--- gcc/Makefile	2018/04/24 16:37:52	1.1
+++ gcc/Makefile	2018/04/24 16:44:45	1.1.1.9
@@ -19,189 +19,340 @@
 #and this notice must be preserved on all copies.
 
 
-CFLAGS = -g -I.
+CFLAGS = -g
 CC = cc
+# OLDCC should not be the GNU C compiler.
+OLDCC = cc
+BISON = bison
+AR = ar
+SHELL = /bin/sh
+
+bindir = /usr/local
+libdir = /usr/local/lib
+
+# These are what you would need on HPUX:
+# CFLAGS = -Wc,-Ns2000 -Wc,-Ne700
+# -g is desirable in CFLAGS, but a compiler bug in HPUX version 5
+# bites whenever tree.def, rtl.def or machmode.def is included
+# (ie., on every source file).
+# CCLIBFLAGS = -Wc,-Ns2000 -Wc,-Ne700
+# For CCLIBFLAGS you might want to specify the switch that
+# forces only 68000 instructions to be used.
+
+# If you are making gcc for the first time, and if you are compiling it with
+# a non-gcc compiler, and if your system doesn't have a working alloca() in any
+# of the standard libraries (as is true for HP/UX or Genix),
+# then get alloca.c from GNU Emacs and un-comment the following line:
+# ALLOCA = alloca.o
+
+# If your system has alloca() in /lib/libPW.a, un-comment the following line:
+# CLIB= -lPW
+  
+# If your system's malloc() routine fails for any reason (as it does on
+# certain versions of Genix), try getting the files
+# malloc.c and getpagesize.h from GNU Emacs and un-comment the following line:
+# MALLOC = malloc.o
 
-# How to link with obstack
+# If you are running GCC on an Apollo, you will need this:
+# CFLAGS = -g -O -M 3000 -U__STDC__ -DSHORT_ENUM_BUG
+
+# Change this to a null string if obstacks are installed in the
+# system library.
 OBSTACK=obstack.o
-# Dependency on obstack
-OBSTACK1=obstack.o
 
-LIBS = $(OBSTACK) $(CLIB)
+# Dependency on obstack, alloca, malloc or whatever library facilities
+# are not installed in the system libraries.
+LIBDEPS= $(OBSTACK) $(ALLOCA) $(MALLOC)
+
+# How to link with both our special library facilities
+# and the system's installed libraries.
+LIBS = $(OBSTACK) $(ALLOCA) $(MALLOC) $(CLIB)
+
 DIR = ../gcc
 
-OBJS = toplev.o parse.tab.o tree.o print-tree.o \
- decl.o typecheck.o stor-layout.o fold-const.o \
- varasm.o rtl.o expr.o stmt.o expmed.o explow.o optabs.o \
- symout.o dbxout.o emit-rtl.o insn-emit.o \
- jump.o cse.o loop.o flow.o stupid.o combine.o \
- regclass.o local-alloc.o global-alloc.o reload.o reload1.o \
+# Object files of CC1.
+OBJS = toplev.o version.o c-parse.tab.o tree.o print-tree.o \
+ c-decl.o c-typeck.o c-convert.o stor-layout.o fold-const.o \
+ rtl.o expr.o stmt.o expmed.o explow.o optabs.o varasm.o \
+ symout.o dbxout.o sdbout.o emit-rtl.o insn-emit.o \
+ integrate.o jump.o cse.o loop.o flow.o stupid.o combine.o \
+ regclass.o local-alloc.o global-alloc.o reload.o reload1.o insn-peep.o \
  final.o recog.o insn-recog.o insn-extract.o insn-output.o
 
+# Files to be copied away after each stage in building.
+STAGE_GCC=gcc
+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 \
+ genemit genoutput genrecog genextract genflags gencodes genconfig genpeep \
+ cc1 cpp cccp
+
+# Members of gnulib.
+LIBFUNCS = _eprintf \
+   _umulsi3 _mulsi3 _udivsi3 _divsi3 _umodsi3 _modsi3 \
+   _lshrsi3 _lshlsi3 _ashrsi3 _ashlsi3 \
+   _divdf3 _muldf3 _negdf2 _adddf3 _subdf3 _cmpdf2 \
+   _fixunsdfsi _fixunsdfdi _fixdfsi _fixdfdi \
+   _floatsidf _floatdidf _truncdfsf2 _extendsfdf2 \
+   _addsf3 _negsf2 _subsf3 _cmpsf2 _mulsf3 _divsf3
+
+# Header files that are made available to programs compiled with gcc.
+USER_H = stddef.h stdarg.h assert.h varargs.h va-*.h limits.h
+
 # If you want to recompile everything, just do rm *.o.
 # CONFIG_H = config.h tm.h
 CONFIG_H =
 RTL_H = rtl.h rtl.def machmode.def
 TREE_H = tree.h tree.def machmode.def
 
-all: gcc cc1 cpp
+all: gnulib gcc cc1 cpp
 
-gcc: gcc.o $(OBSTACK1)
-	ld -o gcc /lib/crt0.o gcc.o -lg $(LIBS) -lc
+doc: cpp.info internals
 
-gcc.o: gcc.c $(CONFIG)
-	$(CC) -c $(CFLAGS) gcc.c
+compilations: ${OBJS}
 
-cc1: $(OBJS) $(OBSTACK1)
-	ld -o cc1 /lib/crt0.o $(OBJS) -lg $(LIBS) -lc
+gcc: gcc.o version.o $(LIBDEPS)
+	$(CC) $(CFLAGS) $(LDFLAGS) -o gccnew gcc.o version.o $(LIBS)
+# Go via `gccnew' to avoid `file busy' if $(CC) is `gcc'.
+	mv gccnew gcc
+
+gcc.o: gcc.c $(CONFIG_H)
+	$(CC) $(CFLAGS) -c -DSTANDARD_EXEC_PREFIX=\"$(libdir)/gcc-\" gcc.c
+
+cc1: $(OBJS) $(LIBDEPS)
+	$(CC) $(CFLAGS) $(LDFLAGS) -o cc1 $(OBJS) $(LIBS)
+
+#Library of arithmetic subroutines
+# Don't compile this with gcc!
+gnulib: gnulib.c
+	-mkdir libtemp
+	cd libtemp; \
+	rm -f gnulib; \
+	for name in $(LIBFUNCS); \
+	do \
+	  echo $${name}; \
+	  rm -f $${name}.c; \
+	  ln ../gnulib.c $${name}.c; \
+	  $(OLDCC) $(CCLIBFLAGS) -O -I.. -c -DL$${name} $${name}.c; \
+	  $(AR) qc gnulib $${name}.o; \
+	done
+	mv libtemp/gnulib .
+	rm -rf libtemp
+	if [ -f /usr/bin/ranlib ] ; then  ranlib gnulib ;fi
+# On HPUX, if you are working with the GNU assembler and linker,
+# the previous line must be replaced with
+# No change is needed here if you are using the HPUX assembler and linker.
+#	mv gnulib gnulib-hp
+#	hpxt gnulib-hp gnulib
+
+
+# C-language specific files.
+
+c-parse.tab.o : c-parse.tab.c $(CONFIG_H) $(TREE_H) c-parse.h c-tree.h
+c-parse.tab.c : c-parse.y
+	$(BISON) -v c-parse.y
+
+c-decl.o : c-decl.c $(CONFIG_H) $(TREE_H) c-tree.h c-parse.h flags.h
+c-typeck.o : c-typeck.c $(CONFIG_H) $(TREE_H) c-tree.h flags.h
+c-convert.o : c-convert.c $(CONFIG_H) $(TREE_H)
 
-ccprof: $(OBJS) $(OBSTACK1)
-	ld -o cc1 /usr/lib/gcrt0.o $(OBJS) -lg $(OBSTACK) /usr/lib/libc_p.a -lc
+# Language-independent files.
 
-decl.o : decl.c $(CONFIG_H) $(TREE_H) parse.h c-tree.h
-typecheck.o : typecheck.c $(CONFIG_H) $(TREE_H) c-tree.h
 tree.o : tree.c $(CONFIG_H) $(TREE_H)
 print-tree.o : print-tree.c $(CONFIG_H) $(TREE_H)
 stor-layout.o : stor-layout.c $(CONFIG_H) $(TREE_H)
 fold-const.o : fold-const.c $(CONFIG_H) $(TREE_H)
-toplev.o : toplev.c $(CONFIG_H) $(TREE_H)
-varasm.o : varasm.c $(CONFIG_H) $(TREE_H) $(RTL_H)
-
-parse.tab.o : parse.tab.c $(CONFIG_H) $(TREE_H) parse.h c-tree.h
-
-parse.tab.c : parse.y
-	bison -v parse.y
+toplev.o : toplev.c $(CONFIG_H) $(TREE_H) flags.h
 
 rtl.o : rtl.c $(CONFIG_H) $(RTL_H)
 
-stmt.o : stmt.c $(CONFIG_H) $(RTL_H) $(TREE_H) insn-flags.h stupid.h
-expr.o : expr.c $(CONFIG_H) $(RTL_H) $(TREE_H) insn-flags.h insn-codes.h expr.h
-expmed.o : expmed.c $(CONFIG_H) $(RTL_H) $(TREE_H) insn-flags.h insn-codes.h expr.h
-explow.o : explow.c $(CONFIG_H) $(RTL_H) $(TREE_H) expr.h
-optabs.o : optabs.c $(CONFIG_H) $(RTL_H) $(TREE_H) insn-flags.h insn-codes.h expr.h insn-config.h recog.h
-symout.o : symout.c $(CONFIG_H) $(TREE_H) $(RTL_H) symseg.h
-dbxout.o : symout.c $(CONFIG_H) $(TREE_H) $(RTL_H) c-tree.h
+varasm.o : varasm.c $(CONFIG_H) $(TREE_H) $(RTL_H) flags.h expr.h insn-codes.h
+stmt.o : stmt.c $(CONFIG_H) $(RTL_H) $(TREE_H) flags.h  \
+   insn-flags.h expr.h insn-config.h regs.h insn-codes.h
+expr.o : expr.c $(CONFIG_H) $(RTL_H) $(TREE_H) flags.h  \
+   insn-flags.h insn-codes.h expr.h insn-config.h recog.h
+expmed.o : expmed.c $(CONFIG_H) $(RTL_H) $(TREE_H) flags.h  \
+   insn-flags.h insn-codes.h expr.h insn-config.h recog.h
+explow.o : explow.c $(CONFIG_H) $(RTL_H) $(TREE_H) flags.h expr.h insn-codes.h
+optabs.o : optabs.c $(CONFIG_H) $(RTL_H) $(TREE_H) flags.h  \
+   insn-flags.h insn-codes.h expr.h insn-config.h recog.h
+symout.o : symout.c $(CONFIG_H) $(TREE_H) $(RTL_H) symseg.h gdbfiles.h
+dbxout.o : dbxout.c $(CONFIG_H) $(TREE_H) $(RTL_H) flags.h
+sdbout.o : sdbout.c $(CONFIG_H) $(TREE_H) $(RTL_H) c-tree.h
+
+emit-rtl.o : emit-rtl.c $(CONFIG_H) $(RTL_H) regs.h insn-config.h
 
-emit-rtl.o : emit-rtl.c $(CONFIG_H) $(RTL_H) regs.h recog.h insn-config.h
+integrate.o : integrate.c $(CONFIG_H) $(RTL_H) $(TREE_H) flags.h expr.h \
+   insn-flags.h insn-codes.h
 
-jump.o : jump.c $(CONFIG_H) $(RTL_H)
-stupid.o : stupid.c $(CONFIG_H) $(RTL_H) regs.h  hard-reg-set.h stupid.h
+jump.o : jump.c $(CONFIG_H) $(RTL_H) flags.h regs.h
+stupid.o : stupid.c $(CONFIG_H) $(RTL_H) regs.h hard-reg-set.h
 
-cse.o : cse.c $(CONFIG_H) $(RTL_H) insn-config.h regs.h
+cse.o : cse.c $(CONFIG_H) $(RTL_H) regs.h hard-reg-set.h flags.h
 loop.o : loop.c $(CONFIG_H) $(RTL_H) insn-config.h regs.h recog.h
-flow.o : flow.c $(CONFIG_H) $(RTL_H) basic-block.h regs.h
-combine.o : combine.c $(CONFIG_H) $(RTL_H) insn-config.h regs.h basic-block.h recog.h
-regclass.o : regclass.c $(CONFIG_H) $(RTL_H) regs.h insn-config.h recog.h
-local-alloc.o : local-alloc.c $(CONFIG_H) $(RTL_H) basic-block.h regs.h hard-reg-set.h
-global-alloc.o : global-alloc.c $(CONFIG_H) $(RTL_H) basic-block.h regs.h hard-reg-set.h insn-config.h
-
-reload.o : reload.c $(CONFIG_H) $(RTL_H) reload.h recog.h hard-reg-set.h insn-config.h regs.h
-reload1.o : reload1.c $(CONFIG_H) $(RTL_H) reload.h regs.h hard-reg-set.h insn-config.h basic-block.h
-final.o : final.c $(CONFIG_H) $(RTL_H) regs.h recog.h conditions.h
-recog.o : recog.c $(CONFIG_H) $(RTL_H) regs.h recog.h hard-reg-set.h insn-config.h
+flow.o : flow.c $(CONFIG_H) $(RTL_H) basic-block.h regs.h hard-reg-set.h
+combine.o : combine.c $(CONFIG_H) $(RTL_H) flags.h  \
+   insn-config.h regs.h basic-block.h recog.h
+regclass.o : regclass.c $(CONFIG_H) $(RTL_H) flags.h regs.h \
+   insn-config.h recog.h hard-reg-set.h
+local-alloc.o : local-alloc.c $(CONFIG_H) $(RTL_H) basic-block.h regs.h \
+   insn-config.h recog.h hard-reg-set.h
+global-alloc.o : global-alloc.c $(CONFIG_H) $(RTL_H) flags.h  \
+   basic-block.h regs.h hard-reg-set.h insn-config.h
+
+reload.o : reload.c $(CONFIG_H) $(RTL_H)  \
+   reload.h recog.h hard-reg-set.h insn-config.h regs.h
+reload1.o : reload1.c $(CONFIG_H) $(RTL_H) flags.h  \
+   reload.h regs.h hard-reg-set.h insn-config.h basic-block.h
+final.o : final.c $(CONFIG_H) $(RTL_H) regs.h recog.h conditions.h gdbfiles.h \
+   insn-config.h
+recog.o : recog.c $(CONFIG_H) $(RTL_H)  \
+   regs.h recog.h hard-reg-set.h insn-config.h
 
 # Now the source files that are generated from the machine description.
 
+.PRECIOUS: insn-config.h insn-flags.h insn-codes.h \
+  insn-emit.c insn-recog.c insn-extract.c insn-output.c insn-peep.c
+
 insn-config.h : md genconfig
-	genconfig md > insn-config.h
+	./genconfig md > tmp-insn-config.h
+	./move-if-change tmp-insn-config.h insn-config.h
 
 insn-flags.h : md genflags
-	genflags md > insn-flags.h
+	./genflags md > tmp-insn-flags.h
+	./move-if-change tmp-insn-flags.h insn-flags.h
 
 insn-codes.h : md gencodes
-	gencodes md > insn-codes.h
+	./gencodes md > tmp-insn-codes.h
+	./move-if-change tmp-insn-codes.h insn-codes.h
 
-insn-emit.o : insn-emit.c $(RTL_H) insn-config.h
-	$(CC) -c $(CFLAGS) insn-emit.c
+insn-emit.o : insn-emit.c $(CONFIG_H) $(RTL_H) expr.h insn-config.h
+	$(CC) $(CFLAGS) -c insn-emit.c
 
 insn-emit.c : md genemit
-	genemit md > insn-emit.c
+	./genemit md > tmp-insn-emit.c
+	./move-if-change tmp-insn-emit.c insn-emit.c
 
 insn-recog.o : insn-recog.c $(CONFIG_H) $(RTL_H) insn-config.h
-	$(CC) -c $(CFLAGS) insn-recog.c
+	$(CC) $(CFLAGS) -c insn-recog.c
 
 insn-recog.c : md genrecog
-	genrecog md > insn-recog.c
+	./genrecog md > tmp-insn-recog.c
+	./move-if-change tmp-insn-recog.c insn-recog.c
 
 insn-extract.o : insn-extract.c $(RTL_H)
-	$(CC) -c $(CFLAGS) insn-extract.c
+	$(CC) $(CFLAGS) -c insn-extract.c
 
 insn-extract.c : md genextract
-	genextract md > insn-extract.c
+	./genextract md > tmp-insn-extract.c
+	./move-if-change tmp-insn-extract.c insn-extract.c
+
+insn-peep.o : insn-peep.c $(CONFIG_H) $(RTL_H) regs.h
+	$(CC) $(CFLAGS) -c insn-peep.c
 
-insn-output.o : insn-output.c $(CONFIG_H) $(RTL_H) regs.h insn-config.h insn-flags.h conditions.h aux-output.c
-	$(CC) -c $(CFLAGS) insn-output.c
+insn-peep.c : md genpeep
+	./genpeep md > tmp-insn-peep.c
+	./move-if-change tmp-insn-peep.c insn-peep.c
+
+insn-output.o : insn-output.c $(CONFIG_H) $(RTL_H) regs.h insn-config.h insn-flags.h conditions.h output.h aux-output.c
+	$(CC) $(CFLAGS) -c insn-output.c
 
 insn-output.c : md genoutput
-	genoutput md > insn-output.c
+	./genoutput md > tmp-insn-output.c
+	./move-if-change tmp-insn-output.c insn-output.c
 
 # Now the programs that generate those files.
-# rtl.o is omitted as a dependency so that rtl.c can be recompiled
-# to fix its tables without forcing us to regenerate insn-*.c
-# and recompile them and regenerate insn-flags.h and recompile
-# everything that depends on it.
 
-genconfig : genconfig.o $(OBSTACK1)
-	$(CC) -o genconfig -g genconfig.o rtl.o $(LIBS)
+genconfig : genconfig.o rtl.o $(LIBDEPS)
+	$(CC) $(CFLAGS) $(LDFLAGS) -o genconfig genconfig.o rtl.o $(LIBS)
+
+genconfig.o : genconfig.c $(RTL_H)
+	$(CC) $(CFLAGS) -c genconfig.c
 
-genconfig.o : genconfig.c rtl.def
-	$(CC) -c $(CFLAGS) genconfig.c
+genflags : genflags.o rtl.o $(LIBDEPS)
+	$(CC) $(CFLAGS) $(LDFLAGS) -o genflags genflags.o rtl.o $(LIBS)
 
-genflags : genflags.o $(OBSTACK1)
-	$(CC) -o genflags -g genflags.o rtl.o $(LIBS)
+genflags.o : genflags.c $(RTL_H)
+	$(CC) $(CFLAGS) -c genflags.c
 
-genflags.o : genflags.c rtl.def
-	$(CC) -c $(CFLAGS) genflags.c
+gencodes : gencodes.o rtl.o $(LIBDEPS)
+	$(CC) $(CFLAGS) $(LDFLAGS) -o gencodes gencodes.o rtl.o $(LIBS)
 
-gencodes : gencodes.o $(OBSTACK1)
-	$(CC) -o gencodes -g gencodes.o rtl.o $(LIBS)
+gencodes.o : gencodes.c $(RTL_H)
+	$(CC) $(CFLAGS) -c gencodes.c
 
-gencodes.o : gencodes.c rtl.def
-	$(CC) -c $(CFLAGS) gencodes.c
+genemit : genemit.o rtl.o $(LIBDEPS)
+	$(CC) $(CFLAGS) $(LDFLAGS) -o genemit genemit.o rtl.o $(LIBS)
 
-genemit : genemit.o $(OBSTACK1)
-	$(CC) -o genemit -g genemit.o rtl.o $(LIBS)
+genemit.o : genemit.c $(RTL_H)
+	$(CC) $(CFLAGS) -c genemit.c
 
-genemit.o : genemit.c rtl.def
-	$(CC) -c $(CFLAGS) genemit.c
+genrecog : genrecog.o rtl.o $(LIBDEPS)
+	$(CC) $(CFLAGS) $(LDFLAGS) -o genrecog genrecog.o rtl.o $(LIBS)
 
-genrecog : genrecog.o $(OBSTACK1)
-	$(CC) -o genrecog -g genrecog.o rtl.o $(LIBS)
+genrecog.o : genrecog.c $(RTL_H)
+	$(CC) $(CFLAGS) -c genrecog.c
 
-genrecog.o : genrecog.c rtl.def
-	$(CC) -c $(CFLAGS) genrecog.c
+genextract : genextract.o rtl.o $(LIBDEPS)
+	$(CC) $(CFLAGS) $(LDFLAGS) -o genextract genextract.o rtl.o $(LIBS)
 
-genextract : genextract.o $(OBSTACK1)
-	$(CC) -o genextract -g genextract.o rtl.o $(LIBS)
+genextract.o : genextract.c $(RTL_H)
+	$(CC) $(CFLAGS) -c genextract.c
 
-genextract.o : genextract.c rtl.def
-	$(CC) -c $(CFLAGS) genextract.c
+genpeep : genpeep.o rtl.o $(LIBDEPS)
+	$(CC) $(CFLAGS) $(LDFLAGS) -o genpeep genpeep.o rtl.o $(LIBS)
 
-genoutput : genoutput.o $(OBSTACK1)
-	$(CC) -o genoutput -g genoutput.o rtl.o $(LIBS)
+genpeep.o : genpeep.c $(RTL_H)
+	$(CC) $(CFLAGS) -c genpeep.c
 
-genoutput.o : genoutput.c rtl.def
-	$(CC) -c $(CFLAGS) genoutput.c
+genoutput : genoutput.o rtl.o $(LIBDEPS)
+	$(CC) $(CFLAGS) $(LDFLAGS) -o genoutput genoutput.o rtl.o $(LIBS)
+
+genoutput.o : genoutput.c $(RTL_H)
+	$(CC) $(CFLAGS) -c genoutput.c
 
 # Making the preprocessor
 cpp: cccp
 	-rm -f cpp
 	ln cccp cpp
-cccp: cccp.o y.tab.o
-	cc -o cccp -g cccp.o y.tab.o
-y.tab.o: y.tab.c
-y.tab.c: cexp.y
-	echo expect 40 shift/reduce conflicts
-	yacc cexp.y
+cccp: cccp.o cexp.o version.o $(LIBDEPS)
+	$(CC) $(CFLAGS) $(LDFLAGS) -o cccp cccp.o cexp.o version.o $(LIBS)
+cexp.o: cexp.c
+cexp.c: cexp.y
+	$(BISON) cexp.y
+	mv cexp.tab.c cexp.c
 cccp.o: cccp.c
+	$(CC) $(CFLAGS) -DGCC_INCLUDE_DIR=\"$(libdir)/gcc-include\" \
+          -DGPLUSPLUS_INCLUDE_DIR=\"$(libdir)/g++-include\" -c cccp.c
+
+cpp.info: cpp.texinfo
+	makeinfo $<
 
+internals: internals.texinfo
+	makeinfo $<
+
+# gnulib is not deleted because deleting it would be inconvenient
+# for most uses of this target.
 clean:
-	-rm *.o
-	-rm parse.tab.c insn-flags.h insn-config.h insn-codes.h
-	-rm insn-output.c insn-recog.c insn-emit.c insn-extract.c
-	-rm genemit genoutput genrecog genextract genflags gencodes genconfig
-	-rm *.s *.s[0-9] *.co *.greg *.lreg *.combine *.flow *.cse *.jump *.rtl *.tree *.loop
-	-rm parse.output core
+	-rm -f $(STAGESTUFF) $(STAGE_GCC)
+	-rm -f *.s *.s[0-9] *.co *.greg *.lreg *.combine *.flow *.cse *.jump *.rtl *.tree *.loop
+	-rm -f core
+
+# Get rid of every file that's generated from some other file (except INSTALL).
+realclean: clean
+	-rm -f cpp.aux cpp.cps cpp.fns cpp.info cpp.kys cpp.pgs cpp.tps cpp.vrs
+	-rm -f c-parse.tab.c c-parse.output errs gnulib cexp.c TAGS 
+	-rm -f internals internals-* internals.?? internals.??s
+
+# Copy the files into directories where they will be run.
+install: all
+	install cc1 $(libdir)/gcc-cc1
+	install -c -m 755 gnulib $(libdir)/gcc-gnulib
+	if [ -f /usr/bin/ranlib ] ; then  ranlib $(libdir)/gcc-gnulib ;fi
+	install cpp $(libdir)/gcc-cpp
+	install gcc $(bindir)
+	-mkdir $(libdir)/gcc-include
+	cd $(libdir)/gcc-include; rm -f $(USER_H)
+	cp $(USER_H) $(libdir)/gcc-include
 
 # do make -f ../gcc/Makefile maketest DIR=../gcc
 # in the intended test directory to make it a suitable test directory.
@@ -212,7 +363,39 @@ maketest:
 	ln -s $(DIR)/.gdbinit .
 	-ln -s $(DIR)/bison.simple .
 	ln -s $(DIR)/gcc .
+	ln -s $(DIR)/move-if-change .
 	ln -s $(DIR)/Makefile test-Makefile
 	-rm tm.h aux-output.c
 	make -f test-Makefile clean
-# You must create the necessary links tm.h, md and aux-output.c
\ No newline at end of file
+# You must create the necessary links tm.h, md and aux-output.c
+
+# Copy the object files from a particular stage into a subdirectory.
+stage1: force
+	-mkdir stage1
+	mv $(STAGESTUFF) $(STAGE_GCC) stage1
+	-rm stage1/gnulib
+	-ln gnulib stage1 || cp gnulib stage1
+
+stage2: force
+	-mkdir stage2
+	mv $(STAGESTUFF) $(STAGE_GCC) stage2
+	-rm stage2/gnulib
+	-ln gnulib stage2 || cp gnulib stage2
+
+stage3: force
+	-mkdir stage3
+	mv $(STAGESTUFF) $(STAGE_GCC) stage3
+	-rm stage3/gnulib
+	-ln gnulib stage3 || cp gnulib stage3
+
+force:
+
+TAGS: force
+	mkdir temp
+	-mv c-parse.tab.c cexp.c temp
+	etags *.y *.h *.c
+	mv temp/* .
+	rmdir temp
+
+#In GNU Make, ignore whether `stage*' exists.
+.PHONY: stage1 stage2 stage3 clean realclean TAGS