2006-02-20  Paolo Bonzini  <bonzini@gnu.org>

	PR bootstrap/25670

	* Makefile.tpl ([+compare-target+]): Print explanation messages.

	* Makefile.def (ADAFLAGS, BOOT_ADAFLAGS, LANGUAGES): New flags_to_pass.
	* Makefile.tpl (BASE_FLAGS_TO_PASS): Support optional flags_to_pass.
	(EXTRA_GCC_FLAGS): Remove ADAFLAGS, BOOT_ADAFLAGS, LANGUAGES,
	BUILD_PREFIX, BUILD_PREFIX_1.
	* configure.in: (BUILD_PREFIX, BUILD_PREFIX_1): Don't substitute.

	* Makefile.def (bootstrap stage 1): Pass LIBCFLAGS too.
	* Makefile.tpl (POSTSTAGE1_FLAGS_TO_PASS): Override LIBCFLAGS too.

	* Makefile.tpl (configure-stage[+id+]-[+prefix+][+module+],
	all-stage[+id+]-[+prefix+][+module+], : Use $(current_stage) instead
	of `cat stage_current`.  Always provide the `r' and `s' variables.
	(clean-stage[+id+]-[+prefix+][+module+]): Likewise, and make it into
	a single shell execution.
	(configure-[+prefix+][+module+], all-[+prefix+][+module+]): For
	bootstrapped modules, make the stage1 module if the build was not
	started yet, else build the current stage.
	(all-host, all-target): Omit bootstrapped modules (if bootstrapping).
	(all-build, all-host, all-target, [+make_target+]-host,
	[+make_target+]-target): Do not use \-continued lines.
	(target modules): Depend on stage_last, not all-gcc, if bootstrapping.
	(current_stage, restrap, stage_last): New.

	* Makefile.in: Regenerate.
	* configure: Regenerate.

gcc:
2006-02-20  Paolo Bonzini  <bonzini@gnu.org>

	PR bootstrap/25476

	* Makefile.in (LDFLAGS): Define from autoconf substitution.

	* Makefile.in (BOOTSTRAPPING): New.
	(quickstrap): New definition if BOOTSTRAPPING=yes.

	* Makefile.in (CONFIG_LANGUAGES): Substitute all_selected_languages.
	* configure.ac: Substitute all_selected_languages with the languages
	that were configured.  For all the other variables except
	lang_specs_files, include all the languages in the tree.
	* configure: Regenerate.
	
	* Makefile.in (stmp-fixinc): Copy includes from the prev-gcc directory,
	if there is one.  Run the commands to run fixincludes in the same
	subshell.

	* doc/makefile.texi: Document new makefile targets from toplevel bootstrap.
	* doc/install.texi: Document exact conventions for searching target tools.
	Document --with-build-time-tools.  Document toplevel bootstrap.  Document
	something more about building an Ada cross-compiler.  Don't list GNU Make
	requirements which affect all platforms.

From-SVN: r111295