# --------------------------------------------------------------------------
#
# Tiny C Compiler Makefile
#

ifndef TOP
 TOP = .
 INCLUDED = no
endif

ifeq ($(findstring $(MAKECMDGOALS),clean distclean),)
 include $(TOP)/config.mak
endif

ifeq (-$(GCC_MAJOR)-$(findstring $(GCC_MINOR),56789)-,-4--)
 CFLAGS += -D_FORTIFY_SOURCE=0
endif

LIBTCC = libtcc.a
LIBTCC1 = libtcc1.a
LINK_LIBTCC =
LIBS =
CFLAGS += -I$(TOP)
CFLAGS += $(CPPFLAGS)
VPATH = $(TOPSRC)

ifdef CONFIG_WIN32
 CFG = -win
 ifneq ($(CONFIG_static),yes)
  LIBTCC = libtcc$(DLLSUF)
  LIBTCCDEF = libtcc.def
 endif
 NATIVE_TARGET = $(ARCH)-win$(if $(findstring arm,$(ARCH)),ce,32)
else
 CFG = -unx
 LIBS=-lm -lpthread
 ifneq ($(CONFIG_ldl),no)
  LIBS+=-ldl
 endif
 # make libtcc as static or dynamic library?
 ifeq ($(CONFIG_static),no)
  LIBTCC=libtcc$(DLLSUF)
  export LD_LIBRARY_PATH := $(CURDIR)/$(TOP)
  ifneq ($(CONFIG_rpath),no)
    ifndef CONFIG_OSX
      LINK_LIBTCC += -Wl,-rpath,"$(libdir)"
    else
      # macOS doesn't support env-vars libdir out of the box - which we need for
      # `make test' when libtcc.dylib is used (configure --disable-static), so
      # we bake a relative path into the binary. $libdir is used after install.
      LINK_LIBTCC += -Wl,-rpath,"@executable_path/$(TOP)" -Wl,-rpath,"$(libdir)"
      DYLIBVER += -current_version $(VERSION)
      DYLIBVER += -compatibility_version $(VERSION)
    endif
  endif
 endif
 NATIVE_TARGET = $(ARCH)
 ifdef CONFIG_OSX
  NATIVE_TARGET = $(ARCH)-osx
  ifneq ($(CC_NAME),tcc)
    LDFLAGS += -flat_namespace -undefined warning
  endif
  export MACOSX_DEPLOYMENT_TARGET := 10.6
 endif
endif

# run local version of tcc with local libraries and includes
TCCFLAGS-unx = -B$(TOP) -I$(TOPSRC)/include -I$(TOPSRC) -I$(TOP)
TCCFLAGS-win = -B$(TOPSRC)/win32 -I$(TOPSRC)/include -I$(TOPSRC) -I$(TOP) -L$(TOP)
TCCFLAGS = $(TCCFLAGS$(CFG))
TCC = $(TOP)/tcc$(EXESUF) $(TCCFLAGS)

CFLAGS_P = $(CFLAGS) -pg -static -DCONFIG_TCC_STATIC -DTCC_PROFILE
LIBS_P = $(LIBS)
LDFLAGS_P = $(LDFLAGS)

CONFIG_$(ARCH) = yes
NATIVE_DEFINES_$(CONFIG_i386) += -DTCC_TARGET_I386
NATIVE_DEFINES_$(CONFIG_x86_64) += -DTCC_TARGET_X86_64
NATIVE_DEFINES_$(CONFIG_WIN32) += -DTCC_TARGET_PE
NATIVE_DEFINES_$(CONFIG_OSX) += -DTCC_TARGET_MACHO
NATIVE_DEFINES_$(CONFIG_uClibc) += -DTCC_UCLIBC
NATIVE_DEFINES_$(CONFIG_musl) += -DTCC_MUSL
NATIVE_DEFINES_$(CONFIG_libgcc) += -DCONFIG_USE_LIBGCC
NATIVE_DEFINES_$(CONFIG_selinux) += -DHAVE_SELINUX
NATIVE_DEFINES_$(CONFIG_arm) += -DTCC_TARGET_ARM
NATIVE_DEFINES_$(CONFIG_arm_eabihf) += -DTCC_ARM_EABI -DTCC_ARM_HARDFLOAT
NATIVE_DEFINES_$(CONFIG_arm_eabi) += -DTCC_ARM_EABI
NATIVE_DEFINES_$(CONFIG_arm_vfp) += -DTCC_ARM_VFP
NATIVE_DEFINES_$(CONFIG_arm64) += -DTCC_TARGET_ARM64
NATIVE_DEFINES_$(CONFIG_riscv64) += -DTCC_TARGET_RISCV64
NATIVE_DEFINES_$(CONFIG_BSD) += -DTARGETOS_$(TARGETOS)
NATIVE_DEFINES_$(CONFIG_pie) += -DCONFIG_TCC_PIE
NATIVE_DEFINES_no_$(CONFIG_bcheck) += -DCONFIG_TCC_BCHECK=0
NATIVE_DEFINES_no_$(CONFIG_backtrace) += -DCONFIG_TCC_BACKTRACE=0
NATIVE_DEFINES += $(NATIVE_DEFINES_yes) $(NATIVE_DEFINES_no_no)

DEF-i386           = -DTCC_TARGET_I386
DEF-i386-win32     = -DTCC_TARGET_I386 -DTCC_TARGET_PE
DEF-i386-OpenBSD   = $(DEF-i386) -DTARGETOS_OpenBSD
DEF-x86_64         = -DTCC_TARGET_X86_64
DEF-x86_64-win32   = -DTCC_TARGET_X86_64 -DTCC_TARGET_PE
DEF-x86_64-osx     = -DTCC_TARGET_X86_64 -DTCC_TARGET_MACHO
DEF-arm-fpa        = -DTCC_TARGET_ARM
DEF-arm-fpa-ld     = -DTCC_TARGET_ARM -DLDOUBLE_SIZE=12
DEF-arm-vfp        = -DTCC_TARGET_ARM -DTCC_ARM_VFP
DEF-arm-eabi       = -DTCC_TARGET_ARM -DTCC_ARM_VFP -DTCC_ARM_EABI
DEF-arm-eabihf     = $(DEF-arm-eabi) -DTCC_ARM_HARDFLOAT
DEF-arm            = $(DEF-arm-eabihf)
DEF-arm-NetBSD     = $(DEF-arm-eabihf) -DTARGETOS_NetBSD
DEF-arm-wince      = $(DEF-arm-eabihf) -DTCC_TARGET_PE
DEF-arm64          = -DTCC_TARGET_ARM64
DEF-arm64-osx      = $(DEF-arm64) -DTCC_TARGET_MACHO
DEF-arm64-FreeBSD  = $(DEF-arm64) -DTARGETOS_FreeBSD
DEF-arm64-NetBSD   = $(DEF-arm64) -DTARGETOS_NetBSD
DEF-arm64-OpenBSD  = $(DEF-arm64) -DTARGETOS_OpenBSD
DEF-riscv64        = -DTCC_TARGET_RISCV64
DEF-c67            = -DTCC_TARGET_C67 -w # disable warnigs
DEF-x86_64-FreeBSD = $(DEF-x86_64) -DTARGETOS_FreeBSD
DEF-x86_64-NetBSD  = $(DEF-x86_64) -DTARGETOS_NetBSD
DEF-x86_64-OpenBSD = $(DEF-x86_64) -DTARGETOS_OpenBSD

DEF-$(NATIVE_TARGET) = $(NATIVE_DEFINES)

ifeq ($(INCLUDED),no)
# --------------------------------------------------------------------------
# running top Makefile

PROGS = tcc$(EXESUF)
TCCLIBS = $(LIBTCCDEF) $(LIBTCC) $(LIBTCC1)
TCCDOCS = tcc.1 tcc-doc.html tcc-doc.info

all: $(PROGS) $(TCCLIBS) $(TCCDOCS)

# cross compiler targets to build
TCC_X = i386 x86_64 i386-win32 x86_64-win32 x86_64-osx arm arm64 arm-wince c67
TCC_X += riscv64 arm64-osx
# TCC_X += arm-fpa arm-fpa-ld arm-vfp arm-eabi

# cross libtcc1.a targets to build
LIBTCC1_X = i386 x86_64 i386-win32 x86_64-win32 x86_64-osx arm arm64 arm-wince
LIBTCC1_X += riscv64 arm64-osx

PROGS_CROSS = $(foreach X,$(TCC_X),$X-tcc$(EXESUF))
LIBTCC1_CROSS = $(foreach X,$(LIBTCC1_X),$X-libtcc1.a)

# build cross compilers & libs
cross: $(LIBTCC1_CROSS) $(PROGS_CROSS)

# build specific cross compiler & lib
cross-%: %-tcc$(EXESUF) %-libtcc1.a ;

install: ; @$(MAKE) --no-print-directory  install$(CFG)
install-strip: ; @$(MAKE) --no-print-directory  install$(CFG) CONFIG_strip=yes
uninstall: ; @$(MAKE) --no-print-directory uninstall$(CFG)

ifdef CONFIG_cross
all : cross
endif

# --------------------------------------------

T = $(or $(CROSS_TARGET),$(NATIVE_TARGET),unknown)
X = $(if $(CROSS_TARGET),$(CROSS_TARGET)-)

DEFINES += $(DEF-$T) $(DEF-all)
DEFINES += $(if $(ROOT-$T),-DCONFIG_SYSROOT="\"$(ROOT-$T)\"")
DEFINES += $(if $(CRT-$T),-DCONFIG_TCC_CRTPREFIX="\"$(CRT-$T)\"")
DEFINES += $(if $(LIB-$T),-DCONFIG_TCC_LIBPATHS="\"$(LIB-$T)\"")
DEFINES += $(if $(INC-$T),-DCONFIG_TCC_SYSINCLUDEPATHS="\"$(INC-$T)\"")
DEFINES += $(DEF-$(or $(findstring win,$T),unx))

ifneq ($(X),)
ifeq ($(CONFIG_WIN32),yes)
DEF-win += -DTCC_LIBTCC1="\"$(X)libtcc1.a\""
DEF-unx += -DTCC_LIBTCC1="\"lib/$(X)libtcc1.a\""
else
DEF-all += -DTCC_LIBTCC1="\"$(X)libtcc1.a\""
DEF-win += -DCONFIG_TCCDIR="\"$(tccdir)/win32\""
endif
endif

# include custom configuration (see make help)
-include config-extra.mak

CORE_FILES = tcc.c tcctools.c libtcc.c tccpp.c tccgen.c tccelf.c tccasm.c tccrun.c
CORE_FILES += tcc.h config.h libtcc.h tcctok.h
i386_FILES = $(CORE_FILES) i386-gen.c i386-link.c i386-asm.c i386-asm.h i386-tok.h
i386-win32_FILES = $(i386_FILES) tccpe.c
x86_64_FILES = $(CORE_FILES) x86_64-gen.c x86_64-link.c i386-asm.c x86_64-asm.h
x86_64-win32_FILES = $(x86_64_FILES) tccpe.c
x86_64-osx_FILES = $(x86_64_FILES) tccmacho.c
arm_FILES = $(CORE_FILES) arm-gen.c arm-link.c arm-asm.c arm-tok.h
arm-wince_FILES = $(arm_FILES) tccpe.c
arm-eabihf_FILES = $(arm_FILES)
arm-fpa_FILES     = $(arm_FILES)
arm-fpa-ld_FILES  = $(arm_FILES)
arm-vfp_FILES     = $(arm_FILES)
arm-eabi_FILES    = $(arm_FILES)
arm-eabihf_FILES  = $(arm_FILES)
arm64_FILES = $(CORE_FILES) arm64-gen.c arm64-link.c arm64-asm.c
arm64-osx_FILES = $(arm64_FILES) tccmacho.c
c67_FILES = $(CORE_FILES) c67-gen.c c67-link.c tcccoff.c
riscv64_FILES = $(CORE_FILES) riscv64-gen.c riscv64-link.c riscv64-asm.c

TCCDEFS_H$(subst yes,,$(CONFIG_predefs)) = tccdefs_.h

# libtcc sources
LIBTCC_SRC = $(filter-out tcc.c tcctools.c,$(filter %.c,$($T_FILES)))

ifeq ($(ONE_SOURCE),yes)
LIBTCC_OBJ = $(X)libtcc.o
LIBTCC_INC = $($T_FILES)
TCC_FILES = $(X)tcc.o
tcc.o : DEFINES += -DONE_SOURCE=0
$(X)tcc.o $(X)libtcc.o  : $(TCCDEFS_H)
else
LIBTCC_OBJ = $(patsubst %.c,$(X)%.o,$(LIBTCC_SRC))
LIBTCC_INC = $(filter %.h %-gen.c %-link.c,$($T_FILES))
TCC_FILES = $(X)tcc.o $(LIBTCC_OBJ)
$(TCC_FILES) : DEFINES += -DONE_SOURCE=0
$(X)tccpp.o : $(TCCDEFS_H)
endif

GITHASH := $(shell git rev-parse >/dev/null 2>&1 && git rev-parse --short HEAD || echo no)
ifneq ($(GITHASH),no)
DEF_GITHASH := -DTCC_GITHASH="\"$(shell git rev-parse --abbrev-ref HEAD):$(GITHASH)$(shell git diff --quiet || echo '-mod')\""
endif

ifeq ($(CONFIG_debug),yes)
CFLAGS += -g
LDFLAGS += -g
else
ifndef CONFIG_OSX
LDFLAGS += -s
endif
endif

# convert "include/tccdefs.h" to "tccdefs_.h"
%_.h : include/%.h conftest.c
	$S$(CC) -DC2STR $(filter %.c,$^) -o c2str.exe && ./c2str.exe $< $@

# target specific object rule
$(X)%.o : %.c $(LIBTCC_INC)
	$S$(CC) -o $@ -c $< $(DEFINES) $(CFLAGS)

# additional dependencies
$(X)tcc.o : tcctools.c
$(X)tcc.o : DEFINES += $(DEF_GITHASH)

# Host Tiny C Compiler
tcc$(EXESUF): tcc.o $(LIBTCC)
	$S$(CC) -o $@ $^ $(LIBS) $(LDFLAGS) $(LINK_LIBTCC)

# Cross Tiny C Compilers
# (the TCCDEFS_H dependency is only necessary for parallel makes,
# ala 'make -j x86_64-tcc i386-tcc tcc', which would create multiple
# c2str.exe and tccdefs_.h files in parallel, leading to access errors.
# This forces it to be made only once.  Make normally tracks multiple paths
# to the same goals and only remakes it once, but that doesn't work over
# sub-makes like in this target)
%-tcc$(EXESUF): $(TCCDEFS_H) FORCE
	@$(MAKE) --no-print-directory $@ CROSS_TARGET=$* ONE_SOURCE=$(or $(ONE_SOURCE),yes)

$(CROSS_TARGET)-tcc$(EXESUF): $(TCC_FILES)
	$S$(CC) -o $@ $^ $(LIBS) $(LDFLAGS)

# profiling version
tcc_p$(EXESUF): $($T_FILES)
	$S$(CC) -o $@ $< $(DEFINES) $(CFLAGS_P) $(LIBS_P) $(LDFLAGS_P)

# static libtcc library
libtcc.a: $(LIBTCC_OBJ)
	$S$(AR) rcs $@ $^

# dynamic libtcc library
libtcc.so: $(LIBTCC_OBJ)
	$S$(CC) -shared -Wl,-soname,$@ -o $@ $^ $(LDFLAGS)

libtcc.so: CFLAGS+=-fPIC
libtcc.so: LDFLAGS+=-fPIC

# OSX dynamic libtcc library
libtcc.dylib: $(LIBTCC_OBJ)
	$S$(CC) -dynamiclib $(DYLIBVER) -install_name @rpath/$@ -o $@ $^ $(LDFLAGS) 

# OSX libtcc.dylib (without rpath/ prefix)
libtcc.osx: $(LIBTCC_OBJ)
	$S$(CC) -shared -install_name libtcc.dylib -o libtcc.dylib $^ $(LDFLAGS) 

# windows dynamic libtcc library
libtcc.dll : $(LIBTCC_OBJ)
	$S$(CC) -shared -o $@ $^ $(LDFLAGS)
libtcc.dll : DEFINES += -DLIBTCC_AS_DLL

# import file for windows libtcc.dll
libtcc.def : libtcc.dll tcc$(EXESUF)
	$S$(XTCC) -impdef $< -o $@
XTCC ?= ./tcc$(EXESUF)

# TinyCC runtime libraries
libtcc1.a : tcc$(EXESUF) FORCE
	@$(MAKE) -C lib

# Cross libtcc1.a
%-libtcc1.a : %-tcc$(EXESUF) FORCE
	@$(MAKE) -C lib CROSS_TARGET=$*

.PRECIOUS: %-libtcc1.a
FORCE:

run-if = $(if $(shell which $1),$S $1 $2)
S = $(if $(findstring yes,$(SILENT)),@$(info * $@))

# --------------------------------------------------------------------------
# documentation and man page
tcc-doc.html: tcc-doc.texi
	$(call run-if,makeinfo,--no-split --html --number-sections -o $@ $<)

tcc-doc.info: tcc-doc.texi
	$(call run-if,makeinfo,$< || true)

tcc.1 : tcc-doc.pod
	$(call run-if,pod2man,--section=1 --center="Tiny C Compiler" \
		--release="$(VERSION)" $< >$@ && rm -f $<)
%.pod : %.texi
	$(call run-if,perl,$(TOPSRC)/texi2pod.pl $< $@)

doc : $(TCCDOCS)

# --------------------------------------------------------------------------
# install

INSTALL = install -m644
INSTALLBIN = install -m755 $(STRIP_$(CONFIG_strip))
STRIP_yes = -s

LIBTCC1_W = $(filter %-win32-libtcc1.a %-wince-libtcc1.a,$(LIBTCC1_CROSS))
LIBTCC1_U = $(filter-out $(LIBTCC1_W),$(LIBTCC1_CROSS))
IB = $(if $1,$(IM) mkdir -p $2 && $(INSTALLBIN) $1 $2)
IBw = $(call IB,$(wildcard $1),$2)
IF = $(if $1,$(IM) mkdir -p $2 && $(INSTALL) $1 $2)
IFw = $(call IF,$(wildcard $1),$2)
IR = $(IM) mkdir -p $2 && cp -r $1/. $2
IM = $(info -> $2 : $1)@

B_O = bcheck.o bt-exe.o bt-log.o bt-dll.o

# install progs & libs
install-unx:
	$(call IBw,$(PROGS) $(PROGS_CROSS),"$(bindir)")
	$(call IFw,$(LIBTCC1) $(B_O) $(LIBTCC1_U),"$(tccdir)")
	$(call IF,$(TOPSRC)/include/*.h $(TOPSRC)/tcclib.h,"$(tccdir)/include")
	$(call $(if $(findstring .so,$(LIBTCC)),IBw,IFw),$(LIBTCC),"$(libdir)")
	$(call IF,$(TOPSRC)/libtcc.h,"$(includedir)")
	$(call IFw,tcc.1,"$(mandir)/man1")
	$(call IFw,tcc-doc.info,"$(infodir)")
	$(call IFw,tcc-doc.html,"$(docdir)")
ifneq "$(wildcard $(LIBTCC1_W))" ""
	$(call IFw,$(TOPSRC)/win32/lib/*.def $(LIBTCC1_W),"$(tccdir)/win32/lib")
	$(call IR,$(TOPSRC)/win32/include,"$(tccdir)/win32/include")
	$(call IF,$(TOPSRC)/include/*.h $(TOPSRC)/tcclib.h,"$(tccdir)/win32/include")
endif

# uninstall
uninstall-unx:
	@rm -fv $(foreach P,$(PROGS) $(PROGS_CROSS),"$(bindir)/$P")
	@rm -fv "$(libdir)/libtcc.a" "$(libdir)/libtcc.so" "$(libdir)/libtcc.dylib" "$(includedir)/libtcc.h"
	@rm -fv "$(mandir)/man1/tcc.1" "$(infodir)/tcc-doc.info"
	@rm -fv "$(docdir)/tcc-doc.html"
	@rm -frv "$(tccdir)"

# install progs & libs on windows
install-win:
	$(call IBw,$(PROGS) $(PROGS_CROSS) $(subst libtcc.a,,$(LIBTCC)),"$(bindir)")
	$(call IF,$(TOPSRC)/win32/lib/*.def,"$(tccdir)/lib")
	$(call IFw,libtcc1.a $(B_O) $(LIBTCC1_W),"$(tccdir)/lib")
	$(call IF,$(TOPSRC)/include/*.h $(TOPSRC)/tcclib.h,"$(tccdir)/include")
	$(call IR,$(TOPSRC)/win32/include,"$(tccdir)/include")
	$(call IR,$(TOPSRC)/win32/examples,"$(tccdir)/examples")
	$(call IF,$(TOPSRC)/tests/libtcc_test.c,"$(tccdir)/examples")
	$(call IFw,$(TOPSRC)/libtcc.h $(subst .dll,.def,$(LIBTCC)),"$(libdir)")
	$(call IFw,$(TOPSRC)/win32/tcc-win32.txt tcc-doc.html,"$(docdir)")
ifneq "$(wildcard $(LIBTCC1_U))" ""
	$(call IFw,$(LIBTCC1_U),"$(tccdir)/lib")
	$(call IF,$(TOPSRC)/include/*.h $(TOPSRC)/tcclib.h,"$(tccdir)/lib/include")
endif

# the msys-git shell works to configure && make except it does not have install
ifeq ($(CONFIG_WIN32)-$(shell which install || echo no),yes-no)
install-win : INSTALL = cp
install-win : INSTALLBIN = cp
endif

# uninstall on windows
uninstall-win:
	@rm -fv $(foreach P,libtcc.dll $(PROGS) *-tcc.exe,"$(bindir)"/$P)
	@rm -fr $(foreach P,doc examples include lib libtcc,"$(tccdir)/$P"/*)
	@rm -frv $(foreach P,doc examples include lib libtcc,"$(tccdir)/$P")

# --------------------------------------------------------------------------
# other stuff

TAGFILES = *.[ch] include/*.h lib/*.[chS]
tags : ; ctags $(TAGFILES)
# cannot have both tags and TAGS on windows
ETAGS : ; etags $(TAGFILES)

# create release tarball from *current* git branch (including tcc-doc.html
# and converting two files to CRLF)
TCC-VERSION = tcc-$(VERSION)
TCC-VERSION = tinycc-mob-$(shell git rev-parse --short=7 HEAD)
tar:    tcc-doc.html
	mkdir -p $(TCC-VERSION)
	( cd $(TCC-VERSION) && git --git-dir ../.git checkout -f )
	cp tcc-doc.html $(TCC-VERSION)
	for f in tcc-win32.txt build-tcc.bat ; do \
	    cat win32/$$f | sed 's,\(.*\),\1\r,g' > $(TCC-VERSION)/win32/$$f ; \
	done
	tar cjf $(TCC-VERSION).tar.bz2 $(TCC-VERSION)
	rm -rf $(TCC-VERSION)
	git reset

config.mak:
	$(if $(wildcard $@),,@echo "Please run ./configure." && exit 1)

# run all tests
test:
	@$(MAKE) -C tests
# run test(s) from tests2 subdir (see make help)
tests2.%:
	@$(MAKE) -C tests/tests2 $@

testspp.%:
	@$(MAKE) -C tests/pp $@

clean:
	@rm -f tcc$(EXESUF) tcc_p$(EXESUF) *-tcc$(EXESUF) tags ETAGS *.pod
	@rm -f *.o *.a *.so* *.out *.log lib*.def *.exe *.dll a.out *.dylib *_.h
	@$(MAKE) -s -C lib $@
	@$(MAKE) -s -C tests $@

distclean: clean
	@rm -fv config.h config.mak config.texi
	@rm -fv $(TCCDOCS)

.PHONY: all clean test tar tags ETAGS doc distclean install uninstall FORCE

help:
	@echo "make"
	@echo "   build native compiler (from separate objects)"
	@echo ""
	@echo "make cross"
	@echo "   build cross compilers (from one source)"
	@echo ""
	@echo "make ONE_SOURCE=no/yes SILENT=no/yes"
	@echo "   force building from separate/one object(s), less/more silently"
	@echo ""
	@echo "make cross-TARGET"
	@echo "   build one specific cross compiler for 'TARGET'. Currently supported:"
	@echo "      $(wordlist 1,6,$(TCC_X))"
	@echo "      $(wordlist 7,99,$(TCC_X))"
	@echo ""
	@echo "make test"
	@echo "   run all tests"
	@echo ""
	@echo "make tests2.all / make tests2.37 / make tests2.37+"
	@echo "   run all/single test(s) from tests2, optionally update .expect"
	@echo ""
	@echo "make testspp.all / make testspp.17"
	@echo "   run all/single test(s) from tests/pp"
	@echo ""
	@echo "Other supported make targets:"
	@echo "   install install-strip doc clean tags ETAGS tar distclean help"
	@echo ""
	@echo "Custom configuration:"
	@echo "   The makefile includes a file 'config-extra.mak' if it is present."
	@echo "   This file may contain some custom configuration.  For example:"
	@echo "      NATIVE_DEFINES += -D..."
	@echo "   Or for example to configure the search paths for a cross-compiler"
	@echo "   that expects the linux files in <tccdir>/i386-linux:"
	@echo "      ROOT-i386 = {B}/i386-linux"
	@echo "      CRT-i386  = {B}/i386-linux/usr/lib"
	@echo "      LIB-i386  = {B}/i386-linux/lib:{B}/i386-linux/usr/lib"
	@echo "      INC-i386  = {B}/lib/include:{B}/i386-linux/usr/include"
	@echo "      DEF-i386  += -D__linux__"

# --------------------------------------------------------------------------
endif # ($(INCLUDED),no)