+2005-05-24 Paolo Bonzini <bonzini@gnu.org>
+
+ * configure.in: Test the ability to symlink directories.
+ * configure: Regenerate.
+
+ * Makefile.def (bootstrap-stage): New definitions.
+ * Makefile.tpl (configure-stage1-gcc,
+ configure-stage2-gcc, configure-stage3-gcc,
+ all-stage1-gcc, all-stage2-gcc, all-stage3-gcc,
+ new-bootstrap, new-cleanstrap, new-restage1, new-restage2,
+ new-restage3, compare): Autogenerate, see Makefile.in
+ entry for behavioral changes.
+ (distclean-stage1, new-stage1-start, new-stage1-end,
+ new-stage1-bubble, distclean-stage2, new-stage2-start,
+ new-stage2-end, new-stage2-bubble, distclean-stage3,
+ new-stage3-start, new-stage3-end): New autogenerated targets.
+ (objext, prebootstrap, BOOT_CFLAGS,
+ POSTSTAGE1_FLAGS_TO_PASS): Move above the autogenerated
+ targets.
+
+ * Makefile.in: Regenerate.
+ (distclean-stage1, new-stage1-start, new-stage1-end,
+ new-stage1-bubble, distclean-stage2, new-stage2-start,
+ new-stage2-end, new-stage2-bubble, distclean-stage3,
+ new-stage3-start, new-stage3-end): New targets.
+ (all-stage1-gcc): Move prebootstrap dependency from here...
+ (configure-stage1-gcc): ...to here.
+ (new-bootstrap): Use bubble targets.
+ (new-cleanstrap, new-restage1, new-restage2, new-restage3):
+ Use per-stage distclean targets.
+ (configure-stage1-gcc, configure-stage2-gcc,
+ configure-stage3-gcc, all-stage1-gcc,
+ all-stage2-gcc, all-stage3-gcc, new-bootstrap):
+ Use new-stageN-start to prepare the tree.
+
2004-05-23 Paolo Bonzini <bonzini@gnu.org>
* Makefile.def (host_modules): add libcpp.
flags_to_pass = { flag= NM_FOR_TARGET ; };
flags_to_pass = { flag= RANLIB_FOR_TARGET ; };
flags_to_pass = { flag= WINDRES_FOR_TARGET ; };
+
+// Toplevel bootstrap
+bootstrap_stage = {
+ id=1 ; next=2 ;
+ 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 ;
+ extra_configure_flags="@stage2_werror_flag@" ;
+ extra_make_flags="$(POSTSTAGE1_FLAGS_TO_PASS)" ; };
+bootstrap_stage = {
+ id=3 ; prev=2 ;
+ compare_target=compare ;
+ bootstrap_target=new-bootstrap ;
+ cleanstrap_target=new-cleanstrap ;
+ extra_configure_flags="@stage2_werror_flag@" ;
+ extra_make_flags="$(POSTSTAGE1_FLAGS_TO_PASS)" ; };
# GCC bootstrap support
# ---------------------
-# We name the directories for the various stages "stage1-gcc",
-# "stage2-gcc","stage3-gcc", etc.
-# Unfortunately, the 'compare' process will fail (on debugging information)
-# if any directory names are different!
-# So in the building rule for each stage, we relocate them before and after.
-# The current one is 'gcc', while the previous one is 'prev-gcc'. (The
-# current one must be 'gcc' for now because the scripts in that directory
-# assume it.)
-# At the end of the bootstrap, 'stage3-gcc' must be moved to 'gcc' so that
-# libraries can find it. Ick!
+# We track the current stage (the one in 'gcc') in the stage_last file.
+# We name the build directories for the various stages "stage1-gcc",
+# "stage2-gcc","stage3-gcc", etc.
+
+# Since the 'compare' process will fail (on debugging information) if any
+# directory names are different, we need to link the gcc directory for
+# the previous stage to a constant name ('gcc-prev'), and to make the name of
+# the build directories constant as well. For the latter, we use naked names
+# like 'gcc', because the scripts in that directory assume it. We use
+# mv on platforms where symlinks to directories do not work or are not
+# reliable.
+
+# At the end of the bootstrap, a symlink to 'stage3-gcc' named 'gcc' must
+# be kept, so that libraries can find it. Ick!
+
+# It would be best to preinstall gcc into a staging area (and in the
+# future, gather there all prebootstrap packages). This would allow
+# assemblers and linkers can be bootstrapped as well as the compiler
+# (both in a combined tree, or separately). This however requires some
+# change to the gcc driver, again in order to avoid comparison failures.
# Bugs: This is almost certainly not parallel-make safe.
STAGE1_CFLAGS=@stage1_cflags@
STAGE1_LANGUAGES=@stage1_languages@
+# We only want to compare .o files, so set this!
+objext = .o
+
+# Real targets act phony if they depend on phony targets; this hack
+# prevents gratuitous rebuilding of stage 1.
+prebootstrap:
+ $(MAKE) all-bootstrap
+ $(STAMP) prebootstrap
+
+# Flags to pass to stage2 and later makes.
+BOOT_CFLAGS= -g -O2
+POSTSTAGE1_FLAGS_TO_PASS = \
+ CFLAGS="$(BOOT_CFLAGS)" \
+ ADAC="\$$(CC)"
+
# For stage 1:
# * We force-disable intermodule optimizations, even if
# --enable-intermodule was passed, since the installed compiler probably
# * Likewise, we force-disable coverage flags, since the installed compiler
# probably has never heard of them.
# * We build only C (and possibly Ada).
-configure-stage1-gcc:
- echo configure-stage1-gcc > stage_last ; \
- if [ -f stage1-gcc/Makefile ] ; then \
+
+
+.PHONY: new-stage1-start new-stage1-end
+
+new-stage1-start:
+ [ -f stage_last ] && $(MAKE) new-`cat stage_last`-end || :
+ echo stage1 > stage_last ; \
+ [ -d stage1-gcc ] || mkdir stage1-gcc; \
+ set stage1-gcc gcc ; @CREATE_LINK_TO_DIR@
+
+new-stage1-end:
+ rm -f stage_last ; \
+ set gcc stage1-gcc ; @UNDO_LINK_TO_DIR@
+
+# Bubble a bugfix through all the stages up to stage 1. They
+# are remade, but not reconfigured. The next stage (if any) will not
+# be reconfigured as well.
+.PHONY: new-stage1-bubble
+new-stage1-bubble:
+ @if [ -f all-stage1-gcc ] ; then \
+ echo Remaking stage 1 ; \
+ rm -f all-stage1-gcc ; \
+ $(MAKE) all-stage1-gcc && \
+ if [ -f configure-stage2-gcc ] ; then \
+ $(STAMP) configure-stage2-gcc ; \
+ fi ; \
+ else \
+ $(MAKE) all-stage1-gcc ; \
+ fi
+
+configure-stage1-gcc: prebootstrap
+ $(MAKE) new-stage1-start
+ @if [ -f stage1-gcc/Makefile ] ; then \
$(STAMP) configure-stage1-gcc ; \
exit 0; \
else \
true ; \
fi ; \
- [ -d stage1-gcc ] || mkdir stage1-gcc; \
- mv stage1-gcc gcc ; \
r=`${PWD_COMMAND}`; export r; \
s=`cd $(srcdir); ${PWD_COMMAND}`; export s; \
CONFIG_SHELL="$(SHELL)"; export CONFIG_SHELL; \
TOPLEVEL_CONFIGURE_ARGUMENTS="$(TOPLEVEL_CONFIGURE_ARGUMENTS)"; export TOPLEVEL_CONFIGURE_ARGUMENTS; \
- CC="$(CC)"; export CC; \
CFLAGS="$(CFLAGS)"; export CFLAGS; \
CXX="$(CXX)"; export CXX; \
CXXFLAGS="$(CXXFLAGS)"; export CXXFLAGS; \
AR="$(AR)"; export AR; \
AS="$(AS)"; export AS; \
- CC_FOR_BUILD="$(CC_FOR_BUILD)"; export CC_FOR_BUILD; \
DLLTOOL="$(DLLTOOL)"; export DLLTOOL; \
LD="$(LD)"; export LD; \
LDFLAGS="$(LDFLAGS)"; export LDFLAGS; \
WINDRES="$(WINDRES)"; export WINDRES; \
OBJCOPY="$(OBJCOPY)"; export OBJCOPY; \
OBJDUMP="$(OBJDUMP)"; export OBJDUMP; \
- echo Configuring stage 1 in gcc; \
+ GMPLIBS="$(HOST_GMPLIBS)"; export GMPLIBS; \
+ GMPINC="$(HOST_GMPINC)"; export GMPINC ; \
+ CC="$(CC)"; export CC; \
+ CC_FOR_BUILD="$(CC_FOR_BUILD)"; export CC_FOR_BUILD ; \
+ echo Configuring stage 1 in gcc ; \
cd gcc || exit 1; \
case $(srcdir) in \
\.) \
esac; \
$(SHELL) $${libsrcdir}/configure \
$(HOST_CONFIGARGS) $${srcdiroption} \
- --disable-intermodule --disable-coverage \
- --enable-languages="$(STAGE1_LANGUAGES)"; \
- cd .. ; \
- mv gcc stage1-gcc ; \
- $(STAMP) configure-stage1-gcc
+ --disable-intermodule --disable-coverage --enable-languages="$(STAGE1_LANGUAGES)" && \
+ $(STAMP) ../configure-stage1-gcc
-# Real targets act phony if they depend on phony targets; this hack
-# prevents gratuitous rebuilding of stage 1.
-prebootstrap:
- $(MAKE) all-bootstrap
- $(STAMP) prebootstrap
-
-all-stage1-gcc: configure-stage1-gcc prebootstrap
- echo all-stage1-gcc > stage_last ; \
- r=`${PWD_COMMAND}`; export r; \
+all-stage1-gcc: configure-stage1-gcc
+ $(MAKE) new-stage1-start
+ @r=`${PWD_COMMAND}`; export r; \
s=`cd $(srcdir); ${PWD_COMMAND}`; export s; \
- mv stage1-gcc gcc ; \
cd gcc && \
- $(MAKE) $(GCC_FLAGS_TO_PASS) \
- CFLAGS="$(STAGE1_CFLAGS)" && $(STAMP) ../all-stage1-gcc ; \
- result=$$? ; \
- cd .. ; \
- mv gcc stage1-gcc ; \
- exit $$result
-
-# TODO: Deal with STAGE_PREFIX (which is only for ada, incidentally)
-# Possibly pass --enable-werror-always (depending on --enable-werror);
-# that's what @stage2_werror_flag@ is for
-configure-stage2-gcc: all-stage1-gcc
- echo configure-stage2-gcc > stage_last ; \
- if [ -f stage2-gcc/Makefile ] ; then \
+ $(MAKE) $(GCC_FLAGS_TO_PASS) \
+ CFLAGS="$(STAGE1_CFLAGS)" && $(STAMP) ../all-stage1-gcc
+
+
+
+
+
+.PHONY: new-restage1 distclean-stage1
+
+distclean-stage1: distclean-stage2
+ [ -f stage_last ] && $(MAKE) new-`cat stage_last`-end || :
+ rm -rf configure-stage1-gcc all-stage1-gcc stage1-gcc
+
+new-restage1: distclean-stage2
+ rm -rf all-stage1-gcc
+ $(MAKE) all-stage1-gcc
+
+
+
+
+.PHONY: new-stage2-start new-stage2-end
+
+new-stage2-start:
+ [ -f stage_last ] && $(MAKE) new-`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@
+
+new-stage2-end:
+ rm -f stage_last ; \
+ set gcc stage2-gcc ; @UNDO_LINK_TO_DIR@ ; \
+ set prev-gcc stage1-gcc ; @UNDO_LINK_TO_DIR@
+
+# Bubble a bugfix through all the stages up to stage 2. They
+# are remade, but not reconfigured. The next stage (if any) will not
+# be reconfigured as well.
+.PHONY: new-stage2-bubble
+new-stage2-bubble: new-stage1-bubble
+ @if [ -f all-stage2-gcc ] ; then \
+ echo Remaking stage 2 ; \
+ rm -f all-stage2-gcc ; \
+ $(MAKE) all-stage2-gcc && \
+ if [ -f configure-stage3-gcc ] ; then \
+ $(STAMP) configure-stage3-gcc ; \
+ fi ; \
+ else \
+ $(MAKE) all-stage2-gcc ; \
+ fi
+
+configure-stage2-gcc: all-stage1-gcc
+ $(MAKE) new-stage2-start
+ @if [ -f stage2-gcc/Makefile ] ; then \
$(STAMP) configure-stage2-gcc ; \
exit 0; \
else \
true ; \
fi ; \
- [ -d stage2-gcc ] || mkdir stage2-gcc; \
- mv stage2-gcc gcc ; \
- mv stage1-gcc prev-gcc ; \
r=`${PWD_COMMAND}`; export r; \
s=`cd $(srcdir); ${PWD_COMMAND}`; export s; \
CONFIG_SHELL="$(SHELL)"; export CONFIG_SHELL; \
WINDRES="$(WINDRES)"; export WINDRES; \
OBJCOPY="$(OBJCOPY)"; export OBJCOPY; \
OBJDUMP="$(OBJDUMP)"; export OBJDUMP; \
+ GMPLIBS="$(HOST_GMPLIBS)"; export GMPLIBS; \
+ GMPINC="$(HOST_GMPINC)"; export GMPINC ; \
CC="$(STAGE_CC_WRAPPER) $$r/prev-gcc/xgcc$(exeext) -B$$r/prev-gcc/ -B$(build_tooldir)/bin/"; export CC; \
- CC_FOR_BUILD="$(STAGE_CC_WRAPPER) $$r/prev-gcc/xgcc$(exeext) -B$$r/prev-gcc/ -B$(build_tooldir)/bin/"; export CC_FOR_BUILD; \
- echo Configuring stage 2 in gcc; \
+ CC_FOR_BUILD="$(STAGE_CC_WRAPPER) $$r/prev-gcc/xgcc$(exeext) -B$$r/prev-gcc/ -B$(build_tooldir)/bin/"; export CC_FOR_BUILD ; \
+ echo Configuring stage 2 in gcc ; \
cd gcc || exit 1; \
case $(srcdir) in \
\.) \
libsrcdir="$$s/gcc";; \
esac; \
$(SHELL) $${libsrcdir}/configure \
- $(HOST_CONFIGARGS) $${srcdiroption} @stage2_werror_flag@ ; \
- cd .. ; \
- mv gcc stage2-gcc ; \
- mv prev-gcc stage1-gcc ; \
- $(STAMP) configure-stage2-gcc
-
-# Flags to pass to stage2 and later makes.
-BOOT_CFLAGS= -g -O2
-POSTSTAGE1_FLAGS_TO_PASS = \
- CFLAGS="$(BOOT_CFLAGS)" \
- ADAC="\$$(CC)"
+ $(HOST_CONFIGARGS) $${srcdiroption} \
+ @stage2_werror_flag@ && \
+ $(STAMP) ../configure-stage2-gcc
-all-stage2-gcc: all-stage1-gcc configure-stage2-gcc
- echo all-stage2-gcc > stage_last ; \
- r=`${PWD_COMMAND}`; export r; \
+all-stage2-gcc: configure-stage2-gcc
+ $(MAKE) new-stage2-start
+ @r=`${PWD_COMMAND}`; export r; \
s=`cd $(srcdir); ${PWD_COMMAND}`; export s; \
- mv stage2-gcc gcc ; \
- mv stage1-gcc prev-gcc ; \
cd gcc && \
- $(MAKE) $(GCC_FLAGS_TO_PASS) \
+ $(MAKE) $(GCC_FLAGS_TO_PASS) \
CC="$(STAGE_CC_WRAPPER) $$r/prev-gcc/xgcc$(exeext) -B$$r/prev-gcc/ -B$(build_tooldir)/bin/" \
CC_FOR_BUILD="$(STAGE_CC_WRAPPER) $$r/prev-gcc/xgcc$(exeext) -B$$r/prev-gcc/ -B$(build_tooldir)/bin/" \
- STAGE_PREFIX=$$r/prev-gcc/ \
- $(POSTSTAGE1_FLAGS_TO_PASS) && $(STAMP) ../all-stage2-gcc ; \
- result=$$? ; \
- cd .. ; \
- mv prev-gcc stage1-gcc ; \
- mv gcc stage2-gcc ; \
- exit $$result
+ STAGE_PREFIX=$$r/stage1-gcc/ \
+ $(POSTSTAGE1_FLAGS_TO_PASS) && $(STAMP) ../all-stage2-gcc
+
+
+
+
+
+.PHONY: new-restage2 distclean-stage2
+
+distclean-stage2: distclean-stage3
+ [ -f stage_last ] && $(MAKE) new-`cat stage_last`-end || :
+ rm -rf configure-stage2-gcc all-stage2-gcc stage2-gcc
-configure-stage3-gcc: all-stage2-gcc
- echo configure-stage3-gcc > stage_last ; \
- if [ -f stage3-gcc/Makefile ] ; then \
+new-restage2: distclean-stage3
+ rm -rf all-stage2-gcc
+ $(MAKE) all-stage2-gcc
+
+
+
+
+.PHONY: new-stage3-start new-stage3-end
+
+new-stage3-start:
+ [ -f stage_last ] && $(MAKE) new-`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@
+
+new-stage3-end:
+ rm -f stage_last ; \
+ set gcc stage3-gcc ; @UNDO_LINK_TO_DIR@ ; \
+ set prev-gcc stage2-gcc ; @UNDO_LINK_TO_DIR@
+
+# Bubble a bugfix through all the stages up to stage 3. They
+# are remade, but not reconfigured. The next stage (if any) will not
+# be reconfigured as well.
+.PHONY: new-stage3-bubble
+new-stage3-bubble: new-stage2-bubble
+ @if [ -f all-stage3-gcc ] ; then \
+ echo Remaking stage 3 ; \
+ rm -f all-stage3-gcc ; \
+ $(MAKE) all-stage3-gcc ; \
+ else \
+ $(MAKE) all-stage3-gcc ; \
+ fi
+
+configure-stage3-gcc: all-stage2-gcc
+ $(MAKE) new-stage3-start
+ @if [ -f stage3-gcc/Makefile ] ; then \
$(STAMP) configure-stage3-gcc ; \
exit 0; \
else \
true ; \
fi ; \
- [ -d stage3-gcc ] || mkdir stage3-gcc; \
- mv stage3-gcc gcc ; \
- mv stage2-gcc prev-gcc ; \
r=`${PWD_COMMAND}`; export r; \
s=`cd $(srcdir); ${PWD_COMMAND}`; export s; \
CONFIG_SHELL="$(SHELL)"; export CONFIG_SHELL; \
WINDRES="$(WINDRES)"; export WINDRES; \
OBJCOPY="$(OBJCOPY)"; export OBJCOPY; \
OBJDUMP="$(OBJDUMP)"; export OBJDUMP; \
+ GMPLIBS="$(HOST_GMPLIBS)"; export GMPLIBS; \
+ GMPINC="$(HOST_GMPINC)"; export GMPINC ; \
CC="$(STAGE_CC_WRAPPER) $$r/prev-gcc/xgcc$(exeext) -B$$r/prev-gcc/ -B$(build_tooldir)/bin/"; export CC; \
- CC_FOR_BUILD="$(STAGE_CC_WRAPPER) $$r/prev-gcc/xgcc$(exeext) -B$$r/prev-gcc/ -B$(build_tooldir)/bin/"; export CC_FOR_BUILD; \
- echo Configuring stage 3 in gcc; \
+ CC_FOR_BUILD="$(STAGE_CC_WRAPPER) $$r/prev-gcc/xgcc$(exeext) -B$$r/prev-gcc/ -B$(build_tooldir)/bin/"; export CC_FOR_BUILD ; \
+ echo Configuring stage 3 in gcc ; \
cd gcc || exit 1; \
case $(srcdir) in \
\.) \
libsrcdir="$$s/gcc";; \
esac; \
$(SHELL) $${libsrcdir}/configure \
- $(HOST_CONFIGARGS) $${srcdiroption} @stage2_werror_flag@ ; \
- cd .. ; \
- mv gcc stage3-gcc ; \
- mv prev-gcc stage2-gcc ; \
- $(STAMP) configure-stage3-gcc
+ $(HOST_CONFIGARGS) $${srcdiroption} \
+ @stage2_werror_flag@ && \
+ $(STAMP) ../configure-stage3-gcc
-all-stage3-gcc: all-stage2-gcc configure-stage3-gcc
- echo all-stage3-gcc > stage_last ; \
- r=`${PWD_COMMAND}`; export r; \
+all-stage3-gcc: configure-stage3-gcc
+ $(MAKE) new-stage3-start
+ @r=`${PWD_COMMAND}`; export r; \
s=`cd $(srcdir); ${PWD_COMMAND}`; export s; \
- mv stage2-gcc prev-gcc ; \
- mv stage3-gcc gcc ; \
cd gcc && \
- $(MAKE) $(GCC_FLAGS_TO_PASS) \
+ $(MAKE) $(GCC_FLAGS_TO_PASS) \
CC="$(STAGE_CC_WRAPPER) $$r/prev-gcc/xgcc$(exeext) -B$$r/prev-gcc/ -B$(build_tooldir)/bin/" \
CC_FOR_BUILD="$(STAGE_CC_WRAPPER) $$r/prev-gcc/xgcc$(exeext) -B$$r/prev-gcc/ -B$(build_tooldir)/bin/" \
- STAGE_PREFIX=$$r/prev-gcc/ \
- $(POSTSTAGE1_FLAGS_TO_PASS) && $(STAMP) ../all-stage3-gcc \
- result=$$? ; \
- cd .. ; \
- mv prev-gcc stage2-gcc ; \
- mv gcc stage3-gcc ; \
- exit $$result
+ STAGE_PREFIX=$$r/stage2-gcc/ \
+ $(POSTSTAGE1_FLAGS_TO_PASS) && $(STAMP) ../all-stage3-gcc
-# We only want to compare .o files, so set this!
-objext = .o
compare: all-stage3-gcc
- r=`${PWD_COMMAND}`; export r; \
+ [ -f stage_last ] && $(MAKE) new-`cat stage_last`-end || :
+ @r=`${PWD_COMMAND}`; export r; \
s=`cd $(srcdir); ${PWD_COMMAND}`; export s; \
rm -f .bad_compare ; \
cd stage3-gcc; \
else \
true; \
fi ; \
- $(STAMP) compare
+ $(STAMP) compare
+
+
.PHONY: new-bootstrap
-# This target exists so that everything can be made in one pass.
-# 'all-gcc' has to avoid stomping on the bootstrap-generated gcc for
-# this to work.
-new-bootstrap: compare
- mv stage3-gcc gcc ; \
- $(MAKE) all ; \
- mv gcc stage3-gcc
-
-new-cleanstrap:
- rm -rf configure-stage1-gcc all-stage1-gcc stage1-gcc \
- configure-stage2-gcc all-stage2-gcc stage2-gcc \
- configure-stage3-gcc all-stage3-gcc stage3-gcc \
- compare
- $(MAKE) new-bootstrap
-
-new-restage1:
- rm -rf all-stage1-gcc \
- configure-stage2-gcc all-stage2-gcc stage2-gcc \
- configure-stage3-gcc all-stage3-gcc stage3-gcc \
- compare
- $(MAKE) all-stage1-gcc
-
-new-restage2: all-stage1-gcc
- rm -rf all-stage2-gcc \
- configure-stage3-gcc all-stage3-gcc stage3-gcc \
- compare
- $(MAKE) all-stage2-gcc
-
-new-restage3: all-stage2-gcc
- rm -rf all-stage3-gcc compare
- $(MAKE) compare
+new-bootstrap:
+ $(MAKE) new-stage3-bubble compare \
+ new-stage3-start all new-stage3-end
+
+
+.PHONY: new-restage3 distclean-stage3
+
+distclean-stage3:
+ [ -f stage_last ] && $(MAKE) new-`cat stage_last`-end || :
+ rm -rf configure-stage3-gcc all-stage3-gcc stage3-gcc compare
+
+new-restage3:
+ rm -rf all-stage3-gcc compare
+ $(MAKE) compare
+
+
+.PHONY: new-cleanstrap
+new-cleanstrap: distclean-stage1 new-bootstrap
+
+
+
# --------------------------------------
# Dependencies between different modules
# GCC bootstrap support
# ---------------------
-# We name the directories for the various stages "stage1-gcc",
-# "stage2-gcc","stage3-gcc", etc.
-# Unfortunately, the 'compare' process will fail (on debugging information)
-# if any directory names are different!
-# So in the building rule for each stage, we relocate them before and after.
-# The current one is 'gcc', while the previous one is 'prev-gcc'. (The
-# current one must be 'gcc' for now because the scripts in that directory
-# assume it.)
-# At the end of the bootstrap, 'stage3-gcc' must be moved to 'gcc' so that
-# libraries can find it. Ick!
+# We track the current stage (the one in 'gcc') in the stage_last file.
+# We name the build directories for the various stages "stage1-gcc",
+# "stage2-gcc","stage3-gcc", etc.
+
+# Since the 'compare' process will fail (on debugging information) if any
+# directory names are different, we need to link the gcc directory for
+# the previous stage to a constant name ('gcc-prev'), and to make the name of
+# the build directories constant as well. For the latter, we use naked names
+# like 'gcc', because the scripts in that directory assume it. We use
+# mv on platforms where symlinks to directories do not work or are not
+# reliable.
+
+# At the end of the bootstrap, a symlink to 'stage3-gcc' named 'gcc' must
+# be kept, so that libraries can find it. Ick!
+
+# It would be best to preinstall gcc into a staging area (and in the
+# future, gather there all prebootstrap packages). This would allow
+# assemblers and linkers can be bootstrapped as well as the compiler
+# (both in a combined tree, or separately). This however requires some
+# change to the gcc driver, again in order to avoid comparison failures.
# Bugs: This is almost certainly not parallel-make safe.
STAGE1_CFLAGS=@stage1_cflags@
STAGE1_LANGUAGES=@stage1_languages@
-# For stage 1:
-# * We force-disable intermodule optimizations, even if
-# --enable-intermodule was passed, since the installed compiler probably
-# can't handle them. Luckily, autoconf always respects
-# the last argument when conflicting --enable arguments are passed.
-# * Likewise, we force-disable coverage flags, since the installed compiler
-# probably has never heard of them.
-# * We build only C (and possibly Ada).
-configure-stage1-gcc:
- echo configure-stage1-gcc > stage_last ; \
- if [ -f stage1-gcc/Makefile ] ; then \
- $(STAMP) configure-stage1-gcc ; \
- exit 0; \
- else \
- true ; \
- fi ; \
- [ -d stage1-gcc ] || mkdir stage1-gcc; \
- mv stage1-gcc gcc ; \
- r=`${PWD_COMMAND}`; export r; \
- s=`cd $(srcdir); ${PWD_COMMAND}`; export s; \
- CONFIG_SHELL="$(SHELL)"; export CONFIG_SHELL; \
- TOPLEVEL_CONFIGURE_ARGUMENTS="$(TOPLEVEL_CONFIGURE_ARGUMENTS)"; export TOPLEVEL_CONFIGURE_ARGUMENTS; \
- CC="$(CC)"; export CC; \
- CFLAGS="$(CFLAGS)"; export CFLAGS; \
- CXX="$(CXX)"; export CXX; \
- CXXFLAGS="$(CXXFLAGS)"; export CXXFLAGS; \
- AR="$(AR)"; export AR; \
- AS="$(AS)"; export AS; \
- CC_FOR_BUILD="$(CC_FOR_BUILD)"; export CC_FOR_BUILD; \
- DLLTOOL="$(DLLTOOL)"; export DLLTOOL; \
- LD="$(LD)"; export LD; \
- LDFLAGS="$(LDFLAGS)"; export LDFLAGS; \
- NM="$(NM)"; export NM; \
- RANLIB="$(RANLIB)"; export RANLIB; \
- WINDRES="$(WINDRES)"; export WINDRES; \
- OBJCOPY="$(OBJCOPY)"; export OBJCOPY; \
- OBJDUMP="$(OBJDUMP)"; export OBJDUMP; \
- echo Configuring stage 1 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} \
- --disable-intermodule --disable-coverage \
- --enable-languages="$(STAGE1_LANGUAGES)"; \
- cd .. ; \
- mv gcc stage1-gcc ; \
- $(STAMP) configure-stage1-gcc
+# We only want to compare .o files, so set this!
+objext = .o
# Real targets act phony if they depend on phony targets; this hack
# prevents gratuitous rebuilding of stage 1.
$(MAKE) all-bootstrap
$(STAMP) prebootstrap
-all-stage1-gcc: configure-stage1-gcc prebootstrap
- echo all-stage1-gcc > stage_last ; \
- r=`${PWD_COMMAND}`; export r; \
- s=`cd $(srcdir); ${PWD_COMMAND}`; export s; \
- mv stage1-gcc gcc ; \
- cd gcc && \
- $(MAKE) $(GCC_FLAGS_TO_PASS) \
- CFLAGS="$(STAGE1_CFLAGS)" && $(STAMP) ../all-stage1-gcc ; \
- result=$$? ; \
- cd .. ; \
- mv gcc stage1-gcc ; \
- exit $$result
-
-# TODO: Deal with STAGE_PREFIX (which is only for ada, incidentally)
-# Possibly pass --enable-werror-always (depending on --enable-werror);
-# that's what @stage2_werror_flag@ is for
-configure-stage2-gcc: all-stage1-gcc
- echo configure-stage2-gcc > stage_last ; \
- if [ -f stage2-gcc/Makefile ] ; then \
- $(STAMP) configure-stage2-gcc ; \
- exit 0; \
- else \
- true ; \
- fi ; \
- [ -d stage2-gcc ] || mkdir stage2-gcc; \
- mv stage2-gcc gcc ; \
- mv stage1-gcc prev-gcc ; \
- r=`${PWD_COMMAND}`; export r; \
- s=`cd $(srcdir); ${PWD_COMMAND}`; export s; \
- CONFIG_SHELL="$(SHELL)"; export CONFIG_SHELL; \
- TOPLEVEL_CONFIGURE_ARGUMENTS="$(TOPLEVEL_CONFIGURE_ARGUMENTS)"; export TOPLEVEL_CONFIGURE_ARGUMENTS; \
- CFLAGS="$(CFLAGS)"; export CFLAGS; \
- CXX="$(CXX)"; export CXX; \
- CXXFLAGS="$(CXXFLAGS)"; export CXXFLAGS; \
- AR="$(AR)"; export AR; \
- AS="$(AS)"; export AS; \
- DLLTOOL="$(DLLTOOL)"; export DLLTOOL; \
- LD="$(LD)"; export LD; \
- LDFLAGS="$(LDFLAGS)"; export LDFLAGS; \
- NM="$(NM)"; export NM; \
- RANLIB="$(RANLIB)"; export RANLIB; \
- WINDRES="$(WINDRES)"; export WINDRES; \
- OBJCOPY="$(OBJCOPY)"; export OBJCOPY; \
- OBJDUMP="$(OBJDUMP)"; export OBJDUMP; \
- CC="$(STAGE_CC_WRAPPER) $$r/prev-gcc/xgcc$(exeext) -B$$r/prev-gcc/ -B$(build_tooldir)/bin/"; export CC; \
- CC_FOR_BUILD="$(STAGE_CC_WRAPPER) $$r/prev-gcc/xgcc$(exeext) -B$$r/prev-gcc/ -B$(build_tooldir)/bin/"; export CC_FOR_BUILD; \
- echo Configuring stage 2 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@ ; \
- cd .. ; \
- mv gcc stage2-gcc ; \
- mv prev-gcc stage1-gcc ; \
- $(STAMP) configure-stage2-gcc
-
# Flags to pass to stage2 and later makes.
BOOT_CFLAGS= -g -O2
POSTSTAGE1_FLAGS_TO_PASS = \
CFLAGS="$(BOOT_CFLAGS)" \
ADAC="\$$(CC)"
-all-stage2-gcc: all-stage1-gcc configure-stage2-gcc
- echo all-stage2-gcc > stage_last ; \
- r=`${PWD_COMMAND}`; export r; \
- s=`cd $(srcdir); ${PWD_COMMAND}`; export s; \
- mv stage2-gcc gcc ; \
- mv stage1-gcc prev-gcc ; \
- cd gcc && \
- $(MAKE) $(GCC_FLAGS_TO_PASS) \
- CC="$(STAGE_CC_WRAPPER) $$r/prev-gcc/xgcc$(exeext) -B$$r/prev-gcc/ -B$(build_tooldir)/bin/" \
- CC_FOR_BUILD="$(STAGE_CC_WRAPPER) $$r/prev-gcc/xgcc$(exeext) -B$$r/prev-gcc/ -B$(build_tooldir)/bin/" \
- STAGE_PREFIX=$$r/prev-gcc/ \
- $(POSTSTAGE1_FLAGS_TO_PASS) && $(STAMP) ../all-stage2-gcc ; \
- result=$$? ; \
- cd .. ; \
- mv prev-gcc stage1-gcc ; \
- mv gcc stage2-gcc ; \
- exit $$result
-
-configure-stage3-gcc: all-stage2-gcc
- echo configure-stage3-gcc > stage_last ; \
- if [ -f stage3-gcc/Makefile ] ; then \
- $(STAMP) configure-stage3-gcc ; \
+# For stage 1:
+# * We force-disable intermodule optimizations, even if
+# --enable-intermodule was passed, since the installed compiler probably
+# can't handle them. Luckily, autoconf always respects
+# the last argument when conflicting --enable arguments are passed.
+# * Likewise, we force-disable coverage flags, since the installed compiler
+# probably has never heard of them.
+# * We build only C (and possibly Ada).
+
+[+ FOR bootstrap-stage +]
+.PHONY: new-stage[+id+]-start new-stage[+id+]-end
+
+new-stage[+id+]-start:
+ [ -f stage_last ] && $(MAKE) new-`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 +]
+
+new-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 +]
+
+# Bubble a bugfix through all the stages up to stage [+id+]. They
+# are remade, but not reconfigured. The next stage (if any) will not
+# be reconfigured as well.
+.PHONY: new-stage[+id+]-bubble
+new-stage[+id+]-bubble: [+ IF prev +]new-stage[+prev+]-bubble[+ ENDIF +]
+ @if [ -f all-stage[+id+]-gcc ] ; then \
+ echo Remaking stage [+id+] ; \
+ rm -f all-stage[+id+]-gcc ; \
+ $(MAKE) all-stage[+id+]-gcc [+ IF next +] && \
+ if [ -f configure-stage[+next+]-gcc ] ; then \
+ $(STAMP) configure-stage[+next+]-gcc ; \
+ fi [+ ENDIF next +]; \
+ else \
+ $(MAKE) all-stage[+id+]-gcc ; \
+ fi
+
+configure-stage[+id+]-gcc: [+ IF prev +] all-stage[+prev+]-gcc [+
+ ELSE +] prebootstrap [+ ENDIF prev +]
+ $(MAKE) new-stage[+id+]-start
+ @if [ -f stage[+id+]-gcc/Makefile ] ; then \
+ $(STAMP) configure-stage[+id+]-gcc ; \
exit 0; \
else \
true ; \
fi ; \
- [ -d stage3-gcc ] || mkdir stage3-gcc; \
- mv stage3-gcc gcc ; \
- mv stage2-gcc prev-gcc ; \
r=`${PWD_COMMAND}`; export r; \
s=`cd $(srcdir); ${PWD_COMMAND}`; export s; \
CONFIG_SHELL="$(SHELL)"; export CONFIG_SHELL; \
WINDRES="$(WINDRES)"; export WINDRES; \
OBJCOPY="$(OBJCOPY)"; export OBJCOPY; \
OBJDUMP="$(OBJDUMP)"; export OBJDUMP; \
+ GMPLIBS="$(HOST_GMPLIBS)"; export GMPLIBS; \
+ GMPINC="$(HOST_GMPINC)"; export GMPINC [+ IF prev +] ; \
CC="$(STAGE_CC_WRAPPER) $$r/prev-gcc/xgcc$(exeext) -B$$r/prev-gcc/ -B$(build_tooldir)/bin/"; export CC; \
- CC_FOR_BUILD="$(STAGE_CC_WRAPPER) $$r/prev-gcc/xgcc$(exeext) -B$$r/prev-gcc/ -B$(build_tooldir)/bin/"; export CC_FOR_BUILD; \
- echo Configuring stage 3 in gcc; \
+ CC_FOR_BUILD="$(STAGE_CC_WRAPPER) $$r/prev-gcc/xgcc$(exeext) -B$$r/prev-gcc/ -B$(build_tooldir)/bin/"; export CC_FOR_BUILD [+ ELSE +] ; \
+ CC="$(CC)"; export CC; \
+ CC_FOR_BUILD="$(CC_FOR_BUILD)"; export CC_FOR_BUILD [+ ENDIF prev +] ; \
+ echo Configuring stage [+id+] in gcc ; \
cd gcc || exit 1; \
case $(srcdir) in \
\.) \
libsrcdir="$$s/gcc";; \
esac; \
$(SHELL) $${libsrcdir}/configure \
- $(HOST_CONFIGARGS) $${srcdiroption} @stage2_werror_flag@ ; \
- cd .. ; \
- mv gcc stage3-gcc ; \
- mv prev-gcc stage2-gcc ; \
- $(STAMP) configure-stage3-gcc
+ $(HOST_CONFIGARGS) $${srcdiroption} \
+ [+extra_configure_flags+] && \
+ $(STAMP) ../configure-stage[+id+]-gcc
-all-stage3-gcc: all-stage2-gcc configure-stage3-gcc
- echo all-stage3-gcc > stage_last ; \
- r=`${PWD_COMMAND}`; export r; \
+all-stage[+id+]-gcc: configure-stage[+id+]-gcc
+ $(MAKE) new-stage[+id+]-start
+ @r=`${PWD_COMMAND}`; export r; \
s=`cd $(srcdir); ${PWD_COMMAND}`; export s; \
- mv stage2-gcc prev-gcc ; \
- mv stage3-gcc gcc ; \
cd gcc && \
- $(MAKE) $(GCC_FLAGS_TO_PASS) \
+ $(MAKE) $(GCC_FLAGS_TO_PASS) [+ IF prev +] \
CC="$(STAGE_CC_WRAPPER) $$r/prev-gcc/xgcc$(exeext) -B$$r/prev-gcc/ -B$(build_tooldir)/bin/" \
CC_FOR_BUILD="$(STAGE_CC_WRAPPER) $$r/prev-gcc/xgcc$(exeext) -B$$r/prev-gcc/ -B$(build_tooldir)/bin/" \
- STAGE_PREFIX=$$r/prev-gcc/ \
- $(POSTSTAGE1_FLAGS_TO_PASS) && $(STAMP) ../all-stage3-gcc \
- result=$$? ; \
- cd .. ; \
- mv prev-gcc stage2-gcc ; \
- mv gcc stage3-gcc ; \
- exit $$result
+ STAGE_PREFIX=$$r/stage[+prev+]-gcc/ [+ ENDIF prev +] \
+ [+extra_make_flags+] && $(STAMP) ../all-stage[+id+]-gcc
-# We only want to compare .o files, so set this!
-objext = .o
-
-compare: all-stage3-gcc
- r=`${PWD_COMMAND}`; export r; \
+[+ IF compare-target +]
+[+compare-target+]: all-stage[+id+]-gcc
+ [ -f stage_last ] && $(MAKE) new-`cat stage_last`-end || :
+ @r=`${PWD_COMMAND}`; export r; \
s=`cd $(srcdir); ${PWD_COMMAND}`; export s; \
rm -f .bad_compare ; \
- cd stage3-gcc; \
+ cd stage[+id+]-gcc; \
files=`find . -name "*$(objext)" -print` ; \
cd .. ; \
for file in $${files} ; do \
- f1=$$r/stage2-gcc/$$file; f2=$$r/stage3-gcc/$$file; \
+ f1=$$r/stage[+prev+]-gcc/$$file; f2=$$r/stage[+id+]-gcc/$$file; \
@do_compare@ > /dev/null 2>&1; \
test $$? -eq 1 && echo $$file differs >> .bad_compare || true; \
done ; \
else \
true; \
fi ; \
- $(STAMP) compare
-
-.PHONY: new-bootstrap
-# This target exists so that everything can be made in one pass.
-# 'all-gcc' has to avoid stomping on the bootstrap-generated gcc for
-# this to work.
-new-bootstrap: compare
- mv stage3-gcc gcc ; \
- $(MAKE) all ; \
- mv gcc stage3-gcc
-
-new-cleanstrap:
- rm -rf configure-stage1-gcc all-stage1-gcc stage1-gcc \
- configure-stage2-gcc all-stage2-gcc stage2-gcc \
- configure-stage3-gcc all-stage3-gcc stage3-gcc \
- compare
- $(MAKE) new-bootstrap
-
-new-restage1:
- rm -rf all-stage1-gcc \
- configure-stage2-gcc all-stage2-gcc stage2-gcc \
- configure-stage3-gcc all-stage3-gcc stage3-gcc \
- compare
- $(MAKE) all-stage1-gcc
-
-new-restage2: all-stage1-gcc
- rm -rf all-stage2-gcc \
- configure-stage3-gcc all-stage3-gcc stage3-gcc \
- compare
- $(MAKE) all-stage2-gcc
-
-new-restage3: all-stage2-gcc
- rm -rf all-stage3-gcc compare
- $(MAKE) compare
+ $(STAMP) [+compare-target+]
+[+ ENDIF compare-target +]
+
+[+ IF bootstrap-target +]
+.PHONY: [+bootstrap-target+]
+[+bootstrap-target+]:
+ $(MAKE) new-stage[+id+]-bubble [+
+ IF compare-target +] [+compare-target+] [+
+ ENDIF compare-target +] \
+ new-stage[+id+]-start all new-stage[+id+]-end
+[+ ENDIF bootstrap-target +]
+
+.PHONY: new-restage[+id+] distclean-stage[+id+]
+
+distclean-stage[+id+]: [+ IF next +] distclean-stage[+next+] [+ ENDIF next +]
+ [ -f stage_last ] && $(MAKE) new-`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 +]
+
+new-restage[+id+]: [+ IF next +] distclean-stage[+next+] [+ ENDIF next +]
+ rm -rf all-stage[+id+]-gcc [+
+ IF compare-target +][+compare-target+] [+ ENDIF compare-target +]
+ $(MAKE) [+
+ IF compare-target +][+compare-target+] [+
+ ELSE +] all-stage[+id+]-gcc [+ ENDIF compare-target +]
+
+[+ IF cleanstrap-target +]
+.PHONY: [+cleanstrap-target+]
+[+cleanstrap-target+]: distclean-stage1 [+bootstrap-target+]
+[+ ENDIF cleanstrap-target +]
+
+[+ ENDFOR bootstrap-stage +]
# --------------------------------------
# Dependencies between different modules
test -z "$INSTALL_DATA" && INSTALL_DATA='${INSTALL} -m 644'
+echo $ac_n "checking whether ln -s works""... $ac_c" 1>&6
+echo "configure:738: checking whether ln -s works" >&5
+if eval "test \"`echo '$''{'ac_cv_prog_LN_S'+set}'`\" = set"; then
+ echo $ac_n "(cached) $ac_c" 1>&6
+else
+ rm -f conftestdata
+if ln -s X conftestdata 2>/dev/null
+then
+ rm -f conftestdata
+ ac_cv_prog_LN_S="ln -s"
+else
+ ac_cv_prog_LN_S=ln
+fi
+fi
+LN_S="$ac_cv_prog_LN_S"
+if test "$ac_cv_prog_LN_S" = "ln -s"; then
+ echo "$ac_t""yes" 1>&6
+else
+ echo "$ac_t""no" 1>&6
+fi
+
# Autoconf M4 include file defining utility macros for complex Canadian
# cross builds.
# 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:1903: checking for $ac_word" >&5
+echo "configure:1924: 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
# 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:1933: checking for $ac_word" >&5
+echo "configure:1954: 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
# 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:1984: checking for $ac_word" >&5
+echo "configure:2005: 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
fi
echo $ac_n "checking whether the C compiler ($CC $CFLAGS $LDFLAGS) works""... $ac_c" 1>&6
-echo "configure:2016: checking whether the C compiler ($CC $CFLAGS $LDFLAGS) works" >&5
+echo "configure:2037: checking whether the C compiler ($CC $CFLAGS $LDFLAGS) works" >&5
ac_ext=c
# CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
cat > conftest.$ac_ext << EOF
-#line 2027 "configure"
+#line 2048 "configure"
#include "confdefs.h"
main(){return(0);}
EOF
-if { (eval echo configure:2032: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:2053: \"$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
{ 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""... $ac_c" 1>&6
-echo "configure:2058: checking whether the C compiler ($CC $CFLAGS $LDFLAGS) is a cross-compiler" >&5
+echo "configure:2079: checking whether the C compiler ($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""... $ac_c" 1>&6
-echo "configure:2063: checking whether we are using GNU C" >&5
+echo "configure:2084: checking whether we are using GNU C" >&5
if eval "test \"`echo '$''{'ac_cv_prog_gcc'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
yes;
#endif
EOF
-if { ac_try='${CC-cc} -E conftest.c'; { (eval echo configure:2072: \"$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:2093: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; } | egrep yes >/dev/null 2>&1; then
ac_cv_prog_gcc=yes
else
ac_cv_prog_gcc=no
ac_save_CFLAGS="$CFLAGS"
CFLAGS=
echo $ac_n "checking whether ${CC-cc} accepts -g""... $ac_c" 1>&6
-echo "configure:2091: checking whether ${CC-cc} accepts -g" >&5
+echo "configure:2112: checking whether ${CC-cc} accepts -g" >&5
if eval "test \"`echo '$''{'ac_cv_prog_cc_g'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
# Extract the first word of "${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:2127: checking for $ac_word" >&5
+echo "configure:2148: 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
# 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:2159: checking for $ac_word" >&5
+echo "configure:2180: 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
fi
echo $ac_n "checking whether compiler driver understands Ada""... $ac_c" 1>&6
-echo "configure:2192: checking whether compiler driver understands Ada" >&5
+echo "configure:2213: checking whether compiler driver understands Ada" >&5
if eval "test \"`echo '$''{'acx_cv_cc_gcc_supports_ada'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
fi
echo $ac_n "checking how to compare bootstrapped objects""... $ac_c" 1>&6
-echo "configure:2225: checking how to compare bootstrapped objects" >&5
+echo "configure:2246: checking how to compare bootstrapped objects" >&5
if eval "test \"`echo '$''{'gcc_cv_prog_cmp_skip'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
CFLAGS="$CFLAGS $gmpinc"
# Check GMP actually works
echo $ac_n "checking for correct version of gmp.h""... $ac_c" 1>&6
-echo "configure:2298: checking for correct version of gmp.h" >&5
+echo "configure:2319: checking for correct version of gmp.h" >&5
cat > conftest.$ac_ext <<EOF
-#line 2300 "configure"
+#line 2321 "configure"
#include "confdefs.h"
#include "gmp.h"
int main() {
; return 0; }
EOF
-if { (eval echo configure:2311: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:2332: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
rm -rf conftest*
echo "$ac_t""yes" 1>&6
else
if test x"$have_gmp" = xyes; then
echo $ac_n "checking for mpf_init in -lgmp""... $ac_c" 1>&6
-echo "configure:2324: checking for mpf_init in -lgmp" >&5
+echo "configure:2345: checking for mpf_init in -lgmp" >&5
saved_LIBS="$LIBS"
LIBS="$LIBS $gmplibs"
cat > conftest.$ac_ext <<EOF
-#line 2329 "configure"
+#line 2350 "configure"
#include "confdefs.h"
#include <gmp.h>
int main() {
mpf_t n; mpf_init(n);
; return 0; }
EOF
-if { (eval echo configure:2336: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:2357: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
rm -rf conftest*
echo "$ac_t""yes" 1>&6
else
# Extract the first word of "$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:2798: checking for $ac_word" >&5
+echo "configure:2819: checking for $ac_word" >&5
if eval "test \"`echo '$''{'ac_cv_prog_DEFAULT_YACC'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
# Extract the first word of "$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:2833: checking for $ac_word" >&5
+echo "configure:2854: checking for $ac_word" >&5
if eval "test \"`echo '$''{'ac_cv_prog_DEFAULT_M4'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
# Extract the first word of "$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:2868: checking for $ac_word" >&5
+echo "configure:2889: checking for $ac_word" >&5
if eval "test \"`echo '$''{'ac_cv_prog_DEFAULT_LEX'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
# Extract the first word of "${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:3443: checking for $ac_word" >&5
+echo "configure:3464: 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
# 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:3476: checking for $ac_word" >&5
+echo "configure:3497: checking for $ac_word" >&5
if eval "test \"`echo '$''{'ac_cv_prog_ncn_cv_AR'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
# Extract the first word of "${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:3515: checking for $ac_word" >&5
+echo "configure:3536: 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
# 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:3548: checking for $ac_word" >&5
+echo "configure:3569: checking for $ac_word" >&5
if eval "test \"`echo '$''{'ac_cv_prog_ncn_cv_AS'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
# Extract the first word of "${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:3587: checking for $ac_word" >&5
+echo "configure:3608: 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
# 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:3620: checking for $ac_word" >&5
+echo "configure:3641: checking for $ac_word" >&5
if eval "test \"`echo '$''{'ac_cv_prog_ncn_cv_DLLTOOL'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
# Extract the first word of "${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:3659: checking for $ac_word" >&5
+echo "configure:3680: 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
# 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:3692: checking for $ac_word" >&5
+echo "configure:3713: checking for $ac_word" >&5
if eval "test \"`echo '$''{'ac_cv_prog_ncn_cv_LD'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
# Extract the first word of "${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:3731: checking for $ac_word" >&5
+echo "configure:3752: 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
# 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:3764: checking for $ac_word" >&5
+echo "configure:3785: checking for $ac_word" >&5
if eval "test \"`echo '$''{'ac_cv_prog_ncn_cv_NM'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
# Extract the first word of "${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:3803: checking for $ac_word" >&5
+echo "configure:3824: 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
# 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:3836: checking for $ac_word" >&5
+echo "configure:3857: checking for $ac_word" >&5
if eval "test \"`echo '$''{'ac_cv_prog_ncn_cv_RANLIB'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
# Extract the first word of "${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:3875: checking for $ac_word" >&5
+echo "configure:3896: 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
# 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:3908: checking for $ac_word" >&5
+echo "configure:3929: checking for $ac_word" >&5
if eval "test \"`echo '$''{'ac_cv_prog_ncn_cv_WINDRES'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
# Extract the first word of "${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:3947: checking for $ac_word" >&5
+echo "configure:3968: 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
# 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:3980: checking for $ac_word" >&5
+echo "configure:4001: checking for $ac_word" >&5
if eval "test \"`echo '$''{'ac_cv_prog_ncn_cv_OBJCOPY'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
# Extract the first word of "${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:4019: checking for $ac_word" >&5
+echo "configure:4040: 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
# 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:4052: checking for $ac_word" >&5
+echo "configure:4073: checking for $ac_word" >&5
if eval "test \"`echo '$''{'ac_cv_prog_ncn_cv_OBJDUMP'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
# Extract the first word of "${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:4101: checking for $ac_word" >&5
+echo "configure:4122: 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
# 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:4134: checking for $ac_word" >&5
+echo "configure:4155: 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) $ac_c" 1>&6
else
# Extract the first word of "${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:4173: checking for $ac_word" >&5
+echo "configure:4194: 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
# 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:4206: checking for $ac_word" >&5
+echo "configure:4227: 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) $ac_c" 1>&6
else
# Extract the first word of "${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:4245: checking for $ac_word" >&5
+echo "configure:4266: 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
# 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:4278: checking for $ac_word" >&5
+echo "configure:4299: 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) $ac_c" 1>&6
else
# Extract the first word of "${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:4317: checking for $ac_word" >&5
+echo "configure:4338: 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
# 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:4350: checking for $ac_word" >&5
+echo "configure:4371: 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) $ac_c" 1>&6
else
# Extract the first word of "${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:4389: checking for $ac_word" >&5
+echo "configure:4410: 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
# 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:4422: checking for $ac_word" >&5
+echo "configure:4443: 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) $ac_c" 1>&6
else
# Extract the first word of "${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:4461: checking for $ac_word" >&5
+echo "configure:4482: 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
# 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:4494: checking for $ac_word" >&5
+echo "configure:4515: 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) $ac_c" 1>&6
else
# Extract the first word of "${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:4533: checking for $ac_word" >&5
+echo "configure:4554: 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
# 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:4566: checking for $ac_word" >&5
+echo "configure:4587: 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) $ac_c" 1>&6
else
NM_FOR_TARGET=${NM_FOR_TARGET}${extra_nmflags_for_target}
echo $ac_n "checking whether to enable maintainer-specific portions of Makefiles""... $ac_c" 1>&6
-echo "configure:4651: checking whether to enable maintainer-specific portions of Makefiles" >&5
+echo "configure:4672: checking whether to enable maintainer-specific portions of Makefiles" >&5
# Check whether --enable-maintainer-mode or --disable-maintainer-mode was given.
if test "${enable_maintainer_mode+set}" = set; then
enableval="$enable_maintainer_mode"
esac
+# It makes debugging easier if we create as symlinks the stage directories
+# 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""... $ac_c" 1>&6
+echo "configure:4719: checking if symbolic links between directories work" >&5
+if eval "test \"`echo '$''{'gcc_cv_prog_ln_s_dir'+set}'`\" = set"; then
+ echo $ac_n "(cached) $ac_c" 1>&6
+else
+ if test "${LN_S}" = "ln -s" \
+ && mkdir confdir.s1 \
+ && ln -s confdir.s1 confdir.s2 \
+ && echo timestamp1 > confdir.s1/conftest.1 \
+ && cmp confdir.s1/conftest.1 confdir.s2/conftest.1 \
+ && echo timestamp2 > confdir.s2/conftest.2 \
+ && cmp confdir.s1/conftest.2 confdir.s1/conftest.2 \
+ && rm -f confdir.s2; then
+ gcc_cv_prog_ln_s_dir=yes
+else
+ gcc_cv_prog_ln_s_dir=yes
+fi
+rm -rf confdir.s1 confdir.s2
+fi
+
+echo "$ac_t""$gcc_cv_prog_ln_s_dir" 1>&6
+
+case ${gcc_cv_prog_ln_s_dir} in
+ yes)
+ CREATE_LINK_TO_DIR='ln -s $$1 $$2'
+ UNDO_LINK_TO_DIR='rm -f $$1' ;;
+ *)
+ CREATE_LINK_TO_DIR='mv $$1 $$2'
+ UNDO_LINK_TO_DIR='mv $$1 $$2' ;;
+esac
+
+
+
# Enable -Werror in bootstrap stage2 and later.
# Change the default to "no" on release branches.
# Check whether --enable-werror or --disable-werror was given.
s%@INSTALL_PROGRAM@%$INSTALL_PROGRAM%g
s%@INSTALL_SCRIPT@%$INSTALL_SCRIPT%g
s%@INSTALL_DATA@%$INSTALL_DATA%g
+s%@LN_S@%$LN_S%g
s%@TOPLEVEL_CONFIGURE_ARGUMENTS@%$TOPLEVEL_CONFIGURE_ARGUMENTS%g
s%@build_subdir@%$build_subdir%g
s%@host_subdir@%$host_subdir%g
s%@MAINTAINER_MODE_FALSE@%$MAINTAINER_MODE_FALSE%g
s%@MAINT@%$MAINT%g
s%@stage1_cflags@%$stage1_cflags%g
+s%@CREATE_LINK_TO_DIR@%$CREATE_LINK_TO_DIR%g
+s%@UNDO_LINK_TO_DIR@%$UNDO_LINK_TO_DIR%g
s%@stage2_werror_flag@%$stage2_werror_flag%g
CEOF
# Get 'install' or 'install-sh' and its variants.
AC_PROG_INSTALL
+AC_PROG_LN_S
sinclude(config/acx.m4)
esac
AC_SUBST(stage1_cflags)
+# It makes debugging easier if we create as symlinks the stage directories
+# gcc for stageN-gcc and stage-prev for stage(N-1). In case this is not
+# possible, however, we can resort to mv.
+AC_CACHE_CHECK([if symbolic links between directories work],
+[gcc_cv_prog_ln_s_dir],
+[if test "${LN_S}" = "ln -s" \
+ && mkdir confdir.s1 \
+ && ln -s confdir.s1 confdir.s2 \
+ && echo timestamp1 > confdir.s1/conftest.1 \
+ && cmp confdir.s1/conftest.1 confdir.s2/conftest.1 \
+ && echo timestamp2 > confdir.s2/conftest.2 \
+ && cmp confdir.s1/conftest.2 confdir.s1/conftest.2 \
+ && rm -f confdir.s2; then
+ gcc_cv_prog_ln_s_dir=yes
+else
+ gcc_cv_prog_ln_s_dir=yes
+fi
+rm -rf confdir.s1 confdir.s2])
+
+case ${gcc_cv_prog_ln_s_dir} in
+ yes)
+ CREATE_LINK_TO_DIR='ln -s $$1 $$2'
+ UNDO_LINK_TO_DIR='rm -f $$1' ;;
+ *)
+ CREATE_LINK_TO_DIR='mv $$1 $$2'
+ UNDO_LINK_TO_DIR='mv $$1 $$2' ;;
+esac
+AC_SUBST(CREATE_LINK_TO_DIR)
+AC_SUBST(UNDO_LINK_TO_DIR)
+
# Enable -Werror in bootstrap stage2 and later.
# Change the default to "no" on release branches.
AC_ARG_ENABLE(werror,
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