makefile.in

早期freebsd实现

.c.o:
	$(CC) -c $(ALL_CFLAGS) $(ALL_CPPFLAGS) $(INCLUDES) $<

# This tells GNU make version 3 not to export all the variables
# defined in this file into the environment.
.NOEXPORT:

# Lists of files for various purposes.

# A list of all the language-specific executables.
COMPILERS = cc1 cc1plus cc1obj

# Language-specific object files for C.
C_OBJS = c-parse.o c-lang.o c-lex.o \
   c-decl.o c-typeck.o c-convert.o c-aux-info.o c-common.o c-pragma.o

# Language-specific object files for Objectionable C.
OBJC_OBJS = objc-parse.o objc-actions.o \
   c-lex.o c-decl.o c-typeck.o c-convert.o c-aux-info.o c-common.o c-pragma.o

# Language-specific object files for C++.
CPLUS_OBJS = cp-parse.o cp-decl.o cp-decl2.o \
   cp-typeck.o cp-type2.o cp-tree.o cp-ptree.o \
   cp-cvt.o cp-search.o cp-lex.o cp-gc.o cp-call.o \
   cp-class.o cp-init.o cp-method.o cp-except.o \
   cp-expr.o cp-pt.o cp-edsel.o cp-xref.o \
   $(CPLUS_INPUT) cp-spew.o c-common.o

# Language-independent object files.
OBJS = toplev.o version.o tree.o print-tree.o stor-layout.o fold-const.o \
 function.o stmt.o expr.o calls.o expmed.o explow.o optabs.o varasm.o \
 rtl.o print-rtl.o rtlanal.o emit-rtl.o \
 dbxout.o sdbout.o dwarfout.o xcoffout.o \
 integrate.o jump.o cse.o loop.o unroll.o flow.o stupid.o combine.o \
 regclass.o local-alloc.o global.o reload.o reload1.o caller-save.o \
 insn-peep.o reorg.o sched.o final.o recog.o reg-stack.o \
 insn-recog.o insn-extract.o insn-output.o insn-emit.o \
 insn-attrtab.o aux-output.o getpwd.o $(EXTRA_OBJS)

# GEN files are listed separately, so they can be built before doing parallel
#  makes for cc1 or cc1plus.  Otherwise sequent parallel make attempts to load
#  them before rtl.o is compiled.
GEN= genemit genoutput genrecog genextract genflags gencodes genconfig genpeep

# Files to be copied away after each stage in building.
STAGESTUFF = *.o insn-flags.h insn-config.h insn-codes.h \
 insn-output.c insn-recog.c insn-emit.c insn-extract.c insn-peep.c \
 insn-attr.h insn-attrtab.c \
 stamp-flags stamp-config stamp-codes \
 stamp-output stamp-recog stamp-emit stamp-extract stamp-peep \
 stamp-attr stamp-attrtab stamp-proto \
 genemit genoutput genrecog genextract genflags gencodes genconfig genpeep \
 genattrtab genattr \
 $(GCC_PASSES) $(EXTRA_PARTS) $(EXTRA_PROGRAMS) gcc-cross cccp \
 cc1plus cc1obj enquire protoize unprotoize specs collect2 $(USE_COLLECT2)

# Members of libgcc1.a.
LIB1FUNCS = _mulsi3 _udivsi3 _divsi3 _umodsi3 _modsi3 \
   _lshrsi3 _lshlsi3 _ashrsi3 _ashlsi3 \
   _divdf3 _muldf3 _negdf2 _adddf3 _subdf3 \
   _fixdfsi _fixsfsi _floatsidf _floatsisf _truncdfsf2 _extendsfdf2 \
   _addsf3 _negsf2 _subsf3 _mulsf3 _divsf3 \
   _eqdf2 _nedf2 _gtdf2 _gedf2 _ltdf2 _ledf2 \
   _eqsf2 _nesf2 _gtsf2 _gesf2 _ltsf2 _lesf2

# Library members defined in libgcc2.c.
LIB2FUNCS = _muldi3 _divdi3 _moddi3 _udivdi3 _umoddi3 _negdi2 \
     _lshrdi3 _lshldi3 _ashldi3 _ashrdi3  \
    _udiv_w_sdiv _udivmoddi4 _cmpdi2 _ucmpdi2 _floatdidf _floatdisf \
    _fixunsdfsi _fixunssfsi _fixunsdfdi _fixdfdi _fixunssfdi _fixsfdi \
    __gcc_bcmp _varargs _eprintf _builtin_new _caps_New _builtin_del \
    _bb _shtab _clear_cache _trampoline __main _exit _ctors

# Header files that are made available under the same name
# to programs compiled with GCC.
USER_H = va-alpha.h va-i860.h va-i960.h va-mips.h va-m88k.h \
    va-pa.h va-pyr.h va-sparc.h va-spur.h proto.h $(EXTRA_HEADERS)

# All the header files that are installed for users from GCC itself.
INSTALLED_H = float.h stddef.h stdarg.h varargs.h $(USER_H) limits.h \
    syslimits.h

# The files that "belong" in CONFIG_H are deliberately omitted
# because having them there would not be useful in actual practice.
# All they would do is cause complete recompilation every time
# one of the machine description files is edited.
# That may or may not be what one wants to do.
# If it is, rm *.o is an easy way to do it.
# CONFIG_H = config.h tm.h
CONFIG_H =
RTL_H = rtl.h rtl.def machmode.h machmode.def
TREE_H = tree.h real.h tree.def machmode.h machmode.def
CPLUS_TREE_H = $(TREE_H) cp-tree.h cp-tree.def

# Avoid a lot of time thinking about remaking Makefile.in and *.def.
.SUFFIXES: .in .def

Makefile: $(srcdir)/Makefile.in $(srcdir)/configure $(srcdir)/version.c \
   $(srcdir)/config/$(xmake_file) $(srcdir)/config/$(tmake_file)
	sh config.status

all.internal: start.encap rest.encap
# This is what to compile if making a cross-compiler.
all.cross: native gcc-cross specs libgcc.a cross-test $(EXTRA_PARTS)
# This is what to compile if making gcc with a cross-compiler.
all.build: native xgcc $(EXTRA_PARTS)
# This is what must be made before installing GCC and converting libraries.
start.encap: native xgcc specs $(LIBGCC1) xlimits.h
# Use this to make a GCC that will be used only to recompile GCC.
for-bootstrap: start.encap libgcc.a
# These can't be made, with COFF encapsulation, until after GCC can run.
rest.encap: libgcc.a float.h  $(EXTRA_PARTS)
# This is what is made with the host's compiler
# whether making a cross compiler or not.
native: config.status cpp $(LANGUAGES) $(EXTRA_PASSES) $(EXTRA_PROGRAMS) $(USE_COLLECT2)

# Define the names for selecting languages in LANGUAGES.
C c: cc1
C++ c++: cc1plus
OBJC objc: cc1obj objc-runtime
OBJECTIVE-C objective-c: cc1obj objc-runtime
PROTO: proto

# Really, really stupid make features, such as SUN's KEEP_STATE, may force
# a target to build even if it is up-to-date.  So we must verify that
# config.status does not exist before failing.
config.status:
	@if [ ! -f config.status ] ; then \
	  echo You must configure gcc.  Look at the INSTALL file for details.; \
	  false; \
	else \
	  true; \
	fi

# On the target machine, finish building a cross compiler.
# This does the things that can't be done on the host machine.
rest.cross: libgcc.a float.h specs

# Verify that it works to compile and link cross-test.
# If it does, then there are sufficient replacements for libgcc1.a.
cross-test: cross-test.o native gcc-cross libgcc.a
	$(GCC_FOR_TARGET) $(GCC_CFLAGS) cross-test.o -o $@
cross-test.o: cross-test.c native gcc-cross
	$(GCC_FOR_TARGET) $(GCC_CFLAGS) $(ALL_CPPFLAGS) -c $(srcdir)/cross-test.c

# Recompile all the language-independent object files.
# This is used only if the user explicitly asks for it.
compilations: ${OBJS}

# We call this executable `xgcc' rather than `gcc'
# to avoid confusion if the current directory is in the path
# and CC is `gcc'.  It is renamed to `gcc' when it is installed.
xgcc: gcc.o version.o $(LIBDEPS)
	$(CC) $(ALL_CFLAGS) $(LDFLAGS) -o xgcc gcc.o version.o $(LIBS)

# Dump a specs file to make -B./ read these specs over installed ones.
specs: xgcc
	./xgcc -dumpspecs > specs

# We do want to create an executable named `xgcc', so we can use it to
# compile libgcc2.a.
# Also create gcc-cross, so that install-common will install properly.
gcc-cross: xgcc
	cp xgcc gcc-cross

cc1:$(P) $(C_OBJS) $(OBJS) $(LIBDEPS)
	$(CC) $(ALL_CFLAGS) $(LDFLAGS) -o cc1 $(C_OBJS) $(OBJS) $(LIBS)

cc1plus:$(P) $(CPLUS_OBJS) $(OBJS) $(LIBDEPS)
	$(CC) $(ALL_CFLAGS) $(LDFLAGS) -o cc1plus $(CPLUS_OBJS) $(OBJS) $(LIBS)

cc1obj:$(P) $(OBJC_OBJS) $(OBJS) $(LIBDEPS)
	$(CC) $(ALL_CFLAGS) $(LDFLAGS) -o cc1obj $(OBJC_OBJS) $(OBJS) $(LIBS)

float.h: enquire
	-./enquire -f > tmp-float.h
	mv tmp-float.h float.h

# Used to compile enquire with standard cc, but have forgotten why.
# Let's try with GCC.
enquire: enquire.o $(GCC_PARTS)
	$(GCC_FOR_TARGET) $(GCC_CFLAGS) $(ENQUIRE_LDFLAGS) enquire.o -o $@
enquire.o: $(srcdir)/enquire.c $(GCC_PASSES)
#	-if [ "$(srcdir)" != "." ]; then rm -f ./enquire.c; else true; fi
#	-cp $(srcdir)/enquire.c . > /dev/null 2>&1
# Breaking this line caused a problem with one version of GNU make.
	$(GCC_FOR_TARGET) $(GCC_CFLAGS) $(ALL_CPPFLAGS) $(ENQUIRE_CFLAGS) -I. -c $(srcdir)/enquire.c

# Build the version of limits.h that we will install.
xlimits.h: glimits.h limitx.h limity.h
	if [ -f $(SYSTEM_HEADER_DIR)/limits.h ] ; then \
	  cat $(srcdir)/limitx.h $(srcdir)/glimits.h $(srcdir)/limity.h > xlimits.h; \
	else \
	  cat $(srcdir)/glimits.h > xlimits.h; \
	fi

# Build libgcc.a.
# This is done in two parts because some functions, in libgcc1.c,
# must be compiled with something other than GCC,
# while the rest, in libgcc2.c, must be compiled with xgcc.
# That means we can't do libgcc2.c until after xgcc, cc1, etc.

# Use this as value of LIBGCC1 to cause conversion to GNU library format.
# LIBCONVERT should put its output in libgcc1.conv.
libgcc1.conv: libgcc1.a
	$(LIBCONVERT) libgcc1.a libgcc1.conv

# Use this as value of LIBGCC1 to inhibit use of libgcc1.c entirely.
# Make an empty file instead.
libgcc1.null: $(CROSS_TOOLS) $(GCC_PASSES)
	echo "__foo () {}" > dummy.c
	$(GCC_FOR_TARGET) $(GCC_CFLAGS) -c dummy.c
	$(OLDAR) $(OLDAR_FLAGS) libgcc1.null dummy.o
	rm -f dummy.o dummy.c

# This is $(LIBGCC1) for a cross-compiler.
# We have no automatic way of building libgcc1.a, 
# so it's up to the installer to find a way to do that.
# This rule deliberately does not depend on libgcc1.a
# so that it will fail if the installer hasn't provided it.
libgcc1.cross:
	mv libgcc1.a libgcc1.cross || (echo You must find a way to make libgcc1.a; false)

# Compile the library of arithmetic subroutines with the native compiler.
# Don't compile it with GCC!
# (That would cause most arithmetic functions to call themselves.)
libgcc1.a: libgcc1.c $(CONFIG_H) $(LIB1FUNCS_EXTRA) config.status
	-rm -f tmplibgcc1.a
# Actually build it in tmplibgcc1.a, then rename at end,
# so that libgcc1.a itself remains nonexistent if compilation is aborted.
# -e causes any failing command to make this rule fail.
# -e doesn't work in certain shells, so we test $$? as well.
	set -e; \
	for name in $(LIB1FUNCS); \
	do \
	  echo $${name}; \
	  rm -f $${name}.o; \
	  $(OLDCC) $(CCLIBFLAGS) $(INCLUDES) -c -DL$${name} $(srcdir)/libgcc1.c; \
	  if [ $$? -eq 0 ] ; then true; else exit 1; fi; \
	  mv libgcc1.o $${name}.o; \
	  $(OLDAR) $(OLDAR_FLAGS) tmplibgcc1.a $${name}.o; \
	  rm -f $${name}.o; \
	done
# Some shells crash when a loop has no items.
# So make sure there is always at least one--`..'.
# Then ignore it.
# We don't use -e here because there are if statements
# that should not make the command give up when the if condition is false.
# Instead, we test for failure after each command where it matters.
	-for file in .. $(LIB1FUNCS_EXTRA); \
	do \
	  if [ x$${file} != x.. ]; then \
	    name=`echo $${file} | sed -e 's/[.]c$$//' -e 's/[.]asm$$//'`; \
	    echo $${name}; \
	    if [ $${name}.asm = $${file} ]; then \
	      cp $${file} $${name}.s || exit 1; file=$${name}.s; \
	    else true; fi; \
	    $(OLDCC) $(CCLIBFLAGS) $(INCLUDES) -c $${file}; \
	    if [ $$? -eq 0 ] ; then true; else exit 1; fi; \
	    $(OLDAR) $(OLDAR_FLAGS) tmplibgcc1.a $${name}.o; \
	    if [ $$? -eq 0 ] ; then true; else exit 1; fi; \
	    rm -f $${name}.[so]; \
	  else true; \
	  fi; \
	done
	mv tmplibgcc1.a libgcc1.a

# Compiling libgcc2.a requires making sure that cc1, etc. have been compiled.
# But recompiling cc1 should not force recompilation of libgcc2.a.
# If you want to force recompilation, delete libgcc2.a.
# Depend on install-cross-tools to make sure we set up properly 
# to run the assembler before we try compiling anything.
# install-cross-tools does nothing if not cross compiling.
libgcc2.ready: $(GCC_PASSES) $(CROSS_TOOLS)
	-if [ -f libgcc2.ready ] ; then \
		true; \
	else \
		touch libgcc2.ready; \
	fi

libgcc2.a: libgcc2.c libgcc2.ready $(CONFIG_H) $(LIB2FUNCS_EXTRA) \
   machmode.h longlong.h gbl-ctors.h config.status
# Actually build it in tmplibgcc2.a, then rename at end,
# so that libgcc2.a itself remains nonexistent if compilation is aborted.
	-rm -f tmplibgcc2.a
# -e causes any failing command to make this rule fail.
# -e doesn't work in certain shells, so we test $$? as well.
	set -e; \
	for name in $(LIB2FUNCS); \
	do \
	  echo $${name}; \
	  $(GCC_FOR_TARGET) $(LIBGCC2_CFLAGS) $(INCLUDES) -c -DL$${name} \
	      $(srcdir)/libgcc2.c -o $${name}.o; \
	  if [ $$? -eq 0 ] ; then true; else exit 1; fi; \
	  $(AR) $(AR_FLAGS) tmplibgcc2.a $${name}.o; \
	  rm -f $${name}.o; \
	done
# Some shells crash when a loop has no items.
# So make sure there is always at least one--`..'.
# Then ignore it.
# We don't use -e here because there are if statements
# that should not make the command give up when the if condition is false.
# Instead, we test for failure after each command where it matters.
	-for file in .. $(LIB2FUNCS_EXTRA); \
	do \
	  if [ x$${file} != x.. ]; then \
	    name=`echo $${file} | sed -e 's/[.]c$$//' -e 's/[.]asm$$//'`; \
	    echo $${name}; \
	    if [ $${name}.asm = $${file} ]; then \
	      cp $${file} $${name}.s || exit 1; file=$${name}.s; \
	    else true; fi; \
	    $(GCC_FOR_TARGET) $(LIBGCC2_CFLAGS) $(INCLUDES) -c $${file}; \
	    if [ $$? -eq 0 ] ; then true; else exit 1; fi; \
	    $(AR) $(AR_FLAGS) tmplibgcc2.a $${name}.o; \
	    rm -f $${name}.[so]; \
	  else true; \
	  fi; \
	done
	mv tmplibgcc2.a libgcc2.a
# These lines were deleted from above the mv command
# because ranlibing libgcc.a itself should suffice.
#	-if [ x${HPUX_GAS} = x ] ; then \
#	  if $(RANLIB_TEST) ; then $(RANLIB) tmplibgcc2.a; else true; fi \
#	else true; fi

# Combine the various libraries into a single library, libgcc.a.
libgcc.a: $(LIBGCC1) $(LIBGCC2)
	-rm -rf tmplibgcc.a libgcc.a tmpcopy
	mkdir tmpcopy
	-if [ x$(LIBGCC1) != x ];			\