMP separator to stop module accidents between uniprocessor
@@ -174,7 +191,7 @@ c_flags = -Wp,-MD,$(depfile) $(CFLAGS) $(NOSTDINC_FLAGS) \
 # files (fix-dep filters them), so touch modversions.h if any of the .ver
 # files changes
 
-quiet_cmd_cc_ver_c = MKVER   include/linux/modules/$(RELDIR)/$*.ver
+quiet_cmd_cc_ver_c = MKVER   include/linux/modules/$(obj)/$*.ver
 cmd_cc_ver_c = $(CPP) $(c_flags) $< | $(GENKSYMS) $(genksyms_smp_prefix) \
 		 -k $(VERSION).$(PATCHLEVEL).$(SUBLEVEL) > $@.tmp
 
@@ -206,9 +223,9 @@ $(MODVERDIR)/%.ver: %.c FORCE
 
 targets := $(addprefix $(MODVERDIR)/,$(export-objs:.o=.ver))
 
-fastdep: $(targets) sub_dirs
-	@mkdir -p $(TOPDIR)/.tmp_export-objs/modules/$(RELDIR)
-	@touch $(addprefix $(TOPDIR)/.tmp_export-objs/modules/$(RELDIR)/,$(export-objs:.o=.ver))
+fastdep: $(targets) $(subdir-ym)
+	@mkdir -p $(dir $(addprefix .tmp_export-objs/modules/,$(export-objs:.o=.ver)))
+	@touch $(addprefix .tmp_export-objs/modules/,$(export-objs:.o=.ver))
 
 endif # export-objs 
 
@@ -219,15 +236,17 @@ ifeq ($(MAKECMDGOALS),modules_install)
 # Installing modules
 # ==========================================================================
 
+quiet_cmd_modules_install = INSTALL $(obj-m)
+cmd_modules_install = mkdir -p $(MODLIB)/kernel/$(obj); \
+		      cp $(obj-m) $(MODLIB)/kernel/$(obj)
+
 .PHONY: modules_install
 
-modules_install: sub_dirs
+modules_install: $(subdir-ym)
 ifneq ($(obj-m),)
-	@echo Installing modules in $(MODLIB)/kernel/$(RELDIR)
-	@mkdir -p $(MODLIB)/kernel/$(RELDIR)
-	@cp $(obj-m) $(MODLIB)/kernel/$(RELDIR)
+	$(call cmd,modules_install)
 else
-	@echo -n
+	@/bin/true
 endif
 
 else # ! modules_install
@@ -241,15 +260,18 @@ else # ! modules_install
 
 ifndef O_TARGET
 ifndef L_TARGET
-O_TARGET := built-in.o
+O_TARGET := $(obj)/built-in.o
 endif
 endif
 
-#	The echo suppresses the "Nothing to be done for first_rule"
+ifdef L_TARGET
+L_TARGET := $(obj)/$(L_TARGET)
+endif
+
 first_rule: $(if $(KBUILD_BUILTIN),$(O_TARGET) $(L_TARGET) $(EXTRA_TARGETS)) \
 	    $(if $(KBUILD_MODULES),$(obj-m)) \
-	    sub_dirs
-	@echo -n
+	    $(subdir-ym)
+	@/bin/true
 
 # Compile C sources (.c)
 # ---------------------------------------------------------------------------
@@ -324,7 +346,7 @@ targets += $(real-objs-y) $(real-objs-m) $(EXTRA_TARGETS) $(MAKECMDGOALS)
 # ---------------------------------------------------------------------------
 
 # To build objects in subdirs, we need to descend into the directories
-$(sort $(subdir-obj-y)): sub_dirs ;
+$(sort $(subdir-obj-y)): $(subdir-ym) ;
 
 #
 # Rule to compile a set of .o files into one .o file
@@ -360,7 +382,7 @@ endif
 #
 
 quiet_cmd_link_multi = LD      $(echo_target)
-cmd_link_multi = $(LD) $(LDFLAGS) $(EXTRA_LDFLAGS) -r -o $@ $(filter $($(basename $@)-objs),$^)
+cmd_link_multi = $(LD) $(LDFLAGS) $(EXTRA_LDFLAGS) -r -o $@ $(filter $(addprefix $(obj)/,$($(subst $(obj)/,,$(@:.o=-objs)))),$^)
 
 # We would rather have a list of rules like
 # 	foo.o: $(foo-objs)
@@ -380,6 +402,9 @@ targets += $(multi-used-y) $(multi-used-m)
 host-progs-single     := $(foreach m,$(host-progs),$(if $($(m)-objs),,$(m)))
 host-progs-multi      := $(foreach m,$(host-progs),$(if $($(m)-objs),$(m)))
 host-progs-multi-objs := $(foreach m,$(host-progs-multi),$($(m)-objs))
+host-progs-single     := $(addprefix $(obj)/,$(host-progs-single))
+host-progs-multi      := $(addprefix $(obj)/,$(host-progs-multi))
+host-progs-multi-objs := $(addprefix $(obj)/,$(host-progs-multi-objs))
 
 quiet_cmd_host_cc__c  = HOSTCC  $(echo_target)
 cmd_host_cc__c        = $(HOSTCC) -Wp,-MD,$(depfile) \
@@ -397,7 +422,7 @@ $(host-progs-multi-objs): %.o: %.c FORCE
 	$(call if_changed_dep,host_cc_o_c)
 
 quiet_cmd_host_cc__o  = HOSTLD  $(echo_target)
-cmd_host_cc__o        = $(HOSTCC) $(HOSTLDFLAGS) -o $@ $($@-objs) \
+cmd_host_cc__o        = $(HOSTCC) $(HOSTLDFLAGS) -o $@ $(addprefix $(obj)/,$($(subst $(obj)/,,$@)-objs)) \
 			$(HOST_LOADLIBES)
 
 $(host-progs-multi): %: $(host-progs-multi-objs) FORCE
@@ -454,12 +479,10 @@ cmd_gzip = gzip -f -9 < $< > $@
 # Descending
 # ---------------------------------------------------------------------------
 
-.PHONY: sub_dirs $(subdir-ym)
-
-sub_dirs: $(subdir-ym)
+.PHONY: $(subdir-ym)
 
 $(subdir-ym):
-	@$(MAKE) -C $@ $(MAKECMDGOALS)
+	@$(call descend,$@,$(MAKECMDGOALS))
 
 # Add FORCE to the prequisites of a target to force it to be always rebuilt.
 # ---------------------------------------------------------------------------
@@ -574,3 +597,10 @@ define do_cmd
         $(2)
 endef
 
+#	$(call descend,<dir>,<target>)
+#	Recursively call a sub-make in <dir> with target <target> 
+
+ifeq ($(KBUILD_VERBOSE),1)
+descend = echo '$(MAKE) -f $(1)/Makefile $(2)';
+endif
+descend += $(MAKE) -f $(1)/Makefile obj=$(1) $(2)

arch/alpha/Makefile

@@ -95,6 +95,8 @@ core-y			+= arch/alpha/kernel/ arch/alpha/mm/
 core-$(CONFIG_MATHEMU)  += arch/alpha/math-emu/
 libs-y			+= arch/alpha/lib/
 
+export libs-y
+
 MAKEBOOT = $(MAKE) -C arch/alpha/boot
 
 rawboot:

arch/alpha/boot/Makefile

@@ -20,7 +20,7 @@ BPOBJECTS = head.o bootp.o
 TARGETS = vmlinux.gz tools/objstrip # also needed by aboot & milo
 VMLINUX = $(TOPDIR)/vmlinux
 OBJSTRIP = tools/objstrip
-LIBS := $(patsubst lib/%,$(TOPDIR)/lib/%,$(LIBS))
+LIBS := $(addprefix $(TOPDIR)/,$(libs-y))
 
 all:	$(TARGETS)
 	@echo Ready to install kernel in $(shell pwd)/vmlinux.gz

arch/i386/Makefile

@@ -98,8 +98,8 @@ core-y					+= arch/i386/kernel/ arch/i386/mm/ arch/i386/$(MACHINE)/
 drivers-$(CONFIG_MATH_EMULATION)	+= arch/i386/math-emu/
 drivers-$(CONFIG_PCI)			+= arch/i386/pci/
 
-CFLAGS += -I$(TOPDIR)/arch/i386/$(MACHINE)
-AFLAGS += -I$(TOPDIR)/arch/i386/$(MACHINE)
+CFLAGS += -Iarch/i386/$(MACHINE)
+AFLAGS += -Iarch/i386/$(MACHINE)
 
 MAKEBOOT = +$(MAKE) -C arch/$(ARCH)/boot
 

arch/i386/boot/Makefile

@@ -44,7 +44,7 @@ bzImage: IMAGE_OFFSET := 0x100000
 bzImage: EXTRA_AFLAGS := -traditional $(SVGA_MODE) $(RAMDISK) -D__BIG_KERNEL__
 bzImage: BUILDFLAGS   := -b
 
-quiet_cmd_image = BUILD  $(RELDIR)/$@
+quiet_cmd_image = BUILD   $(echo_target)
 cmd_image = tools/build $(BUILDFLAGS) bootsect setup vmlinux.bin \
 			$(ROOT_DEV) > $@
 

arch/sparc/Makefile

@@ -41,8 +41,7 @@ core-y += arch/sparc/kernel/ arch/sparc/mm/ arch/sparc/math-emu/
 libs-y += arch/sparc/prom/ arch/sparc/lib/
 
 # Export what is needed by arch/sparc/boot/Makefile
-export CORE_FILES
-export INIT
+export init-y core-y drivers-y net-y libs-y HEAD
 
 image: vmlinux
 	$(MAKE) -C arch/sparc/boot image

arch/sparc/boot/Makefile

@@ -22,9 +22,8 @@ btfixupprep: btfixupprep.c
 clean:
 	rm -f btfixupprep piggyback tftpboot.img btfix.o btfix.s image
 
-BTOBJS := $(HEAD) $(INIT)
-BTLIBS := $(CORE_FILES) $(LIBS) \
-	$(DRIVERS) $(NETWORKS)
+BTOBJS := $(HEAD) $(init-y)
+BTLIBS := $(core-y) $(LIBS) $(drivers-y) $(net-y)
 
 # Actual linking
 image: btfix.o

drivers/acpi/Makefile

@@ -4,7 +4,7 @@
 
 export ACPI_CFLAGS
 
-ACPI_CFLAGS	:= -D_LINUX -I$(CURDIR)/include
+ACPI_CFLAGS	:= -D_LINUX -Idrivers/acpi/include
 
 ifdef CONFIG_ACPI_DEBUG
   ACPI_CFLAGS	+= -DACPI_DEBUG_OUTPUT

drivers/acpi/dispatcher/Makefile

@@ -2,7 +2,8 @@
 # Makefile for all Linux ACPI interpreter subdirectories
 #
 
-obj-$(CONFIG_ACPI_INTERPRETER) := $(patsubst %.c,%.o,$(wildcard *.c))
+obj-y := dsfield.o   dsmthdat.o  dsopcode.o  dswexec.o  dswscope.o \
+	 dsmethod.o  dsobject.o  dsutils.o   dswload.o  dswstate.o
 
 EXTRA_CFLAGS += $(ACPI_CFLAGS)
 

drivers/acpi/events/Makefile

@@ -2,7 +2,8 @@
 # Makefile for all Linux ACPI interpreter subdirectories
 #
 
-obj-$(CONFIG_ACPI_INTERPRETER) := $(patsubst %.c,%.o,$(wildcard *.c))
+obj-y := evevent.o  evregion.o  evsci.o    evxfevnt.o \
+	 evmisc.o   evrgnini.o  evxface.o  evxfregn.o
 
 EXTRA_CFLAGS += $(ACPI_CFLAGS)
 

drivers/acpi/executer/Makefile

@@ -2,7 +2,10 @@
 # Makefile for all Linux ACPI interpreter subdirectories
 #
 
-obj-$(CONFIG_ACPI_INTERPRETER) := $(patsubst %.c,%.o,$(wildcard *.c))
+obj-y := exconfig.o  exfield.o  exnames.o   exoparg6.o  exresolv.o  exstorob.o\
+	 exconvrt.o  exfldio.o  exoparg1.o  exprep.o    exresop.o   exsystem.o\
+	 excreate.o  exmisc.o   exoparg2.o  exregion.o  exstore.o   exutils.o \
+	 exdump.o    exmutex.o  exoparg3.o  exresnte.o  exstoren.o
 
 EXTRA_CFLAGS += $(ACPI_CFLAGS)
 

drivers/acpi/hardware/Makefile

@@ -2,7 +2,7 @@
 # Makefile for all Linux ACPI interpreter subdirectories
 #
 
-obj-$(CONFIG_ACPI_INTERPRETER) := $(patsubst %.c,%.o,$(wildcard *.c))
+obj-y := hwacpi.o  hwgpe.o  hwregs.o  hwsleep.o  hwtimer.o
 
 EXTRA_CFLAGS += $(ACPI_CFLAGS)
 

drivers/acpi/namespace/Makefile

@@ -2,7 +2,9 @@
 # Makefile for all Linux ACPI interpreter subdirectories
 #
 
-obj-$(CONFIG_ACPI_INTERPRETER) := $(patsubst %.c,%.o,$(wildcard *.c))
+obj-y := nsaccess.o  nsdumpdv.o  nsload.o    nssearch.o  nsxfeval.o \
+	 nsalloc.o   nseval.o    nsnames.o   nsutils.o   nsxfname.o \
+	 nsdump.o    nsinit.o    nsobject.o  nswalk.o    nsxfobj.o
 
 EXTRA_CFLAGS += $(ACPI_CFLAGS)
 

drivers/acpi/parser/Makefile

@@ -2,7 +2,8 @@
 # Makefile for all Linux ACPI interpreter subdirectories
 #
 
-obj-$(CONFIG_ACPI_INTERPRETER) := $(patsubst %.c,%.o,$(wildcard *.c))
+obj-y := psargs.o    psparse.o  pstree.o   pswalk.o  \
+	 psopcode.o  psscope.o  psutils.o  psxface.o
 
 EXTRA_CFLAGS += $(ACPI_CFLAGS)
 

drivers/acpi/resources/Makefile

@@ -2,7 +2,8 @@
 # Makefile for all Linux ACPI interpreter subdirectories
 #
 
-obj-$(CONFIG_ACPI_INTERPRETER) := $(patsubst %.c,%.o,$(wildcard *.c))
+obj-y := rsaddr.o  rscreate.o  rsio.o   rslist.o    rsmisc.o   rsxface.o \
+	 rscalc.o  rsdump.o    rsirq.o  rsmemory.o  rsutils.o
 
 EXTRA_CFLAGS += $(ACPI_CFLAGS)
 

drivers/acpi/tables/Makefile

@@ -2,7 +2,8 @@
 # Makefile for all Linux ACPI interpreter subdirectories
 #
 
-obj-$(CONFIG_ACPI_INTERPRETER) := $(patsubst %.c,%.o,$(wildcard *.c))
+obj-y := tbconvrt.o  tbget.o     tbrsdt.o   tbxface.o  \
+	 tbgetall.o  tbinstal.o  tbutils.o  tbxfroot.o
 
 EXTRA_CFLAGS += $(ACPI_CFLAGS)
 

drivers/acpi/utilities/Makefile

@@ -2,7 +2,8 @@
 # Makefile for all Linux ACPI interpreter subdirectories
 #
 
-obj-$(CONFIG_ACPI_INTERPRETER) := $(patsubst %.c,%.o,$(wildcard *.c))
+obj-y := utalloc.o  utdebug.o   uteval.o    utinit.o  utmisc.o    utxface.o \
+	 utcopy.o   utdelete.o  utglobal.o  utmath.o  utobject.o
 
 EXTRA_CFLAGS += $(ACPI_CFLAGS)
 

drivers/ide/arm/Makefile

@@ -2,6 +2,6 @@
 obj-$(CONFIG_BLK_DEV_IDE_ICSIDE)	+= icside.o
 obj-$(CONFIG_BLK_DEV_IDE_RAPIDE)	+= rapide.o
 
-EXTRA_CFLAGS	:= -I../
+EXTRA_CFLAGS	:= -Idrivers/ide
 
 include $(TOPDIR)/Rules.make

drivers/ide/legacy/Makefile

@@ -17,6 +17,6 @@ obj-$(CONFIG_BLK_DEV_IDECS)		+= ide-cs.o
 # Last of all
 obj-$(CONFIG_BLK_DEV_HD)		+= hd.o
 
-EXTRA_CFLAGS	:= -I../
+EXTRA_CFLAGS	:= -Idrivers/ide
 
 include $(TOPDIR)/Rules.make

drivers/ide/pci/Makefile

@@ -31,6 +31,6 @@ obj-$(CONFIG_BLK_DEV_VIA82CXXX)		+= via82cxxx.o
 # Must appear at the end of the block
 obj-$(CONFIG_BLK_DEV_GENERIC)          += generic.o
 
-EXTRA_CFLAGS	:= -I../
+EXTRA_CFLAGS	:= -Idrivers/ide
 
 include $(TOPDIR)/Rules.make

drivers/ide/ppc/Makefile

@@ -3,6 +3,6 @@ obj-$(CONFIG_BLK_DEV_MPC8xx_IDE)	+= mpc8xx.o
 obj-$(CONFIG_BLK_DEV_IDE_PMAC)		+= pmac.o
 obj-$(CONFIG_BLK_DEV_IDE_SWARM)		+= swarm.o
 
-EXTRA_CFLAGS	:= -I../
+EXTRA_CFLAGS	:= -Idrivers/ide
 
 include $(TOPDIR)/Rules.make

drivers/isdn/hisax/Makefile

@@ -63,7 +63,7 @@ hisax-objs-$(CONFIG_HISAX_ENTERNOW_PCI) += enternow_pci.o amd7930_fn.o
 
 hisax-objs += $(hisax-objs-y)
 
-CERT := $(shell md5sum -c md5sums.asc >> /dev/null;echo $$?)
+CERT := $(shell cd $(src); md5sum -c md5sums.asc > /dev/null 2> /dev/null ;echo $$?)
 CFLAGS_cert.o := -DCERTIFICATION=$(CERT)
 
 include $(TOPDIR)/Rules.make

drivers/isdn/i4l/isdn_ppp.h

@@ -27,7 +27,7 @@ int  isdn_ppp_xmit(struct sk_buff *, struct net_device *);
 #else
 
 static inline int
-isdn_ppp_xmit(struct sk_buff *, struct net_device *);
+isdn_ppp_xmit(struct sk_buff *, struct net_device *)
 {
 	return 0;
 }

drivers/message/fusion/Makefile

@@ -13,7 +13,7 @@
 #			# sparc64
 #EXTRA_CFLAGS += -gstabs+
 
-EXTRA_CFLAGS += -I. ${MPT_CFLAGS}
+EXTRA_CFLAGS += ${MPT_CFLAGS}
 
 # Fusion MPT drivers; recognized debug defines...
 #  MPT general:

drivers/net/sk98lin/Makefile

@@ -55,7 +55,7 @@ endif
 # SK_DBGCAT_DRV_INT_SRC         0x04000000      interrupts sources
 # SK_DBGCAT_DRV_EVENT           0x08000000      driver events
 
-EXTRA_CFLAGS += -I. -DSK_USE_CSUM $(DBGDEF)
+EXTRA_CFLAGS += -Idrivers/net/sk98lin -DSK_USE_CSUM $(DBGDEF)
 
 include $(TOPDIR)/Rules.make
 

drivers/net/skfp/Makefile

@@ -17,7 +17,7 @@ skfp-objs :=  skfddi.o    hwmtm.o    fplustm.o  smt.o      cfm.o     \
 #   projects. To keep the source common for all those drivers (and
 #   thus simplify fixes to it), please do not clean it up!
 
-EXTRA_CFLAGS += -I. -DPCI -DMEM_MAPPED_IO -Wno-strict-prototypes 
+EXTRA_CFLAGS += -Idrivers/net/skfp -DPCI -DMEM_MAPPED_IO -Wno-strict-prototypes 
 
 include $(TOPDIR)/Rules.make
 

drivers/pci/Makefile

@@ -40,6 +40,6 @@ $(obj)/names.o: $(obj)/devlist.h $(obj)/classlist.h
 # And that's how to generate them
 
 $(obj)/devlist.h: $(src)/pci.ids $(obj)/gen-devlist
-	$(obj)/gen-devlist < $<
+	( cd $(obj); ./gen-devlist ) < $<
 
 $(obj)/classlist.h: $(obj)/devlist.h

drivers/scsi/sym53c8xx_2/Makefile

@@ -3,7 +3,5 @@
 sym53c8xx-objs := sym_fw.o sym_glue.o sym_hipd.o sym_malloc.o sym_misc.o sym_nvram.o
 obj-$(CONFIG_SCSI_SYM53C8XX_2) := sym53c8xx.o
 
-EXTRA_CFLAGS += -I.
-
 include $(TOPDIR)/Rules.make
 

drivers/usb/storage/Makefile

@@ -5,7 +5,7 @@
 # Rewritten to use lists instead of if-statements.
 #
 
-EXTRA_CFLAGS	:= -I../../scsi/
+EXTRA_CFLAGS	:= -Idrivers/scsi
 
 obj-$(CONFIG_USB_STORAGE)	+= usb-storage.o
 

drivers/zorro/Makefile

@@ -18,4 +18,4 @@ $(obj)/names.o: $(obj)/devlist.h
 # And that's how to generate them
 
 $(obj)/devlist.h: $(src)/zorro.ids $(obj)/gen-devlist
-	$(obj)/gen-devlist < $<
+	( cd $(obj); ./gen-devlist ) < $<

fs/xfs/Makefile

@@ -32,15 +32,10 @@
 # Makefile for XFS on Linux.
 #
 
-
-# we also have source in the subdirectories..
-vpath %.c =  . linux pagebuf support
-
-
-# This needs -I. because everything does #include <xfs.h> instead of "xfs.h".
+# This needs -I because everything does #include <xfs.h> instead of "xfs.h".
 # The code is wrong, local files should be included using "xfs.h", not <xfs.h>
 # but I am not going to change every file at the moment.
-EXTRA_CFLAGS +=	 -I. -funsigned-char
+EXTRA_CFLAGS +=	 -Ifs/xfs -funsigned-char
 
 ifeq ($(CONFIG_XFS_DEBUG),y)
 	EXTRA_CFLAGS += -g -DSTATIC="" -DDEBUG -DXFSDEBUG
@@ -49,7 +44,8 @@ ifeq ($(CONFIG_PAGEBUF_DEBUG),y)
 	EXTRA_CFLAGS += -DPAGEBUF_TRACE
 endif
 
-export-objs			:= page_buf.o ktrace.o xfs_globals.o
+export-objs			:= pagebuf/page_buf.o support/ktrace.o \
+				   linux/xfs_globals.o
 
 obj-$(CONFIG_XFS_FS)		+= xfs.o
 
@@ -65,8 +61,8 @@ xfs-obj-$(CONFIG_XFS_QUOTA)	+= xfs_dquot.o \
 xfs-obj-$(CONFIG_FS_POSIX_ACL)	+= xfs_acl.o
 xfs-obj-$(CONFIG_FS_POSIX_CAP)	+= xfs_cap.o
 xfs-obj-$(CONFIG_FS_POSIX_MAC)	+= xfs_mac.o
-xfs-obj-$(CONFIG_PROC_FS)	+= xfs_stats.o
-xfs-obj-$(CONFIG_SYSCTL)	+= xfs_sysctl.o
+xfs-obj-$(CONFIG_PROC_FS)	+= linux/xfs_stats.o
+xfs-obj-$(CONFIG_SYSCTL)	+= linux/xfs_sysctl.o
 
 
 xfs-objs			+= $(xfs-obj-y) \
@@ -118,11 +114,13 @@ xfs-objs			+= $(xfs-obj-y) \
 				   xfs_rw.o
 
 # Objects in pagebuf/
-xfs-objs			+= page_buf.o \
-				   page_buf_locking.o
+xfs-objs			+= $(addprefix pagebuf/, \
+				   page_buf.o \
+				   page_buf_locking.o)
 
 # Objects in linux/
-xfs-objs			+= xfs_aops.o \
+xfs-objs			+= $(addprefix linux/, \
+				   xfs_aops.o \
 				   xfs_behavior.o \
 				   xfs_file.o \
 				   xfs_fs_subr.o \
@@ -131,16 +129,17 @@ xfs-objs			+= xfs_aops.o \
 				   xfs_iops.o \
 				   xfs_lrw.o \
 				   xfs_super.o \
-				   xfs_vnode.o
+				   xfs_vnode.o)
 
 # Objects in support/
-xfs-objs			+= debug.o \
+xfs-objs			+= $(addprefix support/, \
+				   debug.o \
 				   kmem.o \
 				   ktrace.o \
 				   move.o \
 				   mrlock.o \
 				   qsort.o \
-				   uuid.o
+				   uuid.o)
 
 # If both xfs and kdb modules are built in then xfsidbg is built in.  If xfs is
 # a module and kdb modules are being compiled then xfsidbg must be a module, to
@@ -155,6 +154,6 @@ ifneq ($(CONFIG_KDB_MODULES),)
   endif
 endif
 
-CFLAGS_xfsidbg.o += -I $(TOPDIR)/arch/$(ARCH)/kdb
+CFLAGS_xfsidbg.o += -Iarch/$(ARCH)/kdb
 
 include $(TOPDIR)/Rules.make

scripts/Makefile

@@ -9,18 +9,18 @@
 # conmakehash:	 Create arrays for initializing the kernel console tables
 # tkparse: 	 Used by xconfig
 
-all: fixdep split-include docproc conmakehash __chmod
+EXTRA_TARGETS := fixdep split-include docproc conmakehash
+
+# Yikes. We need to build this stuff here even if the user only wants
+# modules.
+
+KBUILD_BUILTIN := 1
 
 # The following temporary rule will make sure that people's
 # trees get updated to the right permissions, since patch(1)
 # can't do it
 # ---------------------------------------------------------------------------
 
-.PHONY: __chmod
-
-__chmod: kernel-doc mkcompile_h makelst
-	@chmod a+x $^
-
 host-progs := fixdep split-include conmakehash docproc tkparse
 tkparse-objs := tkparse.o tkcond.o tkgen.o
 
@@ -30,7 +30,7 @@ include $(TOPDIR)/Rules.make
 # but it is not worth the effort to generate the dependencies.
 # The alternative solution to always generate it is fairly fast.
 # FORCE it to remake
-$(obj)/kconfig.tk: $(srctree)/arch/$(ARCH)/config.in tkparse FORCE
+$(obj)/kconfig.tk: $(srctree)/arch/$(ARCH)/config.in $(obj)/tkparse FORCE
 	@echo '  Generating $@'
 	@(                                                      \
 	if [ -f /usr/local/bin/wish ];        then              \
@@ -51,15 +51,13 @@ $(obj)/kconfig.tk: $(srctree)/arch/$(ARCH)/config.in tkparse FORCE
 # Targets hardcoded and wellknow in top-level makefile
 .PHONY: lxdialog
 lxdialog:
-	$(MAKE) -C lxdialog all
+	$(call descend,scripts/lxdialog,)
 
 # fixdep is needed to compile other host programs
 $(obj)/split-include $(obj)/docproc $(addprefix $(obj)/,$(tkparse-objs)) \
 $(obj)/conmakehash lxdialog: $(obj)/fixdep
 
 mrproper:
-	@echo 'Making mrproper (scripts)'
-	@rm -f $(tkparse-objs) $(obj)/kconfig.tk
-	@rm -f core $(host-progs)
-	@$(MAKE) -C lxdialog mrproper
+	@rm -f $(addprefix $(obj)/,$(tkparse-objs) $(obj)/kconfig.tk core $(host-progs))
+	@$(call descend,scripts/lxdialog,mrproper)
 

scripts/lxdialog/Makefile

@@ -20,10 +20,14 @@ host-progs := lxdialog
 lxdialog-objs := checklist.o menubox.o textbox.o yesno.o inputbox.o \
 		 util.o lxdialog.o msgbox.o
 
-all: ncurses lxdialog
+EXTRA_TARGETS := lxdialog
+
+first_rule: ncurses
 
 include $(TOPDIR)/Rules.make
 
+.PHONY: ncurses
+
 ncurses:
 	@echo "main() {}" > lxtemp.c
 	@if $(HOSTCC) lxtemp.c  $(HOST_LOADLIBES); then \
@@ -40,4 +44,4 @@ ncurses:
 	fi
 
 mrproper:
-	@rm -f core $(host-progs) $(lxdialog-objs) ncurses
+	@rm -f $(addprefix $(obj)/,core $(host-progs) $(lxdialog-objs) ncurses)