Makefile

   1 # Makefile for QEMU.
   2
   3 # Always point to the root of the build tree (needs GNU make).
   4 BUILD_DIR=$(CURDIR)
   5
   6 # All following code might depend on configuration variables
   7 ifneq ($(wildcard config-host.mak),)
   8 # Put the all: rule here so that config-host.mak can contain dependencies.
   9 all: build-all
  10 include config-host.mak
  11 include $(SRC_PATH)/rules.mak
  12 config-host.mak: $(SRC_PATH)/configure
  13         @echo $@ is out-of-date, running configure
  14         @sed -n "/.*Configured with/s/[^:]*: //p" $@ | sh
  15 else
  16 config-host.mak:
  17         @echo "Please call configure before running make!"
  18         @exit 1
  19 endif
  20
  21 GENERATED_HEADERS = config-host.h trace.h qemu-options.def
  22 ifeq ($(TRACE_BACKEND),dtrace)
  23 GENERATED_HEADERS += trace-dtrace.h
  24 endif
  25 GENERATED_HEADERS += qmp-commands.h qapi-types.h qapi-visit.h
  26 GENERATED_SOURCES += qmp-marshal.c qapi-types.c qapi-visit.c trace.c
  27
  28 # Don't try to regenerate Makefile or configure
  29 # We don't generate any of them
  30 Makefile: ;
  31 configure: ;
  32
  33 .PHONY: all clean cscope distclean dvi html info install install-doc \
  34         pdf recurse-all speed tar tarbin test build-all
  35
  36 $(call set-vpath, $(SRC_PATH))
  37
  38 LIBS+=-lz $(LIBS_TOOLS)
  39
  40 HELPERS-$(CONFIG_LINUX) = qemu-bridge-helper$(EXESUF)
  41
  42 ifdef BUILD_DOCS
  43 DOCS=qemu-doc.html qemu-tech.html qemu.1 qemu-img.1 qemu-nbd.8 QMP/qmp-commands.txt
  44 ifdef CONFIG_VIRTFS
  45 DOCS+=fsdev/virtfs-proxy-helper.1
  46 endif
  47 else
  48 DOCS=
  49 endif
  50
  51 SUBDIR_MAKEFLAGS=$(if $(V),,--no-print-directory) BUILD_DIR=$(BUILD_DIR)
  52 SUBDIR_DEVICES_MAK=$(patsubst %, %/config-devices.mak, $(TARGET_DIRS))
  53 SUBDIR_DEVICES_MAK_DEP=$(patsubst %, %/config-devices.mak.d, $(TARGET_DIRS))
  54
  55 config-all-devices.mak: $(SUBDIR_DEVICES_MAK)
  56         $(call quiet-command,cat $(SUBDIR_DEVICES_MAK) | grep =y | sort -u > $@,"  GEN   $@")
  57
  58 -include $(SUBDIR_DEVICES_MAK_DEP)
  59
  60 %/config-devices.mak: default-configs/%.mak
  61         $(call quiet-command,$(SHELL) $(SRC_PATH)/scripts/make_device_config.sh $@ $<, "  GEN   $@")
  62         @if test -f $@; then \
  63           if cmp -s $@.old $@; then \
  64             mv $@.tmp $@; \
  65             cp -p $@ $@.old; \
  66           else \
  67             if test -f $@.old; then \
  68               echo "WARNING: $@ (user modified) out of date.";\
  69             else \
  70               echo "WARNING: $@ out of date.";\
  71             fi; \
  72             echo "Run \"make defconfig\" to regenerate."; \
  73             rm $@.tmp; \
  74           fi; \
  75          else \
  76           mv $@.tmp $@; \
  77           cp -p $@ $@.old; \
  78          fi
  79
  80 defconfig:
  81         rm -f config-all-devices.mak $(SUBDIR_DEVICES_MAK)
  82
  83 -include config-all-devices.mak
  84
  85 build-all: $(DOCS) $(TOOLS) $(HELPERS-y) recurse-all
  86
  87 config-host.h: config-host.h-timestamp
  88 config-host.h-timestamp: config-host.mak
  89 qemu-options.def: $(SRC_PATH)/qemu-options.hx
  90         $(call quiet-command,sh $(SRC_PATH)/scripts/hxtool -h < $< > $@,"  GEN   $@")
  91
  92 SUBDIR_RULES=$(patsubst %,subdir-%, $(TARGET_DIRS))
  93
  94 subdir-%:
  95         $(call quiet-command,$(MAKE) $(SUBDIR_MAKEFLAGS) -C $* V="$(V)" TARGET_DIR="$*/" all,)
  96
  97 ifneq ($(wildcard config-host.mak),)
  98 include $(SRC_PATH)/Makefile.objs
  99 endif
 100
 101 subdir-libcacard: $(oslib-obj-y) $(trace-obj-y) qemu-timer-common.o
 102
 103 $(filter %-softmmu,$(SUBDIR_RULES)): $(universal-obj-y) $(trace-obj-y) $(common-obj-y) $(extra-obj-y) subdir-libdis
 104
 105 $(filter %-user,$(SUBDIR_RULES)): $(universal-obj-y) $(trace-obj-y) subdir-libdis-user subdir-libuser
 106
 107 ROMSUBDIR_RULES=$(patsubst %,romsubdir-%, $(ROMS))
 108 romsubdir-%:
 109         $(call quiet-command,$(MAKE) $(SUBDIR_MAKEFLAGS) -C pc-bios/$* V="$(V)" TARGET_DIR="$*/",)
 110
 111 ALL_SUBDIRS=$(TARGET_DIRS) $(patsubst %,pc-bios/%, $(ROMS))
 112
 113 recurse-all: $(SUBDIR_RULES) $(ROMSUBDIR_RULES)
 114
 115 audio/audio.o audio/fmodaudio.o: QEMU_CFLAGS += $(FMOD_CFLAGS)
 116
 117 QEMU_CFLAGS+=$(CURL_CFLAGS)
 118
 119 QEMU_CFLAGS += -I$(SRC_PATH)/include
 120
 121 ui/cocoa.o: ui/cocoa.m
 122
 123 ui/sdl.o audio/sdlaudio.o ui/sdl_zoom.o hw/baum.o: QEMU_CFLAGS += $(SDL_CFLAGS)
 124
 125 ui/vnc.o: QEMU_CFLAGS += $(VNC_TLS_CFLAGS)
 126
 127 bt-host.o: QEMU_CFLAGS += $(BLUEZ_CFLAGS)
 128
 129 version.o: $(SRC_PATH)/version.rc config-host.h
 130         $(call quiet-command,$(WINDRES) -I. -o $@ $<,"  RC    $(TARGET_DIR)$@")
 131
 132 version-obj-$(CONFIG_WIN32) += version.o
 133 ######################################################################
 134 # Support building shared library libcacard
 135
 136 .PHONY: libcacard.la install-libcacard
 137 ifeq ($(LIBTOOL),)
 138 libcacard.la:
 139         @echo "libtool is missing, please install and rerun configure"; exit 1
 140
 141 install-libcacard:
 142         @echo "libtool is missing, please install and rerun configure"; exit 1
 143 else
 144 libcacard.la: $(oslib-obj-y) qemu-timer-common.o $(addsuffix .lo, $(basename $(trace-obj-y)))
 145         $(call quiet-command,$(MAKE) $(SUBDIR_MAKEFLAGS) -C libcacard V="$(V)" TARGET_DIR="$*/" libcacard.la,)
 146
 147 install-libcacard: libcacard.la
 148         $(call quiet-command,$(MAKE) $(SUBDIR_MAKEFLAGS) -C libcacard V="$(V)" TARGET_DIR="$*/" install-libcacard,)
 149 endif
 150
 151 vscclient$(EXESUF): $(libcacard-y) $(oslib-obj-y) $(trace-obj-y) qemu-timer-common.o libcacard/vscclient.o
 152         $(call quiet-command,$(CC) $(LDFLAGS) -o $@ $^ $(libcacard_libs) $(LIBS),"  LINK  $@")
 153
 154 ######################################################################
 155
 156 qemu-img.o: qemu-img-cmds.h
 157
 158 tools-obj-y = $(oslib-obj-y) $(trace-obj-y) qemu-tool.o qemu-timer.o \
 159         qemu-timer-common.o main-loop.o notify.o iohandler.o cutils.o async.o
 160 tools-obj-$(CONFIG_POSIX) += compatfd.o
 161
 162 qemu-img$(EXESUF): qemu-img.o $(tools-obj-y) $(block-obj-y)
 163 qemu-nbd$(EXESUF): qemu-nbd.o $(tools-obj-y) $(block-obj-y)
 164 qemu-io$(EXESUF): qemu-io.o cmd.o $(tools-obj-y) $(block-obj-y)
 165
 166 qemu-bridge-helper$(EXESUF): qemu-bridge-helper.o
 167
 168 fsdev/virtfs-proxy-helper$(EXESUF): fsdev/virtfs-proxy-helper.o fsdev/virtio-9p-marshal.o oslib-posix.o $(trace-obj-y)
 169 fsdev/virtfs-proxy-helper$(EXESUF): LIBS += -lcap
 170
 171 qemu-img-cmds.h: $(SRC_PATH)/qemu-img-cmds.hx
 172         $(call quiet-command,sh $(SRC_PATH)/scripts/hxtool -h < $< > $@,"  GEN   $@")
 173
 174 qapi-dir := $(BUILD_DIR)/qapi-generated
 175 qemu-ga$(EXESUF): LIBS = $(LIBS_QGA)
 176 qemu-ga$(EXESUF): QEMU_CFLAGS += -I $(qapi-dir)
 177
 178 gen-out-type = $(subst .,-,$(suffix $@))
 179
 180 ifneq ($(wildcard config-host.mak),)
 181 include $(SRC_PATH)/tests/Makefile
 182 endif
 183
 184 $(qapi-dir)/qga-qapi-types.c $(qapi-dir)/qga-qapi-types.h :\
 185 $(SRC_PATH)/qapi-schema-guest.json $(SRC_PATH)/scripts/qapi-types.py
 186         $(call quiet-command,$(PYTHON) $(SRC_PATH)/scripts/qapi-types.py $(gen-out-type) -o "$(qapi-dir)" -p "qga-" < $<, "  GEN   $@")
 187 $(qapi-dir)/qga-qapi-visit.c $(qapi-dir)/qga-qapi-visit.h :\
 188 $(SRC_PATH)/qapi-schema-guest.json $(SRC_PATH)/scripts/qapi-visit.py
 189         $(call quiet-command,$(PYTHON) $(SRC_PATH)/scripts/qapi-visit.py $(gen-out-type) -o "$(qapi-dir)" -p "qga-" < $<, "  GEN   $@")
 190 $(qapi-dir)/qga-qmp-commands.h $(qapi-dir)/qga-qmp-marshal.c :\
 191 $(SRC_PATH)/qapi-schema-guest.json $(SRC_PATH)/scripts/qapi-commands.py
 192         $(call quiet-command,$(PYTHON) $(SRC_PATH)/scripts/qapi-commands.py $(gen-out-type) -o "$(qapi-dir)" -p "qga-" < $<, "  GEN   $@")
 193
 194 qapi-types.c qapi-types.h :\
 195 $(SRC_PATH)/qapi-schema.json $(SRC_PATH)/scripts/qapi-types.py
 196         $(call quiet-command,$(PYTHON) $(SRC_PATH)/scripts/qapi-types.py $(gen-out-type) -o "." < $<, "  GEN   $@")
 197 qapi-visit.c qapi-visit.h :\
 198 $(SRC_PATH)/qapi-schema.json $(SRC_PATH)/scripts/qapi-visit.py
 199         $(call quiet-command,$(PYTHON) $(SRC_PATH)/scripts/qapi-visit.py $(gen-out-type) -o "."  < $<, "  GEN   $@")
 200 qmp-commands.h qmp-marshal.c :\
 201 $(SRC_PATH)/qapi-schema.json $(SRC_PATH)/scripts/qapi-commands.py
 202         $(call quiet-command,$(PYTHON) $(SRC_PATH)/scripts/qapi-commands.py $(gen-out-type) -m -o "." < $<, "  GEN   $@")
 203
 204 QGALIB_OBJ=$(addprefix $(qapi-dir)/, qga-qapi-types.o qga-qapi-visit.o qga-qmp-marshal.o)
 205 QGALIB_GEN=$(addprefix $(qapi-dir)/, qga-qapi-types.h qga-qapi-visit.h qga-qmp-commands.h)
 206 $(QGALIB_OBJ): $(QGALIB_GEN)
 207 $(qga-obj-y) qemu-ga.o: $(QGALIB_GEN)
 208
 209 qemu-ga$(EXESUF): qemu-ga.o $(qga-obj-y) $(tools-obj-y) $(qapi-obj-y) $(qobject-obj-y) $(version-obj-y) $(QGALIB_OBJ)
 210
 211 QEMULIBS=libhw32 libhw64 libuser libdis libdis-user
 212
 213 clean:
 214 # avoid old build problems by removing potentially incorrect old files
 215         rm -f config.mak op-i386.h opc-i386.h gen-op-i386.h op-arm.h opc-arm.h gen-op-arm.h
 216         rm -f qemu-options.def
 217         rm -f *.o *.d *.a *.lo $(TOOLS) $(HELPERS-y) qemu-ga TAGS cscope.* *.pod *~ */*~
 218         rm -Rf .libs
 219         rm -f slirp/*.o slirp/*.d audio/*.o audio/*.d block/*.o block/*.d net/*.o net/*.d fsdev/*.o fsdev/*.d ui/*.o ui/*.d qapi/*.o qapi/*.d qga/*.o qga/*.d
 220         rm -f qom/*.o qom/*.d
 221         rm -f usb/*.o usb/*.d hw/*.o hw/*.d
 222         rm -f qemu-img-cmds.h
 223         rm -f trace/*.o trace/*.d
 224         rm -f trace-dtrace.dtrace trace-dtrace.dtrace-timestamp
 225         @# May not be present in GENERATED_HEADERS
 226         rm -f trace-dtrace.h trace-dtrace.h-timestamp
 227         rm -f $(foreach f,$(GENERATED_HEADERS),$(f) $(f)-timestamp)
 228         rm -f $(foreach f,$(GENERATED_SOURCES),$(f) $(f)-timestamp)
 229         rm -rf $(qapi-dir)
 230         $(MAKE) -C tests/tcg clean
 231         for d in $(ALL_SUBDIRS) $(QEMULIBS) libcacard; do \
 232         if test -d $$d; then $(MAKE) -C $$d $@ || exit 1; fi; \
 233         rm -f $$d/qemu-options.def; \
 234         done
 235
 236 distclean: clean
 237         rm -f config-host.mak config-host.h* config-host.ld $(DOCS) qemu-options.texi qemu-img-cmds.texi qemu-monitor.texi
 238         rm -f config-all-devices.mak
 239         rm -f roms/seabios/config.mak roms/vgabios/config.mak
 240         rm -f qemu-doc.info qemu-doc.aux qemu-doc.cp qemu-doc.cps qemu-doc.dvi
 241         rm -f qemu-doc.fn qemu-doc.fns qemu-doc.info qemu-doc.ky qemu-doc.kys
 242         rm -f qemu-doc.log qemu-doc.pdf qemu-doc.pg qemu-doc.toc qemu-doc.tp
 243         rm -f qemu-doc.vr
 244         rm -f config.log
 245         rm -f linux-headers/asm
 246         rm -f qemu-tech.info qemu-tech.aux qemu-tech.cp qemu-tech.dvi qemu-tech.fn qemu-tech.info qemu-tech.ky qemu-tech.log qemu-tech.pdf qemu-tech.pg qemu-tech.toc qemu-tech.tp qemu-tech.vr
 247         for d in $(TARGET_DIRS) $(QEMULIBS); do \
 248         rm -rf $$d || exit 1 ; \
 249         done
 250
 251 KEYMAPS=da     en-gb  et  fr     fr-ch  is  lt  modifiers  no  pt-br  sv \
 252 ar      de     en-us  fi  fr-be  hr     it  lv  nl         pl  ru     th \
 253 common  de-ch  es     fo  fr-ca  hu     ja  mk  nl-be      pt  sl     tr
 254
 255 ifdef INSTALL_BLOBS
 256 BLOBS=bios.bin sgabios.bin vgabios.bin vgabios-cirrus.bin \
 257 vgabios-stdvga.bin vgabios-vmware.bin vgabios-qxl.bin \
 258 ppc_rom.bin openbios-sparc32 openbios-sparc64 openbios-ppc \
 259 pxe-e1000.rom pxe-eepro100.rom pxe-ne2k_pci.rom \
 260 pxe-pcnet.rom pxe-rtl8139.rom pxe-virtio.rom \
 261 qemu-icon.bmp \
 262 bamboo.dtb petalogix-s3adsp1800.dtb petalogix-ml605.dtb \
 263 mpc8544ds.dtb \
 264 multiboot.bin linuxboot.bin kvmvapic.bin \
 265 s390-zipl.rom \
 266 spapr-rtas.bin slof.bin \
 267 palcode-clipper
 268 else
 269 BLOBS=
 270 endif
 271
 272 install-doc: $(DOCS)
 273         $(INSTALL_DIR) "$(DESTDIR)$(qemu_docdir)"
 274         $(INSTALL_DATA) qemu-doc.html  qemu-tech.html "$(DESTDIR)$(qemu_docdir)"
 275         $(INSTALL_DATA) QMP/qmp-commands.txt "$(DESTDIR)$(qemu_docdir)"
 276 ifdef CONFIG_POSIX
 277         $(INSTALL_DIR) "$(DESTDIR)$(mandir)/man1"
 278         $(INSTALL_DATA) qemu.1 qemu-img.1 "$(DESTDIR)$(mandir)/man1"
 279         $(INSTALL_DIR) "$(DESTDIR)$(mandir)/man8"
 280         $(INSTALL_DATA) qemu-nbd.8 "$(DESTDIR)$(mandir)/man8"
 281 endif
 282 ifdef CONFIG_VIRTFS
 283         $(INSTALL_DIR) "$(DESTDIR)$(mandir)/man1"
 284         $(INSTALL_DATA) fsdev/virtfs-proxy-helper.1 "$(DESTDIR)$(mandir)/man1"
 285 endif
 286
 287 install-datadir:
 288         $(INSTALL_DIR) "$(DESTDIR)$(qemu_datadir)"
 289
 290 install-confdir:
 291         $(INSTALL_DIR) "$(DESTDIR)$(qemu_confdir)"
 292
 293 install-sysconfig: install-datadir install-confdir
 294         $(INSTALL_DATA) $(SRC_PATH)/sysconfigs/target/target-x86_64.conf "$(DESTDIR)$(qemu_confdir)"
 295         $(INSTALL_DATA) $(SRC_PATH)/sysconfigs/target/cpus-x86_64.conf "$(DESTDIR)$(qemu_datadir)"
 296
 297 install: all $(if $(BUILD_DOCS),install-doc) install-sysconfig install-datadir
 298         $(INSTALL_DIR) "$(DESTDIR)$(bindir)"
 299 ifneq ($(TOOLS),)
 300         $(INSTALL_PROG) $(STRIP_OPT) $(TOOLS) "$(DESTDIR)$(bindir)"
 301 endif
 302 ifneq ($(HELPERS-y),)
 303         $(INSTALL_DIR) "$(DESTDIR)$(libexecdir)"
 304         $(INSTALL_PROG) $(STRIP_OPT) $(HELPERS-y) "$(DESTDIR)$(libexecdir)"
 305 endif
 306 ifneq ($(BLOBS),)
 307         set -e; for x in $(BLOBS); do \
 308                 $(INSTALL_DATA) $(SRC_PATH)/pc-bios/$$x "$(DESTDIR)$(qemu_datadir)"; \
 309         done
 310 endif
 311         $(INSTALL_DIR) "$(DESTDIR)$(qemu_datadir)/keymaps"
 312         set -e; for x in $(KEYMAPS); do \
 313                 $(INSTALL_DATA) $(SRC_PATH)/pc-bios/keymaps/$$x "$(DESTDIR)$(qemu_datadir)/keymaps"; \
 314         done
 315         for d in $(TARGET_DIRS); do \
 316         $(MAKE) -C $$d $@ || exit 1 ; \
 317         done
 318
 319 # various test targets
 320 test speed: all
 321         $(MAKE) -C tests/tcg $@
 322
 323 .PHONY: TAGS
 324 TAGS:
 325         find "$(SRC_PATH)" -name '*.[hc]' -print0 | xargs -0 etags
 326
 327 cscope:
 328         rm -f ./cscope.*
 329         find "$(SRC_PATH)" -name "*.[chsS]" -print | sed 's,^\./,,' > ./cscope.files
 330         cscope -b
 331
 332 # documentation
 333 MAKEINFO=makeinfo
 334 MAKEINFOFLAGS=--no-headers --no-split --number-sections
 335 TEXIFLAG=$(if $(V),,--quiet)
 336 %.dvi: %.texi
 337         $(call quiet-command,texi2dvi $(TEXIFLAG) -I . $<,"  GEN   $@")
 338
 339 %.html: %.texi
 340         $(call quiet-command,LC_ALL=C $(MAKEINFO) $(MAKEINFOFLAGS) --html $< -o $@, \
 341         "  GEN   $@")
 342
 343 %.info: %.texi
 344         $(call quiet-command,$(MAKEINFO) $< -o $@,"  GEN   $@")
 345
 346 %.pdf: %.texi
 347         $(call quiet-command,texi2pdf $(TEXIFLAG) -I . $<,"  GEN   $@")
 348
 349 qemu-options.texi: $(SRC_PATH)/qemu-options.hx
 350         $(call quiet-command,sh $(SRC_PATH)/scripts/hxtool -t < $< > $@,"  GEN   $@")
 351
 352 qemu-monitor.texi: $(SRC_PATH)/hmp-commands.hx
 353         $(call quiet-command,sh $(SRC_PATH)/scripts/hxtool -t < $< > $@,"  GEN   $@")
 354
 355 QMP/qmp-commands.txt: $(SRC_PATH)/qmp-commands.hx
 356         $(call quiet-command,sh $(SRC_PATH)/scripts/hxtool -q < $< > $@,"  GEN   $@")
 357
 358 qemu-img-cmds.texi: $(SRC_PATH)/qemu-img-cmds.hx
 359         $(call quiet-command,sh $(SRC_PATH)/scripts/hxtool -t < $< > $@,"  GEN   $@")
 360
 361 qemu.1: qemu-doc.texi qemu-options.texi qemu-monitor.texi
 362         $(call quiet-command, \
 363           perl -Ww -- $(SRC_PATH)/scripts/texi2pod.pl $< qemu.pod && \
 364           $(POD2MAN) --section=1 --center=" " --release=" " qemu.pod > $@, \
 365           "  GEN   $@")
 366
 367 qemu-img.1: qemu-img.texi qemu-img-cmds.texi
 368         $(call quiet-command, \
 369           perl -Ww -- $(SRC_PATH)/scripts/texi2pod.pl $< qemu-img.pod && \
 370           $(POD2MAN) --section=1 --center=" " --release=" " qemu-img.pod > $@, \
 371           "  GEN   $@")
 372
 373 fsdev/virtfs-proxy-helper.1: fsdev/virtfs-proxy-helper.texi
 374         $(call quiet-command, \
 375           perl -Ww -- $(SRC_PATH)/scripts/texi2pod.pl $< fsdev/virtfs-proxy-helper.pod && \
 376           $(POD2MAN) --section=1 --center=" " --release=" " fsdev/virtfs-proxy-helper.pod > $@, \
 377           "  GEN   $@")
 378
 379 qemu-nbd.8: qemu-nbd.texi
 380         $(call quiet-command, \
 381           perl -Ww -- $(SRC_PATH)/scripts/texi2pod.pl $< qemu-nbd.pod && \
 382           $(POD2MAN) --section=8 --center=" " --release=" " qemu-nbd.pod > $@, \
 383           "  GEN   $@")
 384
 385 dvi: qemu-doc.dvi qemu-tech.dvi
 386 html: qemu-doc.html qemu-tech.html
 387 info: qemu-doc.info qemu-tech.info
 388 pdf: qemu-doc.pdf qemu-tech.pdf
 389
 390 qemu-doc.dvi qemu-doc.html qemu-doc.info qemu-doc.pdf: \
 391         qemu-img.texi qemu-nbd.texi qemu-options.texi \
 392         qemu-monitor.texi qemu-img-cmds.texi
 393
 394 VERSION ?= $(shell cat VERSION)
 395 FILE = qemu-$(VERSION)
 396
 397 # tar release (use 'make -k tar' on a checkouted tree)
 398 tar:
 399         rm -rf /tmp/$(FILE)
 400         cp -r . /tmp/$(FILE)
 401         cd /tmp && tar zcvf ~/$(FILE).tar.gz $(FILE) --exclude CVS --exclude .git --exclude .svn
 402         rm -rf /tmp/$(FILE)
 403
 404 # Add a dependency on the generated files, so that they are always
 405 # rebuilt before other object files
 406 Makefile: $(GENERATED_HEADERS)
 407
 408 # Include automatically generated dependency files
 409 # All subdir dependencies come automatically from our recursive subdir rules
 410 -include $(wildcard *.d)