tools/root.make

   1 #             __________               __   ___.
   2 #   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
   3 #   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
   4 #   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
   5 #   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
   6 #                     \/            \/     \/    \/            \/
   7 # $Id$
   8 #
   9
  10 include $(TOOLSDIR)/functions.make
  11
  12 DEFINES = -DROCKBOX -DMEMORYSIZE=$(MEMORYSIZE) $(TARGET) \
  13         -DTARGET_ID=$(TARGET_ID) -DTARGET_NAME=\"$(MODELNAME)\" $(BUILDDATE) \
  14         $(EXTRA_DEFINES) # <-- -DSIMULATOR or not
  15 INCLUDES = -I$(BUILDDIR) -I$(BUILDDIR)/lang $(TARGET_INC)
  16
  17 CFLAGS = $(INCLUDES) $(DEFINES) $(GCCOPTS)
  18 PPCFLAGS = $(filter-out -g -Dmain=SDL_main,$(CFLAGS)) # cygwin sdl-config fix
  19 ASMFLAGS = -D__ASSEMBLER__      # work around gcc 3.4.x bug with -std=gnu99, only meant for .S files
  20
  21 TOOLS = $(TOOLSDIR)/rdf2binary $(TOOLSDIR)/convbdf \
  22         $(TOOLSDIR)/codepages $(TOOLSDIR)/scramble $(TOOLSDIR)/bmp2rb \
  23         $(TOOLSDIR)/uclpack $(TOOLSDIR)/mkboot $(TOOLSDIR)/iaudio_bl_flash.c \
  24         $(TOOLSDIR)/iaudio_bl_flash.h
  25
  26 ifeq ($(MODELNAME),archosplayer)
  27   TOOLS += $(TOOLSDIR)/player_unifont
  28 endif
  29
  30 ifeq (,$(PREFIX))
  31 ifdef APP_TYPE
  32 # for sims, set simdisk/ as default
  33 ifeq ($(APP_TYPE),sdl-sim)
  34 RBPREFIX = simdisk
  35 else ifeq ($(APP_TYPE),sdl-app)
  36 RBPREFIX = /usr/local
  37 endif
  38
  39 INSTALL = --install="$(RBPREFIX)"
  40 else
  41 # /dev/null as magic to tell it wasn't set, error out later in buildzip.pl
  42 INSTALL = --install=/dev/null
  43 endif
  44 else
  45 RBPREFIX = $(PREFIX)
  46 INSTALL = --install="$(RBPREFIX)"
  47 endif
  48
  49 RBINFO = $(BUILDDIR)/rockbox-info.txt
  50
  51 # list suffixes to be understood by $*
  52 .SUFFIXES: .rock .codec .map .elf .c .S .o .bmp .a
  53
  54 .PHONY: all clean tags zip tools manual bin build info langs
  55
  56 ifeq (,$(filter clean veryclean reconf tags voice voicetools manual manual-pdf manual-html manual-zhtml manual-txt manual-ztxt manual-zip help fontzip ,$(MAKECMDGOALS)))
  57 # none of the above
  58 DEPFILE = $(BUILDDIR)/make.dep
  59
  60 endif
  61
  62 all: $(DEPFILE) build
  63
  64 # Subdir makefiles. their primary purpose is to populate SRC, OTHER_SRC,
  65 # ASMDEFS_SRC and CORE_LIBS. But they also define special dependencies and
  66 # compile rules
  67 include $(TOOLSDIR)/tools.make
  68
  69 ifeq (,$(findstring checkwps,$(APP_TYPE)))
  70   ifeq (,$(findstring database,$(APP_TYPE)))
  71     ifeq (,$(findstring warble,$(APP_TYPE)))
  72       include $(FIRMDIR)/firmware.make
  73       include $(ROOTDIR)/apps/bitmaps/bitmaps.make
  74       ifeq (,$(findstring bootloader,$(APPSDIR)))
  75         include $(ROOTDIR)/lib/skin_parser/skin_parser.make
  76         include $(ROOTDIR)/lib/tlsf/libtlsf.make
  77       endif
  78     endif
  79   endif
  80 endif
  81
  82 #included before codecs.make and plugins.make so they see them)
  83 ifndef APP_TYPE
  84   include $(ROOTDIR)/lib/libsetjmp/libsetjmp.make
  85   ifeq (arch_arm,$(ARCH))
  86     include $(ROOTDIR)/lib/arm_support/arm_support.make
  87   endif
  88 endif
  89
  90 ifeq (arch_arm,$(ARCH))
  91     include $(ROOTDIR)/lib/unwarminder/unwarminder.make
  92 endif
  93
  94 ifneq (,$(findstring bootloader,$(APPSDIR)))
  95   include $(APPSDIR)/bootloader.make
  96 else ifneq (,$(findstring bootbox,$(APPSDIR)))
  97   BOOTBOXLDOPTS = -Wl,--gc-sections
  98   include $(APPSDIR)/bootbox.make
  99 else ifneq (,$(findstring checkwps,$(APP_TYPE)))
 100   include $(APPSDIR)/checkwps.make
 101   include $(ROOTDIR)/lib/skin_parser/skin_parser.make
 102 else ifneq (,$(findstring database,$(APP_TYPE)))
 103   include $(APPSDIR)/database.make
 104 else ifneq (,$(findstring warble,$(APP_TYPE)))
 105   include $(ROOTDIR)/lib/rbcodec/test/warble.make
 106   include $(ROOTDIR)/lib/tlsf/libtlsf.make
 107   include $(ROOTDIR)/lib/rbcodec/rbcodec.make
 108 else
 109   include $(APPSDIR)/apps.make
 110   include $(ROOTDIR)/lib/rbcodec/rbcodec.make
 111   include $(APPSDIR)/lang/lang.make
 112
 113   ifdef ENABLEDPLUGINS
 114     include $(APPSDIR)/plugins/bitmaps/pluginbitmaps.make
 115     include $(APPSDIR)/plugins/plugins.make
 116   endif
 117
 118   ifneq (,$(findstring sdl,$(APP_TYPE)))
 119     include $(ROOTDIR)/uisimulator/uisimulator.make
 120   endif
 121
 122   ifneq (,$(findstring ypr0,$(APP_TYPE)))
 123     include $(ROOTDIR)/firmware/target/hosted/ypr0/ypr0.make
 124   endif
 125
 126   ifneq (,$(findstring android, $(APP_TYPE)))
 127         include $(ROOTDIR)/android/android.make
 128   endif
 129
 130   ifneq (,$(findstring pandora, $(MODELNAME)))
 131         include $(ROOTDIR)/packaging/pandora/pandora.make
 132   endif
 133
 134 endif # bootloader
 135
 136 OBJ := $(SRC:.c=.o)
 137 OBJ := $(OBJ:.S=.o)
 138 OBJ += $(BMP:.bmp=.o)
 139 OBJ := $(subst $(ROOTDIR),$(BUILDDIR),$(OBJ))
 140
 141 build: $(TOOLS) $(BUILDDIR)/$(BINARY) $(CODECS) $(ROCKS) $(ARCHOSROM) $(RBINFO)
 142
 143 $(RBINFO): $(BUILDDIR)/$(BINARY)
 144         $(SILENT)echo Creating $(@F)
 145         $(SILENT)$(TOOLSDIR)/mkinfo.pl $@
 146
 147 $(DEPFILE) dep:
 148         $(call PRINTS,Generating dependencies)
 149         $(call mkdepfile,$(DEPFILE)_,$(SRC))
 150         $(call mkdepfile,$(DEPFILE)_,$(OTHER_SRC:%.lua=))
 151         $(call mkdepfile,$(DEPFILE)_,$(ASMDEFS_SRC))
 152         $(call bmpdepfile,$(DEPFILE)_,$(BMP) $(PBMP))
 153         @mv $(DEPFILE)_ $(DEPFILE)
 154
 155 bin: $(DEPFILE) $(TOOLS) $(BUILDDIR)/$(BINARY) $(RBINFO)
 156 rocks: $(DEPFILE) $(TOOLS) $(ROCKS)
 157 codecs: $(DEPFILE) $(TOOLS) $(CODECS)
 158 tools: $(TOOLS)
 159
 160 -include $(DEPFILE)
 161
 162 veryclean: clean
 163         $(SILENT)rm -rf $(TOOLS)
 164
 165 clean::
 166         $(SILENT)echo Cleaning build directory
 167         $(SILENT)rm -rf rockbox.zip rockbox.7z rockbox.tar rockbox.tar.gz \
 168                 rockbox.tar.bz2 TAGS apps firmware tools comsim sim lang lib \
 169                 manual *.pdf *.a credits.raw rockbox.ipod bitmaps \
 170                 pluginbitmaps UI256.bmp rockbox-full.zip html txt \
 171                 rockbox-manual*.zip sysfont.h rockbox-info.txt voicefontids \
 172                 *.wav *.mp3 *.voice $(CLEANOBJS) \
 173                 $(LINKRAM) $(LINKROM) rockbox.elf rockbox.map rockbox.bin \
 174                 make.dep rombox.elf rombox.map rombox.bin rombox.ucl romstart.txt \
 175                 $(BINARY) $(FLASHFILE) uisimulator bootloader flash $(BOOTLINK) \
 176                 rockbox.apk
 177
 178 #### linking the binaries: ####
 179
 180 .SECONDEXPANSION:
 181
 182 ifeq (,$(findstring bootloader,$(APPSDIR)))
 183 # not bootloader
 184
 185 OBJ += $(LANG_O)
 186
 187 ifndef APP_TYPE
 188
 189 ## target build
 190 CONFIGFILE := $(FIRMDIR)/export/config/$(MODELNAME).h
 191 RAMLDS := $(FIRMDIR)/target/$(CPU)/$(MANUFACTURER)/app.lds
 192 LINKRAM := $(BUILDDIR)/ram.link
 193 ROMLDS := $(FIRMDIR)/rom.lds
 194 LINKROM := $(BUILDDIR)/rom.link
 195
 196 $(LINKRAM): $(RAMLDS) $(CONFIGFILE)
 197         $(call PRINTS,PP $(@F))
 198         $(call preprocess2file,$<,$@,-DLOADADDRESS=$(LOADADDRESS))
 199
 200 $(LINKROM): $(ROMLDS)
 201         $(call PRINTS,PP $(@F))
 202         $(call preprocess2file,$<,$@,-DLOADADDRESS=$(LOADADDRESS))
 203
 204 $(BUILDDIR)/rockbox.elf : $$(OBJ) $(FIRMLIB) $(VOICESPEEXLIB) $(CORE_LIBS) $$(LINKRAM)
 205         $(call PRINTS,LD $(@F))$(CC) $(GCCOPTS) -Os -nostdlib -o $@ $(OBJ) \
 206                 -L$(BUILDDIR)/firmware -lfirmware \
 207                 -L$(RBCODEC_BLD)/codecs $(call a2lnk, $(VOICESPEEXLIB)) \
 208                 -L$(BUILDDIR)/lib $(call a2lnk, $(CORE_LIBS)) \
 209                 -lgcc $(BOOTBOXLDOPTS) $(GLOBAL_LDOPTS) \
 210                 -T$(LINKRAM) -Wl,-Map,$(BUILDDIR)/rockbox.map
 211
 212 $(BUILDDIR)/rombox.elf : $$(OBJ) $(FIRMLIB) $(VOICESPEEXLIB) $(CORE_LIBS) $$(LINKROM)
 213         $(call PRINTS,LD $(@F))$(CC) $(GCCOPTS) -Os -nostdlib -o $@ $(OBJ) \
 214                 -L$(BUILDDIR)/firmware -lfirmware \
 215                 -L$(RBCODEC_BLD)/codecs $(call a2lnk, $(VOICESPEEXLIB)) \
 216                 -L$(BUILDDIR)/lib $(call a2lnk, $(CORE_LIBS)) \
 217                 -lgcc $(BOOTBOXLDOPTS) $(GLOBAL_LDOPTS) \
 218                 -T$(LINKROM) -Wl,-Map,$(BUILDDIR)/rombox.map
 219
 220 $(BUILDDIR)/rockbox.bin : $(BUILDDIR)/rockbox.elf
 221         $(call PRINTS,OC $(@F))$(call objcopy,$<,$@)
 222
 223 $(BUILDDIR)/rombox.bin : $(BUILDDIR)/rombox.elf
 224         $(call PRINTS,OC $(@F))$(call objcopy,$<,$@)
 225
 226 #
 227 # If there's a flashfile defined for this target (rockbox.ucl for Archos
 228 # models) Then check if the mkfirmware script fails, as then it is (likely)
 229 # because the image is too big and we need to create a compressed image
 230 # instead.
 231 #
 232 $(BUILDDIR)/$(BINARY) : $(BUILDDIR)/rockbox.bin $(FLASHFILE)
 233         $(call PRINTS,SCRAMBLE $(notdir $@))($(MKFIRMWARE) $< $@; \
 234         stat=$$?; \
 235         if test -n "$(FLASHFILE)"; then \
 236           if test "$$stat" -ne 0; then \
 237             echo "Image too big, making a compressed version!"; \
 238             $(MAKE) -C $(FIRMDIR)/decompressor OBJDIR=$(BUILDDIR)/firmware/decompressor; \
 239             $(MKFIRMWARE) $(BUILDDIR)/firmware/decompressor/compressed.bin $@; \
 240           fi \
 241         fi )
 242
 243 # archos
 244 $(BUILDDIR)/rockbox.ucl: $(BUILDDIR)/rockbox.bin
 245         $(call PRINTS,UCLPACK $(@F))$(TOOLSDIR)/uclpack --best --2e -b1048576 $< $@ >/dev/null
 246
 247 MAXINFILE = $(BUILDDIR)/temp.txt
 248 MAXOUTFILE = $(BUILDDIR)/romstart.txt
 249
 250 $(BUILDDIR)/rombox.ucl: $(BUILDDIR)/rombox.bin $(MAXOUTFILE)
 251         $(call PRINTS,UCLPACK $(@F))$(TOOLSDIR)/uclpack --none $< $@ >/dev/null; \
 252                 perl $(TOOLSDIR)/romsizetest.pl `cat $(MAXOUTFILE)` $<; \
 253                 if test $$? -ne 0; then \
 254                   echo "removing UCL file again, making it a fake one"; \
 255                   echo "fake" > $@; \
 256                 fi
 257
 258 $(MAXOUTFILE):
 259         $(call PRINTS,Creating $(@F))
 260         $(SILENT)echo '#include "config.h"' > $(MAXINFILE)
 261         $(SILENT)echo "ROM_START" >> $(MAXINFILE)
 262         $(call preprocess2file,$(MAXINFILE),$(MAXOUTFILE))
 263         $(SILENT)rm $(MAXINFILE)
 264
 265 # iriver
 266 $(BUILDDIR)/rombox.iriver: $(BUILDDIR)/rombox.bin
 267         $(call PRINTS,Build ROM file)$(MKFIRMWARE) $< $@
 268
 269 endif # !APP_TYPE
 270 endif # !bootloader
 271
 272
 273 voicetools:
 274         $(SILENT)$(MAKE) -C $(TOOLSDIR) CC=$(HOSTCC) AR=$(HOSTAR) rbspeexenc voicefont wavtrim
 275
 276 tags:
 277         $(SILENT)rm -f TAGS
 278         $(SILENT)etags -o $(BUILDDIR)/TAGS $(filter-out %.o,$(SRC) $(OTHER_SRC))
 279
 280 fontzip:
 281         $(SILENT)$(TOOLSDIR)/buildzip.pl $(VERBOSEOPT) --app=$(APPLICATION) -m \"$(MODELNAME)\" -r "$(ROOTDIR)" --rbdir="$(RBDIR)" -f 1 -o rockbox-fonts.zip $(TARGET) $(BINARY)
 282
 283 zip: $(BUILDDIR)/rockbox.zip
 284
 285 ifdef NODEPS
 286 $(BUILDDIR)/rockbox.zip:
 287 else
 288 $(BUILDDIR)/rockbox.zip: build
 289 endif
 290         $(SILENT)$(TOOLSDIR)/buildzip.pl $(VERBOSEOPT) --app=$(APPLICATION) -m \"$(MODELNAME)\" -i \"$(TARGET_ID)\"  -r "$(ROOTDIR)" --rbdir="$(RBDIR)" $(TARGET) $(BINARY)
 291
 292 mapzip:
 293         $(SILENT)find . -name "*.map" | xargs zip rockbox-maps.zip
 294
 295 elfzip:
 296         $(SILENT)find . -name "*.elf" | xargs zip rockbox-elfs.zip
 297
 298 fullzip:
 299         $(SILENT)$(TOOLSDIR)/buildzip.pl $(VERBOSEOPT) --app=$(APPLICATION) -m \"$(MODELNAME)\" -i \"$(TARGET_ID)\"  -r "$(ROOTDIR)" --rbdir="$(RBDIR)" -f 2 -o rockbox-full.zip $(TARGET) $(BINARY)
 300
 301 7zip:
 302         $(SILENT)$(TOOLSDIR)/buildzip.pl $(VERBOSEOPT) --app=$(APPLICATION) -m \"$(MODELNAME)\" -i \"$(TARGET_ID)\"  -o "rockbox.7z" -z "7za a -mx=9" -r "$(ROOTDIR)" --rbdir="$(RBDIR)" $(TARGET) $(BINARY)
 303
 304 tar:
 305         $(SILENT)rm -f rockbox.tar
 306         $(SILENT)$(TOOLSDIR)/buildzip.pl $(VERBOSEOPT) --app=$(APPLICATION) -m \"$(MODELNAME)\" -i \"$(TARGET_ID)\"  -o "rockbox.tar" -z "tar -cf" -r "$(ROOTDIR)" --rbdir="$(RBDIR)" $(TARGET) $(BINARY)
 307
 308 bzip2: tar
 309         $(SILENT)bzip2 -f9 rockbox.tar
 310
 311 gzip: tar
 312         $(SILENT)gzip -f9 rockbox.tar
 313
 314 manual manual-pdf:
 315         $(SILENT)$(MAKE) -C $(MANUALDIR) OBJDIR=$(BUILDDIR)/manual manual-pdf
 316 manual-html:
 317         $(SILENT)$(MAKE) -C $(MANUALDIR) OBJDIR=$(BUILDDIR)/manual manual-html
 318 manual-zhtml: manual-zip
 319 manual-txt:
 320         $(SILENT)$(MAKE) -C $(MANUALDIR) OBJDIR=$(BUILDDIR)/manual manual-txt
 321 manual-ztxt:
 322         $(SILENT)$(MAKE) -C $(MANUALDIR) OBJDIR=$(BUILDDIR)/manual manual-txt-zip
 323 manual-zip:
 324         $(SILENT)$(MAKE) -C $(MANUALDIR) OBJDIR=$(BUILDDIR)/manual manual-zip
 325
 326 ifdef TTS_ENGINE
 327
 328 voice: voicetools $(BUILDDIR)/apps/features
 329         $(SILENT)for f in `cat $(BUILDDIR)/apps/features`; do feat="$$feat:$$f" ; done ; \
 330         for lang in `echo $(VOICELANGUAGE) |sed "s/,/ /g"`; do $(TOOLSDIR)/voice.pl -V -l=$$lang -t=$(MODELNAME)$$feat -i=$(TARGET_ID) -e="$(ENCODER)" -E="$(ENC_OPTS)" -s=$(TTS_ENGINE) -S="$(TTS_OPTS)"; done \
 331
 332 endif
 333
 334 ifeq (,$(findstring android, $(APP_TYPE)))
 335 bininstall: $(BUILDDIR)/$(BINARY)
 336         @echo "Installing your rockbox binary in your '$(RBPREFIX)' dir"
 337         $(SILENT)cp $(BINARY) "$(RBPREFIX)/.rockbox/"
 338
 339 install:
 340         @echo "Installing your build in your '$(RBPREFIX)' dir"
 341         $(SILENT)$(TOOLSDIR)/buildzip.pl $(VERBOSEOPT) --app=$(APPLICATION) -m "$(MODELNAME)" -i "$(TARGET_ID)" $(INSTALL) -z "zip -r0" -r "$(ROOTDIR)" --rbdir="$(RBDIR)" -f 0 $(TARGET) $(BINARY)
 342
 343 fullinstall:
 344         @echo "Installing a full setup in your '$(RBPREFIX)' dir"
 345         $(SILENT)$(TOOLSDIR)/buildzip.pl $(VERBOSEOPT) --app=$(APPLICATION) -m "$(MODELNAME)" -i "$(TARGET_ID)" $(INSTALL) -z "zip -r0" -r "$(ROOTDIR)" --rbdir="$(RBDIR)" -f 2 $(TARGET) $(BINARY)
 346
 347 symlinkinstall:
 348         @echo "Installing a full setup with links in your '$(RBPREFIX)' dir"
 349         $(SILENT)$(TOOLSDIR)/buildzip.pl $(VERBOSEOPT) --app=$(APPLICATION) -m "$(MODELNAME)" -i "$(TARGET_ID)" $(INSTALL) -z "zip -r0" -r "$(ROOTDIR)" --rbdir="$(RBDIR)" -f 2 $(TARGET) $(BINARY) -l
 350 endif
 351
 352 help:
 353         @echo "A few helpful make targets"
 354         @echo ""
 355         @echo "all            - builds a full Rockbox (default), including tools"
 356         @echo "bin            - builds only the Rockbox.<target name> file"
 357         @echo "rocks          - builds only plugins"
 358         @echo "codecs         - builds only codecs"
 359         @echo "dep            - regenerates make dependency database"
 360         @echo "clean          - cleans a build directory (not tools)"
 361         @echo "veryclean      - cleans the build and tools directories"
 362         @echo "manual         - builds a manual (pdf)"
 363         @echo "manual-html    - HTML manual"
 364         @echo "manual-zip     - HTML manual (zipped)"
 365         @echo "manual-txt     - txt manual"
 366         @echo "fullzip        - creates a rockbox.zip of your build with fonts"
 367         @echo "zip            - creates a rockbox.zip of your build (no fonts)"
 368         @echo "gzip           - creates a rockbox.tar.gz of your build (no fonts)"
 369         @echo "bzip2          - creates a rockbox.tar.bz2 of your build (no fonts)"
 370         @echo "7zip           - creates a rockbox.7z of your build (no fonts)"
 371         @echo "fontzip        - creates rockbox-fonts.zip"
 372         @echo "mapzip         - creates rockbox-maps.zip with all .map files"
 373         @echo "elfzip         - creates rockbox-elfs.zip with all .elf files"
 374         @echo "pnd            - creates rockbox.pnd archive (Pandora builds only)"
 375         @echo "tools          - builds the tools only"
 376         @echo "voice          - creates the voice clips (voice builds only)"
 377         @echo "voicetools     - builds the voice tools only"
 378         @echo "install        - installs your build (at PREFIX, defaults to simdisk/ for simulators (no fonts))"
 379         @echo "fullinstall    - installs your build (like install, but with fonts)"
 380         @echo "symlinkinstall - like fullinstall, but with links instead of copying files. (Good for developing on simulator)"
 381         @echo "reconf         - rerun configure with the same selection"
 382
 383 ### general compile rules:
 384
 385 # when source and object are in different locations (normal):
 386 $(BUILDDIR)/%.o: $(ROOTDIR)/%.c
 387         $(SILENT)mkdir -p $(dir $@)
 388         $(call PRINTS,CC $(subst $(ROOTDIR)/,,$<))$(CC) $(CFLAGS) -c $< -o $@
 389
 390 $(BUILDDIR)/%.o: $(ROOTDIR)/%.S
 391         $(SILENT)mkdir -p $(dir $@)
 392         $(call PRINTS,CC $(subst $(ROOTDIR)/,,$<))$(CC) $(CFLAGS) $(ASMFLAGS) -c $< -o $@
 393
 394 # generated definitions for use in .S files
 395 $(BUILDDIR)/%_asmdefs.h: $(ROOTDIR)/%_asmdefs.c
 396         $(call PRINTS,ASMDEFS $(@F))
 397         $(SILENT)mkdir -p $(dir $@)
 398         $(call asmdefs2file,$<,$@)
 399
 400 # when source and object are both in BUILDDIR (generated code):
 401 %.o: %.c
 402         $(SILENT)mkdir -p $(dir $@)
 403         $(call PRINTS,CC $(subst $(ROOTDIR)/,,$<))$(CC) $(CFLAGS) -c $< -o $@
 404
 405 %.o: %.S
 406         $(SILENT)mkdir -p $(dir $@)
 407         $(call PRINTS,CC $(subst $(ROOTDIR)/,,$<))$(CC) $(CFLAGS) $(ASMFLAGS) -c $< -o $@
 408
 409 Makefile: $(TOOLSDIR)/configure
 410 ifneq (reconf,$(MAKECMDGOALS))
 411         $(SILENT)echo "*** tools/configure is newer than Makefile. You should run 'make reconf'."
 412 endif
 413
 414 reconf:
 415         $(SILENT$)$(TOOLSDIR)/configure $(CONFIGURE_OPTIONS)