2004-06-09 Paolo Bonzini <bonzini@gnu.org>

	* Makefile.tpl (touch-stage[+id+]): New.
	(restage[+prev+]): Depend on touch-stage[+id+].

	* Makefile.tpl (RECURSE_FLAGS_TO_PASS): New.
	Use it throughout.

	* Makefile.def: Add profile and feedback bootstrap stages.
	Remove next field from bootstrap stages.
	* Makefile.tpl (LN, LN_S): Substitute.
	(stageN-start, stageN-end): Use double-colon rules, to
	provide a hook for additional setup commands.
	(distclean-stageN-gcc, restageN): Create dependencies from
	[+prev+], not from [+next+].
	(stageN-bubble): Add commands for successive stages from
	[+prev+], using double-colon rules.
	(all-stageN-gcc): Fix typo.
	(stagefeedback-start, profiledbootstrap): New.
	* Makefile.in: Regenerate.
	* configure.in: Call ACX_PROG_LN.
	* configure: Regenerate.

config/ChangeLog:
2004-06-09  Paolo Bonzini  <bonzini@gnu.org>

	* acx.m4 (ACX_PROG_LN): From gcc, modified to
	accept a parameter.

8 files changed, 589 insertions, 218 deletions

diff --git a/ChangeLog b/ChangeLog
index f6bcdf8127b..bd23a2382af 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,26 @@
+2004-06-09  Paolo Bonzini  <bonzini@gnu.org>
+
+	* Makefile.tpl (touch-stage[+id+]): New.
+	(restage[+prev+]): Depend on touch-stage[+id+].
+
+	* Makefile.tpl (RECURSE_FLAGS_TO_PASS): New.
+	Use it throughout.
+
+	* Makefile.def: Add profile and feedback bootstrap stages.
+	Remove next field from bootstrap stages.
+	* Makefile.tpl (LN, LN_S): Substitute.
+	(stageN-start, stageN-end): Use double-colon rules, to
+	provide a hook for additional setup commands.
+	(distclean-stageN-gcc, restageN): Create dependencies from
+	[+prev+], not from [+next+].
+	(stageN-bubble): Add commands for successive stages from
+	[+prev+], using double-colon rules.
+	(all-stageN-gcc): Fix typo.
+	(stagefeedback-start, profiledbootstrap): New.
+	* Makefile.in: Regenerate.
+	* configure.in: Call ACX_PROG_LN.
+	* configure: Regenerate.
+
 2004-06-03  Paolo Bonzini  <bonzini@gnu.org>
 
 	* configure.in: Fix --enable-bootstrap breakage introduced in trees
diff --git a/Makefile.def b/Makefile.def
index c14e3273600..b3941381420 100644
--- a/Makefile.def
+++ b/Makefile.def
@@ -216,25 +216,33 @@ flags_to_pass = { flag= WINDRES_FOR_TARGET ; };
 
 // Toplevel bootstrap
 bootstrap_stage = {
-	id=1 ; next=2 ;
+	id=1 ;
 	extra_configure_flags='--disable-intermodule \
 	  --disable-coverage --enable-languages="$(STAGE1_LANGUAGES)"' ;
 	extra_make_flags='CFLAGS="$(STAGE1_CFLAGS)"' ; };
 bootstrap_stage = {
-	id=2 ; prev=1 ; next=3 ;
+	id=2 ; prev=1 ;
 	bootstrap_target=bootstrap2 ;
 	extra_configure_flags="@stage2_werror_flag@" ;
-	extra_make_flags="$(POSTSTAGE1_FLAGS_TO_PASS)" ; };
+	extra_make_flags="" ; };
 bootstrap_stage = {
-	id=3 ; prev=2 ; next=4 ;
+	id=3 ; prev=2 ;
 	compare_target=compare ;
 	bootstrap_target=bootstrap ;
 	cleanstrap_target=cleanstrap ;
 	extra_configure_flags="@stage2_werror_flag@" ;
-	extra_make_flags="$(POSTSTAGE1_FLAGS_TO_PASS)" ; };
+	extra_make_flags="" ; };
 bootstrap_stage = {
 	id=4 ; prev=3 ;
 	compare_target=compare3 ;
 	bootstrap_target=bootstrap4 ;
 	extra_configure_flags="@stage2_werror_flag@" ;
-	extra_make_flags="$(POSTSTAGE1_FLAGS_TO_PASS)" ; };
+	extra_make_flags="" ; };
+bootstrap_stage = {
+	id=profile ; prev=1 ;
+	extra_configure_flags="@stage2_werror_flag@" ;
+	extra_make_flags='CFLAGS="$(BOOT_CFLAGS) -fprofile-generate"' ; };
+bootstrap_stage = {
+	id=feedback ; prev=1 ;
+	extra_configure_flags="@stage2_werror_flag@" ;
+	extra_make_flags='CFLAGS="$(BOOT_CFLAGS) -fprofile-use"' ; };
diff --git a/Makefile.in b/Makefile.in
index db429bccac6..02d9f7ed2e5 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -65,6 +65,8 @@ INSTALL = @INSTALL@
 INSTALL_PROGRAM = @INSTALL_PROGRAM@
 INSTALL_SCRIPT = @INSTALL_SCRIPT@
 INSTALL_DATA = @INSTALL_DATA@
+LN = @LN@
+LN_S = @LN_S@
 
 # -------------------------------------------------
 # Miscellaneous non-standard autoconf-set variables
@@ -552,6 +554,8 @@ RECURSE_FLAGS = \
 	CXX_FOR_TARGET='$(CXX_FOR_TARGET_FOR_RECURSIVE_MAKE)' \
 	RAW_CXX_FOR_TARGET='$(RAW_CXX_FOR_TARGET_FOR_RECURSIVE_MAKE)' \
 
+RECURSE_FLAGS_TO_PASS = $(BASE_FLAGS_TO_PASS) $(RECURSE_FLAGS)
+
 # Flags to pass down to most sub-makes, in which we're building with
 # the host environment.
 EXTRA_HOST_FLAGS = \
@@ -27733,7 +27737,7 @@ $(GCC_STRAP_TARGETS): all-bootstrap configure-gcc
 	s=`cd $(srcdir); ${PWD_COMMAND}` ; export s; \
 	$(SET_LIB_PATH) \
 	echo "Building runtime libraries"; \
-	$(MAKE) $(BASE_FLAGS_TO_PASS) $(RECURSE_FLAGS) all
+	$(MAKE) $(RECURSE_FLAGS_TO_PASS) all
 
 profiledbootstrap: all-bootstrap configure-gcc
 	@r=`${PWD_COMMAND}`; export r; \
@@ -27746,7 +27750,7 @@ profiledbootstrap: all-bootstrap configure-gcc
 	s=`cd $(srcdir); ${PWD_COMMAND}` ; export s; \
 	$(SET_LIB_PATH) \
 	echo "Building runtime libraries and training compiler"; \
-	$(MAKE) $(BASE_FLAGS_TO_PASS) $(RECURSE_FLAGS) all
+	$(MAKE) $(RECURSE_FLAGS_TO_PASS) all
 	@r=`${PWD_COMMAND}`; export r; \
 	s=`cd $(srcdir); ${PWD_COMMAND}`; export s; \
 	$(SET_LIB_PATH) \
@@ -27766,8 +27770,7 @@ cross: all-texinfo all-bison all-byacc all-binutils all-gas all-ld
 	s=`cd $(srcdir); ${PWD_COMMAND}` ; export s; \
 	$(SET_LIB_PATH) \
 	echo "Building runtime libraries"; \
-	$(MAKE) $(BASE_FLAGS_TO_PASS) $(RECURSE_FLAGS) \
-		LANGUAGES="c c++" all
+	$(MAKE) $(RECURSE_FLAGS_TO_PASS) LANGUAGES="c c++" all
 @endif gcc-no-bootstrap
 
 .PHONY: check-gcc maybe-check-gcc
@@ -28110,12 +28113,14 @@ objext = .o
 # Real targets act phony if they depend on phony targets; this hack
 # prevents gratuitous rebuilding of stage 1.
 prebootstrap:
-	$(MAKE) $(BASE_FLAGS_TO_PASS) $(RECURSE_FLAGS) all-bootstrap
+	$(MAKE) $(RECURSE_FLAGS_TO_PASS) all-bootstrap
 	$(STAMP) prebootstrap
 
 # Flags to pass to stage2 and later makes.
 BOOT_CFLAGS= -g -O2
 POSTSTAGE1_FLAGS_TO_PASS = \
+	CC="$${CC}" CC_FOR_BUILD="$${CC_FOR_BUILD}" \
+	STAGE_PREFIX=$$r/stage-gcc/ \
 	CFLAGS="$(BOOT_CFLAGS)" \
 	ADAC="\$$(CC)"
 
@@ -28131,13 +28136,13 @@ POSTSTAGE1_FLAGS_TO_PASS = \
 
 .PHONY: stage1-start stage1-end
 
-stage1-start:
+stage1-start::
 	[ -f stage_last ] && $(MAKE) `cat stage_last`-end || :
 	echo stage1 > stage_last ; \
 	[ -d stage1-gcc ] || mkdir stage1-gcc; \
 	set stage1-gcc gcc ; @CREATE_LINK_TO_DIR@ 
 
-stage1-end:
+stage1-end::
 	rm -f stage_last ; \
 	set gcc stage1-gcc ; @UNDO_LINK_TO_DIR@ 
 
@@ -28145,18 +28150,14 @@ stage1-end:
 # are remade, but not reconfigured.  The next stage (if any) will not
 # be reconfigured as well.
 .PHONY: stage1-bubble
-stage1-bubble: 
+stage1-bubble:: 
 	@if [ -f all-stage1-gcc ] ; then \
 	  echo Remaking stage 1 ; \
 	  rm -f all-stage1-gcc ; \
-	  $(MAKE) $(BASE_FLAGS_TO_PASS) $(RECURSE_FLAGS) \
-	    all-stage1-gcc  && \
-	  if [ -f configure-stage2-gcc ] ; then \
-	    $(STAMP) configure-stage2-gcc ; \
-	  fi ; \
-	else \
-	  $(MAKE) $(BASE_FLAGS_TO_PASS) $(RECURSE_FLAGS) all-stage1-gcc ; \
-	fi
+	fi ; \
+	$(MAKE) $(RECURSE_FLAGS_TO_PASS) all-stage1-gcc
+
+
 
 configure-stage1-gcc:  prebootstrap 
 	$(MAKE) stage1-start
@@ -28200,29 +28201,44 @@ all-stage1-gcc: configure-stage1-gcc
 
 
 
-.PHONY: restage1 distclean-stage1
+.PHONY: restage1 touch-stage1 distclean-stage1
+
+# Rules to wipe a stage and all the following ones, used for cleanstrap
 
-distclean-stage1:  distclean-stage2 
+distclean-stage1::
 	[ -f stage_last ] && $(MAKE) `cat stage_last`-end || :
 	rm -rf configure-stage1-gcc all-stage1-gcc stage1-gcc 
 
-restage1:  distclean-stage2 
+# Rules to renew the timestamp on a stage and all the following ones
+
+touch-stage1::
+	@[ -f configure-stage1-gcc ] && \
+	  echo '$(STAMP) configure-stage1-gcc' && \
+	  $(STAMP) configure-stage1-gcc; \
+	[ -f all-stage1-gcc ] && \
+	  echo '$(STAMP) all-stage1-gcc' && \
+	  $(STAMP) all-stage1-gcc; \
+	:
+
+# After building a stage, touch the following ones
+
+restage1::
 	rm -rf all-stage1-gcc 
-	$(MAKE) $(BASE_FLAGS_TO_PASS) $(RECURSE_FLAGS)  all-stage1-gcc 
+	$(MAKE) $(RECURSE_FLAGS_TO_PASS)  all-stage1-gcc 
 
 
 
 
 .PHONY: stage2-start stage2-end
 
-stage2-start:
+stage2-start::
 	[ -f stage_last ] && $(MAKE) `cat stage_last`-end || :
 	echo stage2 > stage_last ; \
 	[ -d stage2-gcc ] || mkdir stage2-gcc; \
 	set stage2-gcc gcc ; @CREATE_LINK_TO_DIR@  ; \
 	set stage1-gcc prev-gcc ; @CREATE_LINK_TO_DIR@ 
 
-stage2-end:
+stage2-end::
 	rm -f stage_last ; \
 	set gcc stage2-gcc ; @UNDO_LINK_TO_DIR@  ; \
 	set prev-gcc stage1-gcc ; @UNDO_LINK_TO_DIR@ 
@@ -28231,19 +28247,20 @@ stage2-end:
 # are remade, but not reconfigured.  The next stage (if any) will not
 # be reconfigured as well.
 .PHONY: stage2-bubble
-stage2-bubble: stage1-bubble
+stage2-bubble:: stage1-bubble
 	@if [ -f all-stage2-gcc ] ; then \
 	  echo Remaking stage 2 ; \
 	  rm -f all-stage2-gcc ; \
-	  $(MAKE) $(BASE_FLAGS_TO_PASS) $(RECURSE_FLAGS) \
-	    all-stage2-gcc  && \
-	  if [ -f configure-stage3-gcc ] ; then \
-	    $(STAMP) configure-stage3-gcc ; \
-	  fi ; \
-	else \
-	  $(MAKE) $(BASE_FLAGS_TO_PASS) $(RECURSE_FLAGS) all-stage2-gcc ; \
+	fi ; \
+	$(MAKE) $(RECURSE_FLAGS_TO_PASS) all-stage2-gcc
+
+
+stage1-bubble::
+	@if [ -f configure-stage2-gcc ] ; then \
+	  $(STAMP) configure-stage2-gcc ; \
 	fi
 
+
 configure-stage2-gcc:  all-stage1-gcc 
 	$(MAKE) stage2-start
 	@if [ -f stage2-gcc/Makefile ] ; then \
@@ -28280,42 +28297,56 @@ all-stage2-gcc: configure-stage2-gcc
 	$(STAGE_HOST_EXPORTS)  \
 	cd gcc && \
 	$(MAKE) $(GCC_FLAGS_TO_PASS)  \
-		CC="$${CC}" CC_FOR_BUILD="$${CC_FOR_BUILD}" \
-		STAGE_PREFIX=$$r/stage1-gcc/  \
-		$(POSTSTAGE1_FLAGS_TO_PASS) && $(STAMP) ../all-stage2-gcc
+		$(POSTSTAGE1_FLAGS_TO_PASS)  \
+		 && $(STAMP) ../all-stage2-gcc
 
 
 
 
 .PHONY: bootstrap2
 bootstrap2:
-	$(MAKE) $(BASE_FLAGS_TO_PASS) $(RECURSE_FLAGS) stage2-bubble  \
+	$(MAKE) $(RECURSE_FLAGS_TO_PASS) stage2-bubble  \
 	  stage2-start all stage2-end 
 
 
-.PHONY: restage2 distclean-stage2
+.PHONY: restage2 touch-stage2 distclean-stage2
 
-distclean-stage2:  distclean-stage3 
+# Rules to wipe a stage and all the following ones, used for cleanstrap
+distclean-stage1:: distclean-stage2 
+distclean-stage2::
 	[ -f stage_last ] && $(MAKE) `cat stage_last`-end || :
 	rm -rf configure-stage2-gcc all-stage2-gcc stage2-gcc 
 
-restage2:  distclean-stage3 
+# Rules to renew the timestamp on a stage and all the following ones
+touch-stage1:: touch-stage2 
+touch-stage2::
+	@[ -f configure-stage2-gcc ] && \
+	  echo '$(STAMP) configure-stage2-gcc' && \
+	  $(STAMP) configure-stage2-gcc; \
+	[ -f all-stage2-gcc ] && \
+	  echo '$(STAMP) all-stage2-gcc' && \
+	  $(STAMP) all-stage2-gcc; \
+	:
+
+# After building a stage, touch the following ones
+restage1:: touch-stage2 
+restage2::
 	rm -rf all-stage2-gcc 
-	$(MAKE) $(BASE_FLAGS_TO_PASS) $(RECURSE_FLAGS)  all-stage2-gcc 
+	$(MAKE) $(RECURSE_FLAGS_TO_PASS)  all-stage2-gcc 
 
 
 
 
 .PHONY: stage3-start stage3-end
 
-stage3-start:
+stage3-start::
 	[ -f stage_last ] && $(MAKE) `cat stage_last`-end || :
 	echo stage3 > stage_last ; \
 	[ -d stage3-gcc ] || mkdir stage3-gcc; \
 	set stage3-gcc gcc ; @CREATE_LINK_TO_DIR@  ; \
 	set stage2-gcc prev-gcc ; @CREATE_LINK_TO_DIR@ 
 
-stage3-end:
+stage3-end::
 	rm -f stage_last ; \
 	set gcc stage3-gcc ; @UNDO_LINK_TO_DIR@  ; \
 	set prev-gcc stage2-gcc ; @UNDO_LINK_TO_DIR@ 
@@ -28324,19 +28355,20 @@ stage3-end:
 # are remade, but not reconfigured.  The next stage (if any) will not
 # be reconfigured as well.
 .PHONY: stage3-bubble
-stage3-bubble: stage2-bubble
+stage3-bubble:: stage2-bubble
 	@if [ -f all-stage3-gcc ] ; then \
 	  echo Remaking stage 3 ; \
 	  rm -f all-stage3-gcc ; \
-	  $(MAKE) $(BASE_FLAGS_TO_PASS) $(RECURSE_FLAGS) \
-	    all-stage3-gcc  && \
-	  if [ -f configure-stage4-gcc ] ; then \
-	    $(STAMP) configure-stage4-gcc ; \
-	  fi ; \
-	else \
-	  $(MAKE) $(BASE_FLAGS_TO_PASS) $(RECURSE_FLAGS) all-stage3-gcc ; \
+	fi ; \
+	$(MAKE) $(RECURSE_FLAGS_TO_PASS) all-stage3-gcc
+
+
+stage2-bubble::
+	@if [ -f configure-stage3-gcc ] ; then \
+	  $(STAMP) configure-stage3-gcc ; \
 	fi
 
+
 configure-stage3-gcc:  all-stage2-gcc 
 	$(MAKE) stage3-start
 	@if [ -f stage3-gcc/Makefile ] ; then \
@@ -28373,9 +28405,8 @@ all-stage3-gcc: configure-stage3-gcc
 	$(STAGE_HOST_EXPORTS)  \
 	cd gcc && \
 	$(MAKE) $(GCC_FLAGS_TO_PASS)  \
-		CC="$${CC}" CC_FOR_BUILD="$${CC_FOR_BUILD}" \
-		STAGE_PREFIX=$$r/stage2-gcc/  \
-		$(POSTSTAGE1_FLAGS_TO_PASS) && $(STAMP) ../all-stage3-gcc
+		$(POSTSTAGE1_FLAGS_TO_PASS)  \
+		 && $(STAMP) ../all-stage3-gcc
 
 
 compare: all-stage3-gcc
@@ -28404,19 +28435,34 @@ compare: all-stage3-gcc
 
 .PHONY: bootstrap
 bootstrap:
-	$(MAKE) $(BASE_FLAGS_TO_PASS) $(RECURSE_FLAGS) stage3-bubble  compare  \
+	$(MAKE) $(RECURSE_FLAGS_TO_PASS) stage3-bubble  compare  \
 	  stage3-start all stage3-end 
 
 
-.PHONY: restage3 distclean-stage3
+.PHONY: restage3 touch-stage3 distclean-stage3
 
-distclean-stage3:  distclean-stage4 
+# Rules to wipe a stage and all the following ones, used for cleanstrap
+distclean-stage2:: distclean-stage3 
+distclean-stage3::
 	[ -f stage_last ] && $(MAKE) `cat stage_last`-end || :
 	rm -rf configure-stage3-gcc all-stage3-gcc stage3-gcc compare 
 
-restage3:  distclean-stage4 
+# Rules to renew the timestamp on a stage and all the following ones
+touch-stage2:: touch-stage3 
+touch-stage3::
+	@[ -f configure-stage3-gcc ] && \
+	  echo '$(STAMP) configure-stage3-gcc' && \
+	  $(STAMP) configure-stage3-gcc; \
+	[ -f all-stage3-gcc ] && \
+	  echo '$(STAMP) all-stage3-gcc' && \
+	  $(STAMP) all-stage3-gcc; \
+	:
+
+# After building a stage, touch the following ones
+restage2:: touch-stage3 
+restage3::
 	rm -rf all-stage3-gcc compare 
-	$(MAKE) $(BASE_FLAGS_TO_PASS) $(RECURSE_FLAGS) compare 
+	$(MAKE) $(RECURSE_FLAGS_TO_PASS) compare 
 
 
 .PHONY: cleanstrap
@@ -28426,14 +28472,14 @@ cleanstrap: distclean-stage1 bootstrap
 
 .PHONY: stage4-start stage4-end
 
-stage4-start:
+stage4-start::
 	[ -f stage_last ] && $(MAKE) `cat stage_last`-end || :
 	echo stage4 > stage_last ; \
 	[ -d stage4-gcc ] || mkdir stage4-gcc; \
 	set stage4-gcc gcc ; @CREATE_LINK_TO_DIR@  ; \
 	set stage3-gcc prev-gcc ; @CREATE_LINK_TO_DIR@ 
 
-stage4-end:
+stage4-end::
 	rm -f stage_last ; \
 	set gcc stage4-gcc ; @UNDO_LINK_TO_DIR@  ; \
 	set prev-gcc stage3-gcc ; @UNDO_LINK_TO_DIR@ 
@@ -28442,16 +28488,20 @@ stage4-end:
 # are remade, but not reconfigured.  The next stage (if any) will not
 # be reconfigured as well.
 .PHONY: stage4-bubble
-stage4-bubble: stage3-bubble
+stage4-bubble:: stage3-bubble
 	@if [ -f all-stage4-gcc ] ; then \
 	  echo Remaking stage 4 ; \
 	  rm -f all-stage4-gcc ; \
-	  $(MAKE) $(BASE_FLAGS_TO_PASS) $(RECURSE_FLAGS) \
-	    all-stage4-gcc ; \
-	else \
-	  $(MAKE) $(BASE_FLAGS_TO_PASS) $(RECURSE_FLAGS) all-stage4-gcc ; \
+	fi ; \
+	$(MAKE) $(RECURSE_FLAGS_TO_PASS) all-stage4-gcc
+
+
+stage3-bubble::
+	@if [ -f configure-stage4-gcc ] ; then \
+	  $(STAMP) configure-stage4-gcc ; \
 	fi
 
+
 configure-stage4-gcc:  all-stage3-gcc 
 	$(MAKE) stage4-start
 	@if [ -f stage4-gcc/Makefile ] ; then \
@@ -28488,9 +28538,8 @@ all-stage4-gcc: configure-stage4-gcc
 	$(STAGE_HOST_EXPORTS)  \
 	cd gcc && \
 	$(MAKE) $(GCC_FLAGS_TO_PASS)  \
-		CC="$${CC}" CC_FOR_BUILD="$${CC_FOR_BUILD}" \
-		STAGE_PREFIX=$$r/stage3-gcc/  \
-		$(POSTSTAGE1_FLAGS_TO_PASS) && $(STAMP) ../all-stage4-gcc
+		$(POSTSTAGE1_FLAGS_TO_PASS)  \
+		 && $(STAMP) ../all-stage4-gcc
 
 
 compare3: all-stage4-gcc
@@ -28519,22 +28568,270 @@ compare3: all-stage4-gcc
 
 .PHONY: bootstrap4
 bootstrap4:
-	$(MAKE) $(BASE_FLAGS_TO_PASS) $(RECURSE_FLAGS) stage4-bubble  compare3  \
+	$(MAKE) $(RECURSE_FLAGS_TO_PASS) stage4-bubble  compare3  \
 	  stage4-start all stage4-end 
 
 
-.PHONY: restage4 distclean-stage4
+.PHONY: restage4 touch-stage4 distclean-stage4
 
-distclean-stage4: 
+# Rules to wipe a stage and all the following ones, used for cleanstrap
+distclean-stage3:: distclean-stage4 
+distclean-stage4::
 	[ -f stage_last ] && $(MAKE) `cat stage_last`-end || :
 	rm -rf configure-stage4-gcc all-stage4-gcc stage4-gcc compare3 
 
-restage4: 
+# Rules to renew the timestamp on a stage and all the following ones
+touch-stage3:: touch-stage4 
+touch-stage4::
+	@[ -f configure-stage4-gcc ] && \
+	  echo '$(STAMP) configure-stage4-gcc' && \
+	  $(STAMP) configure-stage4-gcc; \
+	[ -f all-stage4-gcc ] && \
+	  echo '$(STAMP) all-stage4-gcc' && \
+	  $(STAMP) all-stage4-gcc; \
+	:
+
+# After building a stage, touch the following ones
+restage3:: touch-stage4 
+restage4::
 	rm -rf all-stage4-gcc compare3 
-	$(MAKE) $(BASE_FLAGS_TO_PASS) $(RECURSE_FLAGS) compare3 
+	$(MAKE) $(RECURSE_FLAGS_TO_PASS) compare3 
+
+
+
+
+.PHONY: stageprofile-start stageprofile-end
+
+stageprofile-start::
+	[ -f stage_last ] && $(MAKE) `cat stage_last`-end || :
+	echo stageprofile > stage_last ; \
+	[ -d stageprofile-gcc ] || mkdir stageprofile-gcc; \
+	set stageprofile-gcc gcc ; @CREATE_LINK_TO_DIR@  ; \
+	set stage1-gcc prev-gcc ; @CREATE_LINK_TO_DIR@ 
+
+stageprofile-end::
+	rm -f stage_last ; \
+	set gcc stageprofile-gcc ; @UNDO_LINK_TO_DIR@  ; \
+	set prev-gcc stage1-gcc ; @UNDO_LINK_TO_DIR@ 
+
+# Bubble a bugfix through all the stages up to stage profile.  They
+# are remade, but not reconfigured.  The next stage (if any) will not
+# be reconfigured as well.
+.PHONY: stageprofile-bubble
+stageprofile-bubble:: stage1-bubble
+	@if [ -f all-stageprofile-gcc ] ; then \
+	  echo Remaking stage profile ; \
+	  rm -f all-stageprofile-gcc ; \
+	fi ; \
+	$(MAKE) $(RECURSE_FLAGS_TO_PASS) all-stageprofile-gcc
+
+
+stage1-bubble::
+	@if [ -f configure-stageprofile-gcc ] ; then \
+	  $(STAMP) configure-stageprofile-gcc ; \
+	fi
 
 
+configure-stageprofile-gcc:  all-stage1-gcc 
+	$(MAKE) stageprofile-start
+	@if [ -f stageprofile-gcc/Makefile ] ; then \
+	  $(STAMP) configure-stageprofile-gcc ; \
+	  exit 0; \
+	else \
+	  true ; \
+	fi ; \
+	r=`${PWD_COMMAND}`; export r; \
+	s=`cd $(srcdir); ${PWD_COMMAND}`; export s;  \
+	$(STAGE_HOST_EXPORTS)  \
+	echo Configuring stage profile in gcc ; \
+	cd gcc || exit 1; \
+	case $(srcdir) in \
+	  \.) \
+	    srcdiroption="--srcdir=."; \
+	    libsrcdir=".";; \
+	  /* | [A-Za-z]:[\\/]*) \
+	    srcdiroption="--srcdir=$(srcdir)/gcc"; \
+	    libsrcdir="$$s/gcc";; \
+	  *) \
+	    srcdiroption="--srcdir=../$(srcdir)/gcc"; \
+	    libsrcdir="$$s/gcc";; \
+	esac; \
+	$(SHELL) $${libsrcdir}/configure \
+	  $(HOST_CONFIGARGS) $${srcdiroption} \
+	  @stage2_werror_flag@ && \
+	  $(STAMP) ../configure-stageprofile-gcc
+
+all-stageprofile-gcc: configure-stageprofile-gcc
+	$(MAKE) stageprofile-start
+	@r=`${PWD_COMMAND}`; export r; \
+	s=`cd $(srcdir); ${PWD_COMMAND}`; export s;  \
+	$(STAGE_HOST_EXPORTS)  \
+	cd gcc && \
+	$(MAKE) $(GCC_FLAGS_TO_PASS)  \
+		$(POSTSTAGE1_FLAGS_TO_PASS)  \
+		CFLAGS="$(BOOT_CFLAGS) -fprofile-generate" && $(STAMP) ../all-stageprofile-gcc
+
+
+
+
+
+.PHONY: restageprofile touch-stageprofile distclean-stageprofile
+
+# Rules to wipe a stage and all the following ones, used for cleanstrap
+distclean-stage1:: distclean-stageprofile 
+distclean-stageprofile::
+	[ -f stage_last ] && $(MAKE) `cat stage_last`-end || :
+	rm -rf configure-stageprofile-gcc all-stageprofile-gcc stageprofile-gcc 
 
+# Rules to renew the timestamp on a stage and all the following ones
+touch-stage1:: touch-stageprofile 
+touch-stageprofile::
+	@[ -f configure-stageprofile-gcc ] && \
+	  echo '$(STAMP) configure-stageprofile-gcc' && \
+	  $(STAMP) configure-stageprofile-gcc; \
+	[ -f all-stageprofile-gcc ] && \
+	  echo '$(STAMP) all-stageprofile-gcc' && \
+	  $(STAMP) all-stageprofile-gcc; \
+	:
+
+# After building a stage, touch the following ones
+restage1:: touch-stageprofile 
+restageprofile::
+	rm -rf all-stageprofile-gcc 
+	$(MAKE) $(RECURSE_FLAGS_TO_PASS)  all-stageprofile-gcc 
+
+
+
+
+.PHONY: stagefeedback-start stagefeedback-end
+
+stagefeedback-start::
+	[ -f stage_last ] && $(MAKE) `cat stage_last`-end || :
+	echo stagefeedback > stage_last ; \
+	[ -d stagefeedback-gcc ] || mkdir stagefeedback-gcc; \
+	set stagefeedback-gcc gcc ; @CREATE_LINK_TO_DIR@  ; \
+	set stage1-gcc prev-gcc ; @CREATE_LINK_TO_DIR@ 
+
+stagefeedback-end::
+	rm -f stage_last ; \
+	set gcc stagefeedback-gcc ; @UNDO_LINK_TO_DIR@  ; \
+	set prev-gcc stage1-gcc ; @UNDO_LINK_TO_DIR@ 
+
+# Bubble a bugfix through all the stages up to stage feedback.  They
+# are remade, but not reconfigured.  The next stage (if any) will not
+# be reconfigured as well.
+.PHONY: stagefeedback-bubble
+stagefeedback-bubble:: stage1-bubble
+	@if [ -f all-stagefeedback-gcc ] ; then \
+	  echo Remaking stage feedback ; \
+	  rm -f all-stagefeedback-gcc ; \
+	fi ; \
+	$(MAKE) $(RECURSE_FLAGS_TO_PASS) all-stagefeedback-gcc
+
+
+stage1-bubble::
+	@if [ -f configure-stagefeedback-gcc ] ; then \
+	  $(STAMP) configure-stagefeedback-gcc ; \
+	fi
+
+
+configure-stagefeedback-gcc:  all-stage1-gcc 
+	$(MAKE) stagefeedback-start
+	@if [ -f stagefeedback-gcc/Makefile ] ; then \
+	  $(STAMP) configure-stagefeedback-gcc ; \
+	  exit 0; \
+	else \
+	  true ; \
+	fi ; \
+	r=`${PWD_COMMAND}`; export r; \
+	s=`cd $(srcdir); ${PWD_COMMAND}`; export s;  \
+	$(STAGE_HOST_EXPORTS)  \
+	echo Configuring stage feedback in gcc ; \
+	cd gcc || exit 1; \
+	case $(srcdir) in \
+	  \.) \
+	    srcdiroption="--srcdir=."; \
+	    libsrcdir=".";; \
+	  /* | [A-Za-z]:[\\/]*) \
+	    srcdiroption="--srcdir=$(srcdir)/gcc"; \
+	    libsrcdir="$$s/gcc";; \
+	  *) \
+	    srcdiroption="--srcdir=../$(srcdir)/gcc"; \
+	    libsrcdir="$$s/gcc";; \
+	esac; \
+	$(SHELL) $${libsrcdir}/configure \
+	  $(HOST_CONFIGARGS) $${srcdiroption} \
+	  @stage2_werror_flag@ && \
+	  $(STAMP) ../configure-stagefeedback-gcc
+
+all-stagefeedback-gcc: configure-stagefeedback-gcc
+	$(MAKE) stagefeedback-start
+	@r=`${PWD_COMMAND}`; export r; \
+	s=`cd $(srcdir); ${PWD_COMMAND}`; export s;  \
+	$(STAGE_HOST_EXPORTS)  \
+	cd gcc && \
+	$(MAKE) $(GCC_FLAGS_TO_PASS)  \
+		$(POSTSTAGE1_FLAGS_TO_PASS)  \
+		CFLAGS="$(BOOT_CFLAGS) -fprofile-use" && $(STAMP) ../all-stagefeedback-gcc
+
+
+
+
+
+.PHONY: restagefeedback touch-stagefeedback distclean-stagefeedback
+
+# Rules to wipe a stage and all the following ones, used for cleanstrap
+distclean-stage1:: distclean-stagefeedback 
+distclean-stagefeedback::
+	[ -f stage_last ] && $(MAKE) `cat stage_last`-end || :
+	rm -rf configure-stagefeedback-gcc all-stagefeedback-gcc stagefeedback-gcc 
+
+# Rules to renew the timestamp on a stage and all the following ones
+touch-stage1:: touch-stagefeedback 
+touch-stagefeedback::
+	@[ -f configure-stagefeedback-gcc ] && \
+	  echo '$(STAMP) configure-stagefeedback-gcc' && \
+	  $(STAMP) configure-stagefeedback-gcc; \
+	[ -f all-stagefeedback-gcc ] && \
+	  echo '$(STAMP) all-stagefeedback-gcc' && \
+	  $(STAMP) all-stagefeedback-gcc; \
+	:
+
+# After building a stage, touch the following ones
+restage1:: touch-stagefeedback 
+restagefeedback::
+	rm -rf all-stagefeedback-gcc 
+	$(MAKE) $(RECURSE_FLAGS_TO_PASS)  all-stagefeedback-gcc 
+
+
+
+
+
+stagefeedback-start::
+	@r=`${PWD_COMMAND}`; export r; \
+	s=`cd $(srcdir); ${PWD_COMMAND}`; export s; \
+	cd stageprofile-gcc && \
+	  { find . -type d | sort | sed 's,.*,$(SHELL) '"$$s"'/mkinstalldirs "../gcc/&",' | $(SHELL); } && \
+	  { find . -name '*.*da' | sed 's,.*,$(LN) -f "&" "../gcc/&",' | $(SHELL); }
+
+profiledbootstrap: all-bootstrap configure-gcc
+	@r=`${PWD_COMMAND}`; export r; \
+	s=`cd $(srcdir); ${PWD_COMMAND}`; export s; \
+	$(SET_LIB_PATH) \
+	$(GCC_HOST_EXPORTS) \
+	echo "Bootstrapping the compiler"; \
+	$(MAKE) stageprofile-bubble distclean-stagefeedback stageprofile-start
+	@r=`${PWD_COMMAND}`; export r; \
+	s=`cd $(srcdir); ${PWD_COMMAND}` ; export s; \
+	$(SET_LIB_PATH) \
+	echo "Building runtime libraries and training compiler"; \
+	$(MAKE) $(BASE_FLAGS_TO_PASS) $(RECURSE_FLAGS) all
+	@r=`${PWD_COMMAND}`; export r; \
+	s=`cd $(srcdir); ${PWD_COMMAND}`; export s; \
+	$(SET_LIB_PATH) \
+	$(GCC_HOST_EXPORTS) \
+	echo "Building feedback based compiler"; \
+	$(MAKE) stagefeedback-bubble stagefeedback-end
 
 @endif gcc-bootstrap
 
diff --git a/Makefile.tpl b/Makefile.tpl
index 6ffecc82222..ac15895db12 100644
--- a/Makefile.tpl
+++ b/Makefile.tpl
@@ -68,6 +68,8 @@ INSTALL = @INSTALL@
 INSTALL_PROGRAM = @INSTALL_PROGRAM@
 INSTALL_SCRIPT = @INSTALL_SCRIPT@
 INSTALL_DATA = @INSTALL_DATA@
+LN = @LN@
+LN_S = @LN_S@
 
 # -------------------------------------------------
 # Miscellaneous non-standard autoconf-set variables
@@ -494,6 +496,8 @@ RECURSE_FLAGS = \
 	CXX_FOR_TARGET='$(CXX_FOR_TARGET_FOR_RECURSIVE_MAKE)' \
 	RAW_CXX_FOR_TARGET='$(RAW_CXX_FOR_TARGET_FOR_RECURSIVE_MAKE)' \
 
+RECURSE_FLAGS_TO_PASS = $(BASE_FLAGS_TO_PASS) $(RECURSE_FLAGS)
+
 # Flags to pass down to most sub-makes, in which we're building with
 # the host environment.
 EXTRA_HOST_FLAGS = \
@@ -1258,7 +1262,7 @@ $(GCC_STRAP_TARGETS): all-bootstrap configure-gcc
 	s=`cd $(srcdir); ${PWD_COMMAND}` ; export s; \
 	$(SET_LIB_PATH) \
 	echo "Building runtime libraries"; \
-	$(MAKE) $(BASE_FLAGS_TO_PASS) $(RECURSE_FLAGS) all
+	$(MAKE) $(RECURSE_FLAGS_TO_PASS) all
 
 profiledbootstrap: all-bootstrap configure-gcc
 	@r=`${PWD_COMMAND}`; export r; \
@@ -1271,7 +1275,7 @@ profiledbootstrap: all-bootstrap configure-gcc
 	s=`cd $(srcdir); ${PWD_COMMAND}` ; export s; \
 	$(SET_LIB_PATH) \
 	echo "Building runtime libraries and training compiler"; \
-	$(MAKE) $(BASE_FLAGS_TO_PASS) $(RECURSE_FLAGS) all
+	$(MAKE) $(RECURSE_FLAGS_TO_PASS) all
 	@r=`${PWD_COMMAND}`; export r; \
 	s=`cd $(srcdir); ${PWD_COMMAND}`; export s; \
 	$(SET_LIB_PATH) \
@@ -1291,8 +1295,7 @@ cross: all-texinfo all-bison all-byacc all-binutils all-gas all-ld
 	s=`cd $(srcdir); ${PWD_COMMAND}` ; export s; \
 	$(SET_LIB_PATH) \
 	echo "Building runtime libraries"; \
-	$(MAKE) $(BASE_FLAGS_TO_PASS) $(RECURSE_FLAGS) \
-		LANGUAGES="c c++" all
+	$(MAKE) $(RECURSE_FLAGS_TO_PASS) LANGUAGES="c c++" all
 @endif gcc-no-bootstrap
 
 .PHONY: check-gcc maybe-check-gcc
@@ -1440,12 +1443,14 @@ objext = .o
 # Real targets act phony if they depend on phony targets; this hack
 # prevents gratuitous rebuilding of stage 1.
 prebootstrap:
-	$(MAKE) $(BASE_FLAGS_TO_PASS) $(RECURSE_FLAGS) all-bootstrap
+	$(MAKE) $(RECURSE_FLAGS_TO_PASS) all-bootstrap
 	$(STAMP) prebootstrap
 
 # Flags to pass to stage2 and later makes.
 BOOT_CFLAGS= -g -O2
 POSTSTAGE1_FLAGS_TO_PASS = \
+	CC="$${CC}" CC_FOR_BUILD="$${CC_FOR_BUILD}" \
+	STAGE_PREFIX=$$r/stage[+prev+]-gcc/ \
 	CFLAGS="$(BOOT_CFLAGS)" \
 	ADAC="\$$(CC)"
 
@@ -1461,14 +1466,14 @@ POSTSTAGE1_FLAGS_TO_PASS = \
 [+ FOR bootstrap-stage +]
 .PHONY: stage[+id+]-start stage[+id+]-end
 
-stage[+id+]-start:
+stage[+id+]-start::
 	[ -f stage_last ] && $(MAKE) `cat stage_last`-end || :
 	echo stage[+id+] > stage_last ; \
 	[ -d stage[+id+]-gcc ] || mkdir stage[+id+]-gcc; \
 	set stage[+id+]-gcc gcc ; @CREATE_LINK_TO_DIR@ [+ IF prev +] ; \
 	set stage[+prev+]-gcc prev-gcc ; @CREATE_LINK_TO_DIR@ [+ ENDIF prev +]
 
-stage[+id+]-end:
+stage[+id+]-end::
 	rm -f stage_last ; \
 	set gcc stage[+id+]-gcc ; @UNDO_LINK_TO_DIR@ [+ IF prev +] ; \
 	set prev-gcc stage[+prev+]-gcc ; @UNDO_LINK_TO_DIR@ [+ ENDIF prev +]
@@ -1477,18 +1482,19 @@ stage[+id+]-end:
 # are remade, but not reconfigured.  The next stage (if any) will not
 # be reconfigured as well.
 .PHONY: stage[+id+]-bubble
-stage[+id+]-bubble: [+ IF prev +]stage[+prev+]-bubble[+ ENDIF +]
+stage[+id+]-bubble:: [+ IF prev +]stage[+prev+]-bubble[+ ENDIF +]
 	@if [ -f all-stage[+id+]-gcc ] ; then \
 	  echo Remaking stage [+id+] ; \
 	  rm -f all-stage[+id+]-gcc ; \
-	  $(MAKE) $(BASE_FLAGS_TO_PASS) $(RECURSE_FLAGS) \
-	    all-stage[+id+]-gcc [+ IF next +] && \
-	  if [ -f configure-stage[+next+]-gcc ] ; then \
-	    $(STAMP) configure-stage[+next+]-gcc ; \
-	  fi [+ ENDIF next +]; \
-	else \
-	  $(MAKE) $(BASE_FLAGS_TO_PASS) $(RECURSE_FLAGS) all-stage[+id+]-gcc ; \
+	fi ; \
+	$(MAKE) $(RECURSE_FLAGS_TO_PASS) all-stage[+id+]-gcc
+
+[+ IF prev +]
+stage[+prev+]-bubble::
+	@if [ -f configure-stage[+id+]-gcc ] ; then \
+	  $(STAMP) configure-stage[+id+]-gcc ; \
 	fi
+[+ ENDIF prev +]
 
 configure-stage[+id+]-gcc: [+ IF prev +] all-stage[+prev+]-gcc [+
 	  ELSE +] prebootstrap [+ ENDIF prev +]
@@ -1529,8 +1535,7 @@ all-stage[+id+]-gcc: configure-stage[+id+]-gcc
 	$(GCC_HOST_EXPORTS) [+ ENDIF prev +] \
 	cd gcc && \
 	$(MAKE) $(GCC_FLAGS_TO_PASS) [+ IF prev +] \
-		CC="$${CC}" CC_FOR_BUILD="$${CC_FOR_BUILD}" \
-		STAGE_PREFIX=$$r/stage[+prev+]-gcc/ [+ ENDIF prev +] \
+		$(POSTSTAGE1_FLAGS_TO_PASS) [+ ENDIF prev +] \
 		[+extra_make_flags+] && $(STAMP) ../all-stage[+id+]-gcc
 
 [+ IF compare-target +]
@@ -1560,23 +1565,38 @@ all-stage[+id+]-gcc: configure-stage[+id+]-gcc
 [+ IF bootstrap-target +]
 .PHONY: [+bootstrap-target+]
 [+bootstrap-target+]:
-	$(MAKE) $(BASE_FLAGS_TO_PASS) $(RECURSE_FLAGS) stage[+id+]-bubble [+
+	$(MAKE) $(RECURSE_FLAGS_TO_PASS) stage[+id+]-bubble [+
 	  IF compare-target +] [+compare-target+] [+
 	  ENDIF compare-target +] \
 	  stage[+id+]-start all stage[+id+]-end 
 [+ ENDIF bootstrap-target +]
 
-.PHONY: restage[+id+] distclean-stage[+id+]
+.PHONY: restage[+id+] touch-stage[+id+] distclean-stage[+id+]
 
-distclean-stage[+id+]: [+ IF next +] distclean-stage[+next+] [+ ENDIF next +]
+# Rules to wipe a stage and all the following ones, used for cleanstrap
+[+ IF prev +]distclean-stage[+prev+]:: distclean-stage[+id+] [+ ENDIF prev +]
+distclean-stage[+id+]::
 	[ -f stage_last ] && $(MAKE) `cat stage_last`-end || :
 	rm -rf configure-stage[+id+]-gcc all-stage[+id+]-gcc stage[+id+]-gcc [+
 	  IF compare-target +][+compare-target+] [+ ENDIF compare-target +]
 
-restage[+id+]: [+ IF next +] distclean-stage[+next+] [+ ENDIF next +]
+# Rules to renew the timestamp on a stage and all the following ones
+[+ IF prev +]touch-stage[+prev+]:: touch-stage[+id+] [+ ENDIF prev +]
+touch-stage[+id+]::
+	@[ -f configure-stage[+id+]-gcc ] && \
+	  echo '$(STAMP) configure-stage[+id+]-gcc' && \
+	  $(STAMP) configure-stage[+id+]-gcc; \
+	[ -f all-stage[+id+]-gcc ] && \
+	  echo '$(STAMP) all-stage[+id+]-gcc' && \
+	  $(STAMP) all-stage[+id+]-gcc; \
+	:
+
+# After building a stage, touch the following ones
+[+ IF prev +]restage[+prev+]:: touch-stage[+id+] [+ ENDIF prev +]
+restage[+id+]::
 	rm -rf all-stage[+id+]-gcc [+
 	  IF compare-target +][+compare-target+] [+ ENDIF compare-target +]
-	$(MAKE) $(BASE_FLAGS_TO_PASS) $(RECURSE_FLAGS) [+
+	$(MAKE) $(RECURSE_FLAGS_TO_PASS) [+
 	  IF compare-target +][+compare-target+] [+
 	  ELSE +] all-stage[+id+]-gcc [+ ENDIF compare-target +]
 
@@ -1586,6 +1606,33 @@ restage[+id+]: [+ IF next +] distclean-stage[+next+] [+ ENDIF next +]
 [+ ENDIF cleanstrap-target +]
 
 [+ ENDFOR bootstrap-stage +]
+
+stagefeedback-start::
+	@r=`${PWD_COMMAND}`; export r; \
+	s=`cd $(srcdir); ${PWD_COMMAND}`; export s; \
+	cd stageprofile-gcc && \
+	  { find . -type d | sort | sed 's,.*,$(SHELL) '"$$s"'/mkinstalldirs "../gcc/&",' | $(SHELL); } && \
+	  { find . -name '*.*da' | sed 's,.*,$(LN) -f "&" "../gcc/&",' | $(SHELL); }
+
+profiledbootstrap: all-bootstrap configure-gcc
+	@r=`${PWD_COMMAND}`; export r; \
+	s=`cd $(srcdir); ${PWD_COMMAND}`; export s; \
+	$(SET_LIB_PATH) \
+	$(GCC_HOST_EXPORTS) \
+	echo "Bootstrapping the compiler"; \
+	$(MAKE) stageprofile-bubble distclean-stagefeedback stageprofile-start
+	@r=`${PWD_COMMAND}`; export r; \
+	s=`cd $(srcdir); ${PWD_COMMAND}` ; export s; \
+	$(SET_LIB_PATH) \
+	echo "Building runtime libraries and training compiler"; \
+	$(MAKE) $(BASE_FLAGS_TO_PASS) $(RECURSE_FLAGS) all
+	@r=`${PWD_COMMAND}`; export r; \
+	s=`cd $(srcdir); ${PWD_COMMAND}`; export s; \
+	$(SET_LIB_PATH) \
+	$(GCC_HOST_EXPORTS) \
+	echo "Building feedback based compiler"; \
+	$(MAKE) stagefeedback-bubble stagefeedback-end
+
 @endif gcc-bootstrap
 
 # --------------------------------------
diff --git a/config/ChangeLog b/config/ChangeLog
index 5f4adecc62e..6711da5bdbf 100644
--- a/config/ChangeLog
+++ b/config/ChangeLog
@@ -1,3 +1,8 @@
+2004-06-09  Paolo Bonzini  <bonzini@gnu.org>
+
+	* acx.m4 (ACX_PROG_LN): From gcc, modified to
+	accept a parameter.
+
 2004-05-23  Paolo Bonzini  <bonzini@gnu.org>
 
 	* acx.m4 (ACX_HEADER_STDBOOL, ACX_HEADER_STRING):
diff --git a/config/acx.m4 b/config/acx.m4
index b96d688bde3..09bac1c6c64 100644
--- a/config/acx.m4
+++ b/config/acx.m4
@@ -258,3 +258,27 @@ if test $gcc_cv_c__bool = yes; then
 fi
 ])
 
+dnl See if hard links work and if not, try to substitute $1 or simple copy.
+AC_DEFUN([ACX_PROG_LN],
+[AC_MSG_CHECKING(whether ln works)
+AC_CACHE_VAL(acx_cv_prog_LN,
+[rm -f conftestdata_t
+echo >conftestdata_f
+if ln conftestdata_f conftestdata_t 2>/dev/null
+then
+  acx_cv_prog_LN=ln
+else
+  acx_cv_prog_LN=no
+fi
+rm -f conftestdata_f conftestdata_t
+])dnl
+if test $acx_cv_prog_LN = no; then
+  LN="ifelse([$1],,cp,[$1])"
+  AC_MSG_RESULT([no, using $LN])
+else
+  LN="$acx_cv_prog_LN"
+  AC_MSG_RESULT(yes)
+fi
+AC_SUBST(LN)dnl
+])
+
diff --git a/configure b/configure
index 13f9f04fd83..d3c5983f41f 100755
--- a/configure
+++ b/configure
@@ -735,8 +735,32 @@ test -z "$INSTALL_SCRIPT" && INSTALL_SCRIPT='${INSTALL_PROGRAM}'
 
 test -z "$INSTALL_DATA" && INSTALL_DATA='${INSTALL} -m 644'
 
+echo $ac_n "checking whether ln works""... $ac_c" 1>&6
+echo "configure:740: checking whether ln works" >&5
+if eval "test \"`echo '$''{'acx_cv_prog_LN'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  rm -f conftestdata_t
+echo >conftestdata_f
+if ln conftestdata_f conftestdata_t 2>/dev/null
+then
+  acx_cv_prog_LN=ln
+else
+  acx_cv_prog_LN=no
+fi
+rm -f conftestdata_f conftestdata_t
+
+fi
+if test $acx_cv_prog_LN = no; then
+  LN="cp"
+  echo "$ac_t""no, using $LN" 1>&6
+else
+  LN="$acx_cv_prog_LN"
+  echo "$ac_t""yes" 1>&6
+fi
+
 echo $ac_n "checking whether ln -s works""... $ac_c" 1>&6
-echo "configure:740: checking whether ln -s works" >&5
+echo "configure:764: checking whether ln -s works" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_LN_S'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -757,65 +781,6 @@ else
 fi
 
 
-# Autoconf M4 include file defining utility macros for complex Canadian
-# cross builds.
-
- 
- 
- 
- 
-
-####
-# _NCN_TOOL_PREFIXES:  Some stuff that oughtta be done in AC_CANONICAL_SYSTEM 
-# or AC_INIT.
-# These demand that AC_CANONICAL_SYSTEM be called beforehand.
- 
-####
-# NCN_CHECK_TARGET_TOOL(variable, prog-to-check-for,[value-if-not-found],[path])
-# Like AC_CHECK_TOOL, but tries a prefix of the target, not the host.
-# Code is pretty much lifted from autoconf2.53.
-
- 
-
-####
-# NCN_STRICT_CHECK_TOOL(variable, prog-to-check-for,[value-if-not-found],[path])
-# Like AC_CHECK_TOOL, but requires the prefix if build!=host.
-
- 
-
-####
-# NCN_STRICT_CHECK_TARGET_TOOL(variable, prog-to-check-for,[value-if-not-found],[path])
-# Like NCN_CHECK_TARGET_TOOL, but requires the prefix if build!=target.
-
- 
-###
-# AC_PROG_CPP_WERROR
-# Used for autoconf 2.5x to force AC_PREPROC_IFELSE to reject code which
-# triggers warnings from the preprocessor.  Will be in autoconf 2.58.
-# For now, using this also overrides header checks to use only the
-# preprocessor (matches 2.13 behavior; matching 2.58's behavior is a
-# bit harder from here).
-# Eventually autoconf will default to checking headers with the compiler
-# instead, and we'll have to do this differently.
-
-# AC_PROG_CPP_WERROR
-
-# Test for GNAT.
-# We require the gnatbind program, and a compiler driver that
-# understands Ada.  We use the user's CC setting, already found.
-#
-# Sets the shell variable have_gnat to yes or no as appropriate, and
-# substitutes GNATBIND.
-
-
-
-
-
-
-
-
-
-
 ### we might need to use some other shell than /bin/sh for running subshells
 ### If we are on Windows, search for the shell.  This will permit people
 ### to not have /bin/sh, but to be able to see /SOME/PATH/sh configure
@@ -1922,7 +1887,7 @@ fi
 # Extract the first word of "gcc", so it can be a program name with args.
 set dummy gcc; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:1926: checking for $ac_word" >&5
+echo "configure:1891: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_CC'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1952,7 +1917,7 @@ if test -z "$CC"; then
   # Extract the first word of "cc", so it can be a program name with args.
 set dummy cc; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:1956: checking for $ac_word" >&5
+echo "configure:1921: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_CC'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -2003,7 +1968,7 @@ fi
       # Extract the first word of "cl", so it can be a program name with args.
 set dummy cl; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:2007: checking for $ac_word" >&5
+echo "configure:1972: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_CC'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -2035,7 +2000,7 @@ fi
 fi
 
 echo $ac_n "checking whether the C compiler ($CC $CFLAGS $LDFLAGS) works""... $ac_c" 1>&6
-echo "configure:2039: checking whether the C compiler ($CC $CFLAGS $LDFLAGS) works" >&5
+echo "configure:2004: checking whether the C compiler ($CC $CFLAGS $LDFLAGS) works" >&5
 
 ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
@@ -2046,12 +2011,12 @@ cross_compiling=$ac_cv_prog_cc_cross
 
 cat > conftest.$ac_ext << EOF
 
-#line 2050 "configure"
+#line 2015 "configure"
 #include "confdefs.h"
 
 main(){return(0);}
 EOF
-if { (eval echo configure:2055: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:2020: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   ac_cv_prog_cc_works=yes
   # If we can't run a trivial program, we are probably using a cross compiler.
   if (./conftest; exit) 2>/dev/null; then
@@ -2077,12 +2042,12 @@ if test $ac_cv_prog_cc_works = no; then
   { echo "configure: error: installation or configuration problem: C compiler cannot create executables." 1>&2; exit 1; }
 fi
 echo $ac_n "checking whether the C compiler ($CC $CFLAGS $LDFLAGS) is a cross-compiler""... $ac_c" 1>&6
-echo "configure:2081: checking whether the C compiler ($CC $CFLAGS $LDFLAGS) is a cross-compiler" >&5
+echo "configure:2046: checking whether the C compiler ($CC $CFLAGS $LDFLAGS) is a cross-compiler" >&5
 echo "$ac_t""$ac_cv_prog_cc_cross" 1>&6
 cross_compiling=$ac_cv_prog_cc_cross
 
 echo $ac_n "checking whether we are using GNU C""... $ac_c" 1>&6
-echo "configure:2086: checking whether we are using GNU C" >&5
+echo "configure:2051: checking whether we are using GNU C" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_gcc'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -2091,7 +2056,7 @@ else
   yes;
 #endif
 EOF
-if { ac_try='${CC-cc} -E conftest.c'; { (eval echo configure:2095: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; } | egrep yes >/dev/null 2>&1; then
+if { ac_try='${CC-cc} -E conftest.c'; { (eval echo configure:2060: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; } | egrep yes >/dev/null 2>&1; then
   ac_cv_prog_gcc=yes
 else
   ac_cv_prog_gcc=no
@@ -2110,7 +2075,7 @@ ac_test_CFLAGS="${CFLAGS+set}"
 ac_save_CFLAGS="$CFLAGS"
 CFLAGS=
 echo $ac_n "checking whether ${CC-cc} accepts -g""... $ac_c" 1>&6
-echo "configure:2114: checking whether ${CC-cc} accepts -g" >&5
+echo "configure:2079: checking whether ${CC-cc} accepts -g" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_cc_g'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -2146,7 +2111,7 @@ fi
 # Extract the first word of "${ac_tool_prefix}gnatbind", so it can be a program name with args.
 set dummy ${ac_tool_prefix}gnatbind; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:2150: checking for $ac_word" >&5
+echo "configure:2115: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_GNATBIND'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -2178,7 +2143,7 @@ if test -n "$ac_tool_prefix"; then
   # Extract the first word of "gnatbind", so it can be a program name with args.
 set dummy gnatbind; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:2182: checking for $ac_word" >&5
+echo "configure:2147: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_GNATBIND'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -2211,7 +2176,7 @@ fi
 fi
 
 echo $ac_n "checking whether compiler driver understands Ada""... $ac_c" 1>&6
-echo "configure:2215: checking whether compiler driver understands Ada" >&5
+echo "configure:2180: checking whether compiler driver understands Ada" >&5
 if eval "test \"`echo '$''{'acx_cv_cc_gcc_supports_ada'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -2244,7 +2209,7 @@ else
 fi
 
 echo $ac_n "checking how to compare bootstrapped objects""... $ac_c" 1>&6
-echo "configure:2248: checking how to compare bootstrapped objects" >&5
+echo "configure:2213: checking how to compare bootstrapped objects" >&5
 if eval "test \"`echo '$''{'gcc_cv_prog_cmp_skip'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -2317,9 +2282,9 @@ saved_CFLAGS="$CFLAGS"
 CFLAGS="$CFLAGS $gmpinc"
 # Check GMP actually works
 echo $ac_n "checking for correct version of gmp.h""... $ac_c" 1>&6
-echo "configure:2321: checking for correct version of gmp.h" >&5
+echo "configure:2286: checking for correct version of gmp.h" >&5
 cat > conftest.$ac_ext <<EOF
-#line 2323 "configure"
+#line 2288 "configure"
 #include "confdefs.h"
 #include "gmp.h"
 int main() {
@@ -2330,7 +2295,7 @@ choke me
 
 ; return 0; }
 EOF
-if { (eval echo configure:2334: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:2299: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   echo "$ac_t""yes" 1>&6
 else
@@ -2343,19 +2308,19 @@ rm -f conftest*
 
 if test x"$have_gmp" = xyes; then
   echo $ac_n "checking for mpf_init in -lgmp""... $ac_c" 1>&6
-echo "configure:2347: checking for mpf_init in -lgmp" >&5
+echo "configure:2312: checking for mpf_init in -lgmp" >&5
 
   saved_LIBS="$LIBS"
   LIBS="$LIBS $gmplibs"
   cat > conftest.$ac_ext <<EOF
-#line 2352 "configure"
+#line 2317 "configure"
 #include "confdefs.h"
 #include <gmp.h>
 int main() {
 mpf_t n; mpf_init(n);
 ; return 0; }
 EOF
-if { (eval echo configure:2359: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:2324: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   echo "$ac_t""yes" 1>&6
 else
@@ -2817,7 +2782,7 @@ do
 # Extract the first word of "$ac_prog", so it can be a program name with args.
 set dummy $ac_prog; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:2821: checking for $ac_word" >&5
+echo "configure:2786: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_DEFAULT_YACC'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -2852,7 +2817,7 @@ do
 # Extract the first word of "$ac_prog", so it can be a program name with args.
 set dummy $ac_prog; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:2856: checking for $ac_word" >&5
+echo "configure:2821: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_DEFAULT_M4'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -2887,7 +2852,7 @@ do
 # Extract the first word of "$ac_prog", so it can be a program name with args.
 set dummy $ac_prog; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:2891: checking for $ac_word" >&5
+echo "configure:2856: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_DEFAULT_LEX'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -3499,7 +3464,7 @@ test -n "$target_alias" && ncn_target_tool_prefix=$target_alias-
   # Extract the first word of "${ncn_tool_prefix}ar", so it can be a program name with args.
 set dummy ${ncn_tool_prefix}ar; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:3503: checking for $ac_word" >&5
+echo "configure:3468: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_AR'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -3532,7 +3497,7 @@ if test -z "$ac_cv_prog_AR" ; then
     # Extract the first word of "ar", so it can be a program name with args.
 set dummy ar; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:3536: checking for $ac_word" >&5
+echo "configure:3501: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_ncn_cv_AR'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -3571,7 +3536,7 @@ fi
   # Extract the first word of "${ncn_tool_prefix}as", so it can be a program name with args.
 set dummy ${ncn_tool_prefix}as; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:3575: checking for $ac_word" >&5
+echo "configure:3540: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_AS'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -3604,7 +3569,7 @@ if test -z "$ac_cv_prog_AS" ; then
     # Extract the first word of "as", so it can be a program name with args.
 set dummy as; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:3608: checking for $ac_word" >&5
+echo "configure:3573: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_ncn_cv_AS'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -3643,7 +3608,7 @@ fi
   # Extract the first word of "${ncn_tool_prefix}dlltool", so it can be a program name with args.
 set dummy ${ncn_tool_prefix}dlltool; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:3647: checking for $ac_word" >&5
+echo "configure:3612: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_DLLTOOL'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -3676,7 +3641,7 @@ if test -z "$ac_cv_prog_DLLTOOL" ; then
     # Extract the first word of "dlltool", so it can be a program name with args.
 set dummy dlltool; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:3680: checking for $ac_word" >&5
+echo "configure:3645: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_ncn_cv_DLLTOOL'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -3715,7 +3680,7 @@ fi
   # Extract the first word of "${ncn_tool_prefix}ld", so it can be a program name with args.
 set dummy ${ncn_tool_prefix}ld; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:3719: checking for $ac_word" >&5
+echo "configure:3684: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_LD'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -3748,7 +3713,7 @@ if test -z "$ac_cv_prog_LD" ; then
     # Extract the first word of "ld", so it can be a program name with args.
 set dummy ld; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:3752: checking for $ac_word" >&5
+echo "configure:3717: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_ncn_cv_LD'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -3787,7 +3752,7 @@ fi
   # Extract the first word of "${ncn_tool_prefix}nm", so it can be a program name with args.
 set dummy ${ncn_tool_prefix}nm; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:3791: checking for $ac_word" >&5
+echo "configure:3756: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_NM'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -3820,7 +3785,7 @@ if test -z "$ac_cv_prog_NM" ; then
     # Extract the first word of "nm", so it can be a program name with args.
 set dummy nm; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:3824: checking for $ac_word" >&5
+echo "configure:3789: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_ncn_cv_NM'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -3859,7 +3824,7 @@ fi
   # Extract the first word of "${ncn_tool_prefix}ranlib", so it can be a program name with args.
 set dummy ${ncn_tool_prefix}ranlib; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:3863: checking for $ac_word" >&5
+echo "configure:3828: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_RANLIB'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -3892,7 +3857,7 @@ if test -z "$ac_cv_prog_RANLIB" ; then
     # Extract the first word of "ranlib", so it can be a program name with args.
 set dummy ranlib; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:3896: checking for $ac_word" >&5
+echo "configure:3861: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_ncn_cv_RANLIB'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -3931,7 +3896,7 @@ fi
   # Extract the first word of "${ncn_tool_prefix}windres", so it can be a program name with args.
 set dummy ${ncn_tool_prefix}windres; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:3935: checking for $ac_word" >&5
+echo "configure:3900: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_WINDRES'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -3964,7 +3929,7 @@ if test -z "$ac_cv_prog_WINDRES" ; then
     # Extract the first word of "windres", so it can be a program name with args.
 set dummy windres; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:3968: checking for $ac_word" >&5
+echo "configure:3933: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_ncn_cv_WINDRES'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -4003,7 +3968,7 @@ fi
   # Extract the first word of "${ncn_tool_prefix}objcopy", so it can be a program name with args.
 set dummy ${ncn_tool_prefix}objcopy; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:4007: checking for $ac_word" >&5
+echo "configure:3972: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_OBJCOPY'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -4036,7 +4001,7 @@ if test -z "$ac_cv_prog_OBJCOPY" ; then
     # Extract the first word of "objcopy", so it can be a program name with args.
 set dummy objcopy; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:4040: checking for $ac_word" >&5
+echo "configure:4005: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_ncn_cv_OBJCOPY'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -4075,7 +4040,7 @@ fi
   # Extract the first word of "${ncn_tool_prefix}objdump", so it can be a program name with args.
 set dummy ${ncn_tool_prefix}objdump; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:4079: checking for $ac_word" >&5
+echo "configure:4044: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_OBJDUMP'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -4108,7 +4073,7 @@ if test -z "$ac_cv_prog_OBJDUMP" ; then
     # Extract the first word of "objdump", so it can be a program name with args.
 set dummy objdump; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:4112: checking for $ac_word" >&5
+echo "configure:4077: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_ncn_cv_OBJDUMP'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -4157,7 +4122,7 @@ fi
   # Extract the first word of "${ncn_target_tool_prefix}ar", so it can be a program name with args.
 set dummy ${ncn_target_tool_prefix}ar; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:4161: checking for $ac_word" >&5
+echo "configure:4126: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_CONFIGURED_AR_FOR_TARGET'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -4190,7 +4155,7 @@ if test -z "$ac_cv_prog_CONFIGURED_AR_FOR_TARGET" ; then
     # Extract the first word of "ar", so it can be a program name with args.
 set dummy ar; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:4194: checking for $ac_word" >&5
+echo "configure:4159: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_ncn_cv_CONFIGURED_AR_FOR_TARGET'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -4229,7 +4194,7 @@ fi
   # Extract the first word of "${ncn_target_tool_prefix}as", so it can be a program name with args.
 set dummy ${ncn_target_tool_prefix}as; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:4233: checking for $ac_word" >&5
+echo "configure:4198: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_CONFIGURED_AS_FOR_TARGET'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -4262,7 +4227,7 @@ if test -z "$ac_cv_prog_CONFIGURED_AS_FOR_TARGET" ; then
     # Extract the first word of "as", so it can be a program name with args.
 set dummy as; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:4266: checking for $ac_word" >&5
+echo "configure:4231: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_ncn_cv_CONFIGURED_AS_FOR_TARGET'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -4301,7 +4266,7 @@ fi
   # Extract the first word of "${ncn_target_tool_prefix}dlltool", so it can be a program name with args.
 set dummy ${ncn_target_tool_prefix}dlltool; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:4305: checking for $ac_word" >&5
+echo "configure:4270: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_CONFIGURED_DLLTOOL_FOR_TARGET'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -4334,7 +4299,7 @@ if test -z "$ac_cv_prog_CONFIGURED_DLLTOOL_FOR_TARGET" ; then
     # Extract the first word of "dlltool", so it can be a program name with args.
 set dummy dlltool; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:4338: checking for $ac_word" >&5
+echo "configure:4303: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_ncn_cv_CONFIGURED_DLLTOOL_FOR_TARGET'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -4373,7 +4338,7 @@ fi
   # Extract the first word of "${ncn_target_tool_prefix}ld", so it can be a program name with args.
 set dummy ${ncn_target_tool_prefix}ld; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:4377: checking for $ac_word" >&5
+echo "configure:4342: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_CONFIGURED_LD_FOR_TARGET'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -4406,7 +4371,7 @@ if test -z "$ac_cv_prog_CONFIGURED_LD_FOR_TARGET" ; then
     # Extract the first word of "ld", so it can be a program name with args.
 set dummy ld; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:4410: checking for $ac_word" >&5
+echo "configure:4375: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_ncn_cv_CONFIGURED_LD_FOR_TARGET'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -4445,7 +4410,7 @@ fi
   # Extract the first word of "${ncn_target_tool_prefix}nm", so it can be a program name with args.
 set dummy ${ncn_target_tool_prefix}nm; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:4449: checking for $ac_word" >&5
+echo "configure:4414: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_CONFIGURED_NM_FOR_TARGET'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -4478,7 +4443,7 @@ if test -z "$ac_cv_prog_CONFIGURED_NM_FOR_TARGET" ; then
     # Extract the first word of "nm", so it can be a program name with args.
 set dummy nm; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:4482: checking for $ac_word" >&5
+echo "configure:4447: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_ncn_cv_CONFIGURED_NM_FOR_TARGET'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -4517,7 +4482,7 @@ fi
   # Extract the first word of "${ncn_target_tool_prefix}ranlib", so it can be a program name with args.
 set dummy ${ncn_target_tool_prefix}ranlib; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:4521: checking for $ac_word" >&5
+echo "configure:4486: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_CONFIGURED_RANLIB_FOR_TARGET'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -4550,7 +4515,7 @@ if test -z "$ac_cv_prog_CONFIGURED_RANLIB_FOR_TARGET" ; then
     # Extract the first word of "ranlib", so it can be a program name with args.
 set dummy ranlib; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:4554: checking for $ac_word" >&5
+echo "configure:4519: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_ncn_cv_CONFIGURED_RANLIB_FOR_TARGET'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -4589,7 +4554,7 @@ fi
   # Extract the first word of "${ncn_target_tool_prefix}windres", so it can be a program name with args.
 set dummy ${ncn_target_tool_prefix}windres; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:4593: checking for $ac_word" >&5
+echo "configure:4558: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_CONFIGURED_WINDRES_FOR_TARGET'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -4622,7 +4587,7 @@ if test -z "$ac_cv_prog_CONFIGURED_WINDRES_FOR_TARGET" ; then
     # Extract the first word of "windres", so it can be a program name with args.
 set dummy windres; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:4626: checking for $ac_word" >&5
+echo "configure:4591: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_ncn_cv_CONFIGURED_WINDRES_FOR_TARGET'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -4707,7 +4672,7 @@ RANLIB_FOR_TARGET=${RANLIB_FOR_TARGET}${extra_ranlibflags_for_target}
 NM_FOR_TARGET=${NM_FOR_TARGET}${extra_nmflags_for_target}
 
 echo $ac_n "checking whether to enable maintainer-specific portions of Makefiles""... $ac_c" 1>&6
-echo "configure:4711: checking whether to enable maintainer-specific portions of Makefiles" >&5
+echo "configure:4676: checking whether to enable maintainer-specific portions of Makefiles" >&5
 # Check whether --enable-maintainer-mode or --disable-maintainer-mode was given.
 if test "${enable_maintainer_mode+set}" = set; then
   enableval="$enable_maintainer_mode"
@@ -4754,7 +4719,7 @@ esac
 # gcc for stageN-gcc and stage-prev for stage(N-1).  In case this is not
 # possible, however, we can resort to mv.
 echo $ac_n "checking if symbolic links between directories work""... $ac_c" 1>&6
-echo "configure:4758: checking if symbolic links between directories work" >&5
+echo "configure:4723: checking if symbolic links between directories work" >&5
 if eval "test \"`echo '$''{'gcc_cv_prog_ln_s_dir'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -4965,6 +4930,7 @@ s%@build_os@%$build_os%g
 s%@INSTALL_PROGRAM@%$INSTALL_PROGRAM%g
 s%@INSTALL_SCRIPT@%$INSTALL_SCRIPT%g
 s%@INSTALL_DATA@%$INSTALL_DATA%g
+s%@LN@%$LN%g
 s%@LN_S@%$LN_S%g
 s%@TOPLEVEL_CONFIGURE_ARGUMENTS@%$TOPLEVEL_CONFIGURE_ARGUMENTS%g
 s%@build_subdir@%$build_subdir%g
diff --git a/configure.in b/configure.in
index 7f6e97179a6..a42a1c51d25 100644
--- a/configure.in
+++ b/configure.in
@@ -18,6 +18,8 @@
 ##############################################################################
 ### WARNING: this file contains embedded tabs.  Do not run untabify on this file.
 
+sinclude(config/acx.m4)
+
 AC_INIT(move-if-change)
 AC_PREREQ(2.13)
 AC_CANONICAL_SYSTEM
@@ -25,10 +27,9 @@ AC_ARG_PROGRAM
 
 # Get 'install' or 'install-sh' and its variants.
 AC_PROG_INSTALL
+ACX_PROG_LN
 AC_PROG_LN_S
 
-sinclude(config/acx.m4)
-
 ### we might need to use some other shell than /bin/sh for running subshells
 ### If we are on Windows, search for the shell.  This will permit people
 ### to not have /bin/sh, but to be able to see /SOME/PATH/sh configure