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Oops. Forgot these....
This commit is contained in:
Eric Andersen
parent
bdfd0d78bc
commit
4bcdd72142
195
Rules.mak
Normal file
195
Rules.mak
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#
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# This file contains rules which are shared between multiple Makefiles.
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#
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#
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# False targets.
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#
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.PHONY: dummy
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#
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# Special variables which should not be exported
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#
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unexport EXTRA_AFLAGS
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unexport EXTRA_CFLAGS
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unexport EXTRA_LDFLAGS
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unexport EXTRA_ARFLAGS
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unexport SUBDIRS
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unexport SUB_DIRS
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unexport ALL_SUB_DIRS
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unexport O_TARGET
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unexport obj-y
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unexport obj-n
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unexport obj-
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unexport export-objs
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unexport subdir-y
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unexport subdir-n
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unexport subdir-
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#
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# Get things started.
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#
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first_rule: sub_dirs
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$(MAKE) all_targets
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SUB_DIRS := $(subdir-y)
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ALL_SUB_DIRS := $(sort $(subdir-y) $(subdir-n) $(subdir-))
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#
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# Common rules
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#
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%.s: %.c
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$(CC) $(CFLAGS) $(EXTRA_CFLAGS) $(CFLAGS_$@) -S $< -o $@
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%.i: %.c
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$(CPP) $(CFLAGS) $(EXTRA_CFLAGS) $(CFLAGS_$@) $< > $@
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%.o: %.c
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$(CC) $(CFLAGS) $(EXTRA_CFLAGS) $(CFLAGS_$@) -c -o $@ $<
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@ ( \
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echo 'ifeq ($(strip $(subst $(comma),:,$(CFLAGS) $(EXTRA_CFLAGS) $(CFLAGS_$@))),$$(strip $$(subst $$(comma),:,$$(CFLAGS) $$(EXTRA_CFLAGS) $$(CFLAGS_$@))))' ; \
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echo 'FILES_FLAGS_UP_TO_DATE += $@' ; \
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echo 'endif' \
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) > $(dir $@)/.$(notdir $@).flags
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%.o: %.s
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$(AS) $(AFLAGS) $(EXTRA_CFLAGS) -o $@ $<
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# Old makefiles define their own rules for compiling .S files,
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# but these standard rules are available for any Makefile that
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# wants to use them. Our plan is to incrementally convert all
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# the Makefiles to these standard rules. -- rmk, mec
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ifdef USE_STANDARD_AS_RULE
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%.s: %.S
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$(CPP) $(AFLAGS) $(EXTRA_AFLAGS) $(AFLAGS_$@) $< > $@
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%.o: %.S
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$(CC) $(AFLAGS) $(EXTRA_AFLAGS) $(AFLAGS_$@) -c -o $@ $<
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endif
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%.lst: %.c
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$(CC) $(CFLAGS) $(EXTRA_CFLAGS) $(CFLAGS_$@) -g -c -o $*.o $<
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$(TOPDIR)/scripts/makelst $* $(TOPDIR) $(OBJDUMP)
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#
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#
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#
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all_targets: $(O_TARGET) $(L_TARGET)
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#
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# Rule to compile a set of .o files into one .o file
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#
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ifdef O_TARGET
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$(O_TARGET): $(obj-y)
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rm -f $@
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ifneq "$(strip $(obj-y))" ""
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$(LD) $(EXTRA_LDFLAGS) -r -o $@ $(filter $(obj-y), $^)
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else
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$(AR) rcs $@
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endif
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@ ( \
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echo 'ifeq ($(strip $(subst $(comma),:,$(EXTRA_LDFLAGS) $(obj-y))),$$(strip $$(subst $$(comma),:,$$(EXTRA_LDFLAGS) $$(obj-y))))' ; \
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echo 'FILES_FLAGS_UP_TO_DATE += $@' ; \
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echo 'endif' \
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) > $(dir $@)/.$(notdir $@).flags
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endif # O_TARGET
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#
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# Rule to compile a set of .o files into one .a file
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#
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ifdef L_TARGET
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$(L_TARGET): $(obj-y)
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rm -f $@
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$(AR) $(EXTRA_ARFLAGS) rcs $@ $(obj-y)
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@ ( \
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echo 'ifeq ($(strip $(subst $(comma),:,$(EXTRA_ARFLAGS) $(obj-y))),$$(strip $$(subst $$(comma),:,$$(EXTRA_ARFLAGS) $$(obj-y))))' ; \
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echo 'FILES_FLAGS_UP_TO_DATE += $@' ; \
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echo 'endif' \
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) > $(dir $@)/.$(notdir $@).flags
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endif
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#
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# This make dependencies quickly
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#
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fastdep: dummy
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$(TOPDIR)/scripts/mkdep $(CFLAGS) $(EXTRA_CFLAGS) -- $(wildcard *.[chS]) > .depend
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ifdef ALL_SUB_DIRS
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$(MAKE) $(patsubst %,_sfdep_%,$(ALL_SUB_DIRS)) _FASTDEP_ALL_SUB_DIRS="$(ALL_SUB_DIRS)"
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endif
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ifdef _FASTDEP_ALL_SUB_DIRS
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$(patsubst %,_sfdep_%,$(_FASTDEP_ALL_SUB_DIRS)):
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$(MAKE) -C $(patsubst _sfdep_%,%,$@) fastdep
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endif
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#
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# A rule to make subdirectories
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#
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subdir-list = $(sort $(patsubst %,_subdir_%,$(SUB_DIRS)))
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sub_dirs: dummy $(subdir-list)
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ifdef SUB_DIRS
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$(subdir-list) : dummy
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$(MAKE) -C $(patsubst _subdir_%,%,$@)
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endif
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#
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# A rule to do nothing
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#
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dummy:
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#
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# This is useful for testing
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#
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script:
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$(SCRIPT)
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#
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# include dependency files if they exist
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#
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ifneq ($(wildcard .depend),)
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include .depend
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endif
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ifneq ($(wildcard $(TOPDIR)/.hdepend),)
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include $(TOPDIR)/.hdepend
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endif
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#
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# Find files whose flags have changed and force recompilation.
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# For safety, this works in the converse direction:
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# every file is forced, except those whose flags are positively up-to-date.
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#
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FILES_FLAGS_UP_TO_DATE :=
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# For use in expunging commas from flags, which mung our checking.
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comma = ,
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FILES_FLAGS_EXIST := $(wildcard .*.flags)
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ifneq ($(FILES_FLAGS_EXIST),)
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include $(FILES_FLAGS_EXIST)
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endif
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FILES_FLAGS_CHANGED := $(strip \
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$(filter-out $(FILES_FLAGS_UP_TO_DATE), \
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$(O_TARGET) $(L_TARGET) $(active-objs) \
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))
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# A kludge: .S files don't get flag dependencies (yet),
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# because that will involve changing a lot of Makefiles. Also
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# suppress object files explicitly listed in $(IGNORE_FLAGS_OBJS).
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# This allows handling of assembly files that get translated into
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# multiple object files (see arch/ia64/lib/idiv.S, for example).
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FILES_FLAGS_CHANGED := $(strip \
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$(filter-out $(patsubst %.S, %.o, $(wildcard *.S) $(IGNORE_FLAGS_OBJS)), \
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$(FILES_FLAGS_CHANGED)))
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ifneq ($(FILES_FLAGS_CHANGED),)
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$(FILES_FLAGS_CHANGED): dummy
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endif
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35
applets/Makefile
Normal file
35
applets/Makefile
Normal file
@ -0,0 +1,35 @@
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# Makefile for busybox
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#
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# Copyright (C) 1999,2000,2001 by Erik Andersen <andersee@debian.org>
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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#
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TOPDIR :=..
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L_TARGET := applets.a
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EXTRA_CFLAGS+=-I $(TOPDIR)/applets
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obj-y :=
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obj-n :=
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obj- :=
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obj-y += applets.o busybox.o usage.o
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# Hand off to toplevel Rules.mak
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include $(TOPDIR)/Rules.mak
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clean:
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rm -f $(L_TARGET) *.o core
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