Makefile

   1 # --------------------------------------------------------------------------
   2 #
   3 # Tiny C Compiler Makefile
   4 #
   5
   6 ifndef TOP
   7  TOP = .
   8  INCLUDED = no
   9 endif
  10
  11 ifeq ($(findstring $(MAKECMDGOALS),clean distclean),)
  12  include $(TOP)/config.mak
  13 endif
  14
  15 ifeq (-$(GCC_MAJOR)-$(findstring $(GCC_MINOR),56789)-,-4--)
  16  CFLAGS += -D_FORTIFY_SOURCE=0
  17 endif
  18
  19 LIBTCC = libtcc.a
  20 LIBTCC1 = libtcc1.a
  21 LINK_LIBTCC =
  22 LIBS =
  23 CFLAGS += -I$(TOP)
  24 CFLAGS += $(CPPFLAGS)
  25 VPATH = $(TOPSRC)
  26
  27 ifdef CONFIG_WIN32
  28  CFG = -win
  29  ifneq ($(CONFIG_static),yes)
  30   LIBTCC = libtcc$(DLLSUF)
  31   LIBTCCDEF = libtcc.def
  32  endif
  33  NATIVE_TARGET = $(ARCH)-win$(if $(findstring arm,$(ARCH)),ce,32)
  34 else
  35  CFG = -unx
  36  LIBS=-lm -lpthread
  37  ifneq ($(CONFIG_ldl),no)
  38   LIBS+=-ldl
  39  endif
  40  # make libtcc as static or dynamic library?
  41  ifeq ($(CONFIG_static),no)
  42   LIBTCC=libtcc$(DLLSUF)
  43   export LD_LIBRARY_PATH := $(CURDIR)/$(TOP)
  44   ifneq ($(CONFIG_rpath),no)
  45     ifndef CONFIG_OSX
  46       LINK_LIBTCC += -Wl,-rpath,"$(libdir)"
  47     else
  48       # macOS doesn't support env-vars libdir out of the box - which we need for
  49       # `make test' when libtcc.dylib is used (configure --disable-static), so
  50       # we bake a relative path into the binary. $libdir is used after install.
  51       LINK_LIBTCC += -Wl,-rpath,"@executable_path/$(TOP)" -Wl,-rpath,"$(libdir)"
  52       DYLIBVER += -current_version $(VERSION)
  53       DYLIBVER += -compatibility_version $(VERSION)
  54     endif
  55   endif
  56  endif
  57  NATIVE_TARGET = $(ARCH)
  58  ifdef CONFIG_OSX
  59   NATIVE_TARGET = $(ARCH)-osx
  60   ifneq ($(CC_NAME),tcc)
  61     LDFLAGS += -flat_namespace -undefined warning
  62   endif
  63   export MACOSX_DEPLOYMENT_TARGET := 10.6
  64  endif
  65 endif
  66
  67 # run local version of tcc with local libraries and includes
  68 TCCFLAGS-unx = -B$(TOP) -I$(TOPSRC)/include -I$(TOPSRC) -I$(TOP)
  69 TCCFLAGS-win = -B$(TOPSRC)/win32 -I$(TOPSRC)/include -I$(TOPSRC) -I$(TOP) -L$(TOP)
  70 TCCFLAGS = $(TCCFLAGS$(CFG))
  71 TCC = $(TOP)/tcc$(EXESUF) $(TCCFLAGS)
  72
  73 # cross compiler targets to build
  74 TCC_X = i386 x86_64 i386-win32 x86_64-win32 x86_64-osx arm arm64 arm-wince c67
  75 TCC_X += riscv64
  76 # TCC_X += arm-fpa arm-fpa-ld arm-vfp arm-eabi
  77
  78 CFLAGS_P = $(CFLAGS) -pg -static -DCONFIG_TCC_STATIC -DTCC_PROFILE
  79 LIBS_P = $(LIBS)
  80 LDFLAGS_P = $(LDFLAGS)
  81
  82 CONFIG_$(ARCH) = yes
  83 NATIVE_DEFINES_$(CONFIG_i386) += -DTCC_TARGET_I386
  84 NATIVE_DEFINES_$(CONFIG_x86_64) += -DTCC_TARGET_X86_64
  85 NATIVE_DEFINES_$(CONFIG_WIN32) += -DTCC_TARGET_PE
  86 NATIVE_DEFINES_$(CONFIG_OSX) += -DTCC_TARGET_MACHO
  87 NATIVE_DEFINES_$(CONFIG_uClibc) += -DTCC_UCLIBC
  88 NATIVE_DEFINES_$(CONFIG_musl) += -DTCC_MUSL
  89 NATIVE_DEFINES_$(CONFIG_libgcc) += -DCONFIG_USE_LIBGCC
  90 NATIVE_DEFINES_$(CONFIG_selinux) += -DHAVE_SELINUX
  91 NATIVE_DEFINES_$(CONFIG_arm) += -DTCC_TARGET_ARM
  92 NATIVE_DEFINES_$(CONFIG_arm_eabihf) += -DTCC_ARM_EABI -DTCC_ARM_HARDFLOAT
  93 NATIVE_DEFINES_$(CONFIG_arm_eabi) += -DTCC_ARM_EABI
  94 NATIVE_DEFINES_$(CONFIG_arm_vfp) += -DTCC_ARM_VFP
  95 NATIVE_DEFINES_$(CONFIG_arm64) += -DTCC_TARGET_ARM64
  96 NATIVE_DEFINES_$(CONFIG_riscv64) += -DTCC_TARGET_RISCV64
  97 NATIVE_DEFINES += $(NATIVE_DEFINES_yes)
  98
  99 ifeq ($(INCLUDED),no)
 100 # --------------------------------------------------------------------------
 101 # running top Makefile
 102
 103 PROGS = tcc$(EXESUF)
 104 TCCLIBS = $(LIBTCCDEF) $(LIBTCC) $(LIBTCC1)
 105 TCCDOCS = tcc.1 tcc-doc.html tcc-doc.info
 106
 107 all: $(PROGS) $(TCCLIBS) $(TCCDOCS)
 108
 109 # cross libtcc1.a targets to build
 110 LIBTCC1_X = i386 x86_64 i386-win32 x86_64-win32 x86_64-osx arm arm64 arm-wince
 111 LIBTCC1_X += riscv64
 112
 113 PROGS_CROSS = $(foreach X,$(TCC_X),$X-tcc$(EXESUF))
 114 LIBTCC1_CROSS = $(foreach X,$(LIBTCC1_X),$X-libtcc1.a)
 115
 116 # build cross compilers & libs
 117 cross: $(LIBTCC1_CROSS) $(PROGS_CROSS)
 118
 119 # build specific cross compiler & lib
 120 cross-%: %-tcc$(EXESUF) %-libtcc1.a ;
 121
 122 install: ; @$(MAKE) --no-print-directory  install$(CFG)
 123 install-strip: ; @$(MAKE) --no-print-directory  install$(CFG) CONFIG_strip=yes
 124 uninstall: ; @$(MAKE) --no-print-directory uninstall$(CFG)
 125
 126 ifdef CONFIG_cross
 127 all : cross
 128 endif
 129
 130 # --------------------------------------------
 131
 132 T = $(or $(CROSS_TARGET),$(NATIVE_TARGET),unknown)
 133 X = $(if $(CROSS_TARGET),$(CROSS_TARGET)-)
 134
 135 DEF-i386        = -DTCC_TARGET_I386
 136 DEF-x86_64      = -DTCC_TARGET_X86_64
 137 DEF-i386-win32  = -DTCC_TARGET_PE -DTCC_TARGET_I386
 138 DEF-x86_64-win32= -DTCC_TARGET_PE -DTCC_TARGET_X86_64
 139 DEF-x86_64-osx  = -DTCC_TARGET_MACHO -DTCC_TARGET_X86_64
 140 DEF-arm-wince   = -DTCC_TARGET_PE -DTCC_TARGET_ARM -DTCC_ARM_EABI -DTCC_ARM_VFP -DTCC_ARM_HARDFLOAT
 141 DEF-arm64       = -DTCC_TARGET_ARM64 -Wno-format
 142 DEF-c67         = -DTCC_TARGET_C67 -w # disable warnigs
 143 DEF-arm-fpa     = -DTCC_TARGET_ARM
 144 DEF-arm-fpa-ld  = -DTCC_TARGET_ARM -DLDOUBLE_SIZE=12
 145 DEF-arm-vfp     = -DTCC_TARGET_ARM -DTCC_ARM_VFP
 146 DEF-arm-eabi    = -DTCC_TARGET_ARM -DTCC_ARM_VFP -DTCC_ARM_EABI
 147 DEF-arm-eabihf  = -DTCC_TARGET_ARM -DTCC_ARM_VFP -DTCC_ARM_EABI -DTCC_ARM_HARDFLOAT
 148 DEF-arm         = $(DEF-arm-eabihf)
 149 DEF-riscv64     = -DTCC_TARGET_RISCV64
 150 DEF-$(NATIVE_TARGET) = $(NATIVE_DEFINES)
 151
 152 DEFINES += $(DEF-$T) $(DEF-all)
 153 DEFINES += $(if $(ROOT-$T),-DCONFIG_SYSROOT="\"$(ROOT-$T)\"")
 154 DEFINES += $(if $(CRT-$T),-DCONFIG_TCC_CRTPREFIX="\"$(CRT-$T)\"")
 155 DEFINES += $(if $(LIB-$T),-DCONFIG_TCC_LIBPATHS="\"$(LIB-$T)\"")
 156 DEFINES += $(if $(INC-$T),-DCONFIG_TCC_SYSINCLUDEPATHS="\"$(INC-$T)\"")
 157 DEFINES += $(DEF-$(or $(findstring win,$T),unx))
 158
 159 ifneq ($(X),)
 160 ifeq ($(CONFIG_WIN32),yes)
 161 DEF-win += -DTCC_LIBTCC1="\"$(X)libtcc1.a\""
 162 DEF-unx += -DTCC_LIBTCC1="\"lib/$(X)libtcc1.a\""
 163 else
 164 DEF-all += -DTCC_LIBTCC1="\"$(X)libtcc1.a\""
 165 DEF-win += -DCONFIG_TCCDIR="\"$(tccdir)/win32\""
 166 endif
 167 endif
 168
 169 # include custom configuration (see make help)
 170 -include config-extra.mak
 171
 172 CORE_FILES = tcc.c tcctools.c libtcc.c tccpp.c tccgen.c tccelf.c tccasm.c tccrun.c
 173 CORE_FILES += tcc.h config.h libtcc.h tcctok.h
 174 i386_FILES = $(CORE_FILES) i386-gen.c i386-link.c i386-asm.c i386-asm.h i386-tok.h
 175 i386-win32_FILES = $(i386_FILES) tccpe.c
 176 x86_64_FILES = $(CORE_FILES) x86_64-gen.c x86_64-link.c i386-asm.c x86_64-asm.h
 177 x86_64-win32_FILES = $(x86_64_FILES) tccpe.c
 178 x86_64-osx_FILES = $(x86_64_FILES) tccmacho.c
 179 arm_FILES = $(CORE_FILES) arm-gen.c arm-link.c arm-asm.c
 180 arm-wince_FILES = $(arm_FILES) tccpe.c
 181 arm-eabihf_FILES = $(arm_FILES)
 182 arm-fpa_FILES     = $(arm_FILES)
 183 arm-fpa-ld_FILES  = $(arm_FILES)
 184 arm-vfp_FILES     = $(arm_FILES)
 185 arm-eabi_FILES    = $(arm_FILES)
 186 arm-eabihf_FILES  = $(arm_FILES)
 187 arm64_FILES = $(CORE_FILES) arm64-gen.c arm64-link.c arm-asm.c
 188 c67_FILES = $(CORE_FILES) c67-gen.c c67-link.c tcccoff.c
 189 riscv64_FILES = $(CORE_FILES) riscv64-gen.c riscv64-link.c riscv64-asm.c
 190
 191 # libtcc sources
 192 LIBTCC_SRC = $(filter-out tcc.c tcctools.c,$(filter %.c,$($T_FILES)))
 193
 194 ifeq ($(ONE_SOURCE),yes)
 195 LIBTCC_OBJ = $(X)libtcc.o
 196 LIBTCC_INC = $($T_FILES)
 197 TCC_FILES = $(X)tcc.o
 198 tcc.o : DEFINES += -DONE_SOURCE=0
 199 else
 200 LIBTCC_OBJ = $(patsubst %.c,$(X)%.o,$(LIBTCC_SRC))
 201 LIBTCC_INC = $(filter %.h %-gen.c %-link.c,$($T_FILES))
 202 TCC_FILES = $(X)tcc.o $(LIBTCC_OBJ)
 203 $(TCC_FILES) : DEFINES += -DONE_SOURCE=0
 204 endif
 205
 206 ifeq ($(CONFIG_strip),no)
 207 CFLAGS += -g
 208 LDFLAGS += -g
 209 else
 210 CONFIG_strip = yes
 211 ifndef CONFIG_OSX
 212 LDFLAGS += -s
 213 endif
 214 endif
 215
 216 # target specific object rule
 217 $(X)%.o : %.c $(LIBTCC_INC)
 218         $S$(CC) -o $@ -c $< $(DEFINES) $(CFLAGS)
 219
 220 # additional dependencies
 221 $(X)tcc.o : tcctools.c
 222
 223 # Host Tiny C Compiler
 224 tcc$(EXESUF): tcc.o $(LIBTCC)
 225         $S$(CC) -o $@ $^ $(LIBS) $(LDFLAGS) $(LINK_LIBTCC)
 226
 227 # Cross Tiny C Compilers
 228 %-tcc$(EXESUF): FORCE
 229         @$(MAKE) --no-print-directory $@ CROSS_TARGET=$* ONE_SOURCE=$(or $(ONE_SOURCE),yes)
 230
 231 $(CROSS_TARGET)-tcc$(EXESUF): $(TCC_FILES)
 232         $S$(CC) -o $@ $^ $(LIBS) $(LDFLAGS)
 233
 234 # profiling version
 235 tcc_p$(EXESUF): $($T_FILES)
 236         $S$(CC) -o $@ $< $(DEFINES) $(CFLAGS_P) $(LIBS_P) $(LDFLAGS_P)
 237
 238 # static libtcc library
 239 libtcc.a: $(LIBTCC_OBJ)
 240         $S$(AR) rcs $@ $^
 241
 242 # dynamic libtcc library
 243 libtcc.so: $(LIBTCC_OBJ)
 244         $S$(CC) -shared -Wl,-soname,$@ -o $@ $^ $(LDFLAGS)
 245
 246 libtcc.so: CFLAGS+=-fPIC
 247 libtcc.so: LDFLAGS+=-fPIC
 248
 249 # OSX dynamic libtcc library
 250 libtcc.dylib: $(LIBTCC_OBJ)
 251         $S$(CC) -dynamiclib $(DYLIBVER) -install_name @rpath/$@ -o $@ $^ $(LDFLAGS)
 252
 253 # windows dynamic libtcc library
 254 libtcc.dll : $(LIBTCC_OBJ)
 255         $S$(CC) -shared -o $@ $^ $(LDFLAGS)
 256 libtcc.dll : DEFINES += -DLIBTCC_AS_DLL
 257
 258 # import file for windows libtcc.dll
 259 libtcc.def : libtcc.dll tcc$(EXESUF)
 260         $S$(XTCC) -impdef $< -o $@
 261 XTCC ?= ./tcc$(EXESUF)
 262
 263 # TinyCC runtime libraries
 264 libtcc1.a : tcc$(EXESUF) FORCE
 265         @$(MAKE) -C lib
 266
 267 # Cross libtcc1.a
 268 %-libtcc1.a : %-tcc$(EXESUF) FORCE
 269         @$(MAKE) -C lib CROSS_TARGET=$*
 270
 271 .PRECIOUS: %-libtcc1.a
 272 FORCE:
 273
 274 run-if = $(if $(shell which $1),$S $1 $2)
 275 S = $(if $(findstring yes,$(SILENT)),@$(info * $@))
 276
 277 # --------------------------------------------------------------------------
 278 # documentation and man page
 279 tcc-doc.html: tcc-doc.texi
 280         $(call run-if,makeinfo,--no-split --html --number-sections -o $@ $<)
 281
 282 tcc-doc.info: tcc-doc.texi
 283         $(call run-if,makeinfo,$< || true)
 284
 285 tcc.1 : tcc-doc.pod
 286         $(call run-if,pod2man,--section=1 --center="Tiny C Compiler" \
 287                 --release="$(VERSION)" $< >$@ && rm -f $<)
 288 %.pod : %.texi
 289         $(call run-if,perl,$(TOPSRC)/texi2pod.pl $< $@)
 290
 291 # --------------------------------------------------------------------------
 292 # install
 293
 294 INSTALL = install -m644
 295 INSTALLBIN = install -m755 $(STRIP_$(CONFIG_strip))
 296 STRIP_yes = -s
 297
 298 LIBTCC1_W = $(filter %-win32-libtcc1.a %-wince-libtcc1.a,$(LIBTCC1_CROSS))
 299 LIBTCC1_U = $(filter-out $(LIBTCC1_W),$(LIBTCC1_CROSS))
 300 IB = $(if $1,$(IM) mkdir -p $2 && $(INSTALLBIN) $1 $2)
 301 IBw = $(call IB,$(wildcard $1),$2)
 302 IF = $(if $1,$(IM) mkdir -p $2 && $(INSTALL) $1 $2)
 303 IFw = $(call IF,$(wildcard $1),$2)
 304 IR = $(IM) mkdir -p $2 && cp -r $1/. $2
 305 IM = $(info -> $2 : $1)@
 306
 307 B_O = bcheck.o bt-exe.o bt-log.o bt-dll.o
 308
 309 # install progs & libs
 310 install-unx:
 311         $(call IBw,$(PROGS) $(PROGS_CROSS),"$(bindir)")
 312         $(call IFw,$(LIBTCC1) $(B_O) $(LIBTCC1_U),"$(tccdir)")
 313         $(call IF,$(TOPSRC)/include/*.h $(TOPSRC)/tcclib.h,"$(tccdir)/include")
 314         $(call $(if $(findstring .so,$(LIBTCC)),IBw,IFw),$(LIBTCC),"$(libdir)")
 315         $(call IF,$(TOPSRC)/libtcc.h,"$(includedir)")
 316         $(call IFw,tcc.1,"$(mandir)/man1")
 317         $(call IFw,tcc-doc.info,"$(infodir)")
 318         $(call IFw,tcc-doc.html,"$(docdir)")
 319 ifneq "$(wildcard $(LIBTCC1_W))" ""
 320         $(call IFw,$(TOPSRC)/win32/lib/*.def $(LIBTCC1_W),"$(tccdir)/win32/lib")
 321         $(call IR,$(TOPSRC)/win32/include,"$(tccdir)/win32/include")
 322         $(call IF,$(TOPSRC)/include/*.h $(TOPSRC)/tcclib.h,"$(tccdir)/win32/include")
 323 endif
 324
 325 # uninstall
 326 uninstall-unx:
 327         @rm -fv $(foreach P,$(PROGS) $(PROGS_CROSS),"$(bindir)/$P")
 328         @rm -fv "$(libdir)/libtcc.a" "$(libdir)/libtcc.so" "$(libdir)/libtcc.dylib" "$(includedir)/libtcc.h"
 329         @rm -fv "$(mandir)/man1/tcc.1" "$(infodir)/tcc-doc.info"
 330         @rm -fv "$(docdir)/tcc-doc.html"
 331         @rm -frv "$(tccdir)"
 332
 333 # install progs & libs on windows
 334 install-win:
 335         $(call IBw,$(PROGS) $(PROGS_CROSS) $(subst libtcc.a,,$(LIBTCC)),"$(bindir)")
 336         $(call IF,$(TOPSRC)/win32/lib/*.def,"$(tccdir)/lib")
 337         $(call IFw,libtcc1.a $(B_O) $(LIBTCC1_W),"$(tccdir)/lib")
 338         $(call IF,$(TOPSRC)/include/*.h $(TOPSRC)/tcclib.h,"$(tccdir)/include")
 339         $(call IR,$(TOPSRC)/win32/include,"$(tccdir)/include")
 340         $(call IR,$(TOPSRC)/win32/examples,"$(tccdir)/examples")
 341         $(call IF,$(TOPSRC)/tests/libtcc_test.c,"$(tccdir)/examples")
 342         $(call IFw,$(TOPSRC)/libtcc.h $(subst .dll,.def,$(LIBTCC)),"$(libdir)")
 343         $(call IFw,$(TOPSRC)/win32/tcc-win32.txt tcc-doc.html,"$(docdir)")
 344 ifneq "$(wildcard $(LIBTCC1_U))" ""
 345         $(call IFw,$(LIBTCC1_U),"$(tccdir)/lib")
 346         $(call IF,$(TOPSRC)/include/*.h $(TOPSRC)/tcclib.h,"$(tccdir)/lib/include")
 347 endif
 348
 349 # the msys-git shell works to configure && make except it does not have install
 350 ifeq ($(CONFIG_WIN32)-$(shell which install || echo no),yes-no)
 351 install-win : INSTALL = cp
 352 install-win : INSTALLBIN = cp
 353 endif
 354
 355 # uninstall on windows
 356 uninstall-win:
 357         @rm -fv $(foreach P,libtcc.dll $(PROGS) *-tcc.exe,"$(bindir)"/$P)
 358         @rm -fr $(foreach P,doc examples include lib libtcc,"$(tccdir)/$P"/*)
 359         @rm -frv $(foreach P,doc examples include lib libtcc,"$(tccdir)/$P")
 360
 361 # --------------------------------------------------------------------------
 362 # other stuff
 363
 364 TAGFILES = *.[ch] include/*.h lib/*.[chS]
 365 tags : ; ctags $(TAGFILES)
 366 # cannot have both tags and TAGS on windows
 367 ETAGS : ; etags $(TAGFILES)
 368
 369 # create release tarball from *current* git branch (including tcc-doc.html
 370 # and converting two files to CRLF)
 371 TCC-VERSION = tcc-$(VERSION)
 372 TCC-VERSION = tinycc-mob-$(shell git rev-parse --short=7 HEAD)
 373 tar:    tcc-doc.html
 374         mkdir -p $(TCC-VERSION)
 375         ( cd $(TCC-VERSION) && git --git-dir ../.git checkout -f )
 376         cp tcc-doc.html $(TCC-VERSION)
 377         for f in tcc-win32.txt build-tcc.bat ; do \
 378             cat win32/$$f | sed 's,\(.*\),\1\r,g' > $(TCC-VERSION)/win32/$$f ; \
 379         done
 380         tar cjf $(TCC-VERSION).tar.bz2 $(TCC-VERSION)
 381         rm -rf $(TCC-VERSION)
 382         git reset
 383
 384 config.mak:
 385         $(if $(wildcard $@),,@echo "Please run ./configure." && exit 1)
 386
 387 # run all tests
 388 test:
 389         @$(MAKE) -C tests
 390 # run test(s) from tests2 subdir (see make help)
 391 tests2.%:
 392         @$(MAKE) -C tests/tests2 $@
 393
 394 testspp.%:
 395         @$(MAKE) -C tests/pp $@
 396
 397 clean:
 398         @rm -f tcc$(EXESUF) tcc_p$(EXESUF) *-tcc$(EXESUF) tcc.pod
 399         @rm -f *.o *.a *.so* *.out *.log lib*.def *.exe *.dll a.out tags TAGS *.dylib
 400         @$(MAKE) -s -C lib $@
 401         @$(MAKE) -s -C tests $@
 402
 403 distclean: clean
 404         @rm -fv config.h config.mak config.texi tcc.1 tcc-doc.info tcc-doc.html
 405
 406 .PHONY: all clean test tar tags ETAGS distclean install uninstall FORCE
 407
 408 help:
 409         @echo "make"
 410         @echo "   build native compiler (from separate objects)"
 411         @echo ""
 412         @echo "make cross"
 413         @echo "   build cross compilers (from one source)"
 414         @echo ""
 415         @echo "make ONE_SOURCE=no/yes SILENT=no/yes"
 416         @echo "   force building from separate/one object(s), less/more silently"
 417         @echo ""
 418         @echo "make cross-TARGET"
 419         @echo "   build one specific cross compiler for 'TARGET'. Currently supported:"
 420         @echo "      $(wordlist 1,6,$(TCC_X))"
 421         @echo "      $(wordlist 7,99,$(TCC_X))"
 422         @echo ""
 423         @echo "make test"
 424         @echo "   run all tests"
 425         @echo ""
 426         @echo "make tests2.all / make tests2.37 / make tests2.37+"
 427         @echo "   run all/single test(s) from tests2, optionally update .expect"
 428         @echo ""
 429         @echo "make testspp.all / make testspp.17"
 430         @echo "   run all/single test(s) from tests/pp"
 431         @echo ""
 432         @echo "Other supported make targets:"
 433         @echo "   install install-strip doc clean tags ETAGS tar distclean help"
 434         @echo ""
 435         @echo "Custom configuration:"
 436         @echo "   The makefile includes a file 'config-extra.mak' if it is present."
 437         @echo "   This file may contain some custom configuration.  For example:"
 438         @echo "      NATIVE_DEFINES += -D..."
 439         @echo "   Or for example to configure the search paths for a cross-compiler"
 440         @echo "   that expects the linux files in <tccdir>/i386-linux:"
 441         @echo "      ROOT-i386 = {B}/i386-linux"
 442         @echo "      CRT-i386  = {B}/i386-linux/usr/lib"
 443         @echo "      LIB-i386  = {B}/i386-linux/lib:{B}/i386-linux/usr/lib"
 444         @echo "      INC-i386  = {B}/lib/include:{B}/i386-linux/usr/include"
 445         @echo "      DEF-i386  += -D__linux__"
 446
 447 # --------------------------------------------------------------------------
 448 endif # ($(INCLUDED),no)