* configure.in: If not NO_MINUS_C_MINUS_O, substitute
	OUTPUT_OPTION with '-o $@'.  Make zlibdir, zlibinc relative to
	top level.  Kill oldstyle_subdirs.  Do not include
	$srcdir/$s/Makefile.in in all_lang_makefiles, but do include
	$outputs.  Do not run configure.lang from config.status.
	Rearrange warning-flag logic to correspond to what the
	makefile wants.  Put special vax stage1 options in
	@stage1_flags@ not @stage1_warn_cflags@.  Don't do anything
	with extra_c_objs, extra_cxx_objs, or extra_cpp_objs.
	(--enable-c-cpplib): AC_SUBST(maybe_cpplib) with "libcpp.a" if
	switch is given, nothing otherwise.
	* configure.lang: Delete.

        * Makefile.in: Expunge all traces of extra_c_objs,
        extra_cxx_objs, and extra_cpp_objs.  Set MAYBE_CPPLIB from
        @maybe_cpplib@. Add $(MAYBE_CPPLIB) to C_AND_OBJC_OBJS.  Set
        warning options via a three level scheme so that -pedantic and
        -Wtraditional are not used for non-C front ends: LOOSE_WARN,
        STRICT1_WARN, STRICT2_WARN -> $(@D)-warn, GCC_WARN_CFLAGS ->
        WARN_CFLAGS.  Distinguish STAGE1_CFLAGS from BOOT_CFLAGS.
	Add -I$(@D) and -I$(srcdir)/$(@D) to INCLUDES.
	Set OUTPUT_OPTION, ZLIB, ZLIBINC.  Do not set P,
        LANG_FLAGS_TO_PASS.  Add OUTPUT_OPTION to all object-file
        generation rules.  Wrap all rules that change the current
        directory in parentheses; pmake doesn't spawn a new shell for
        each command.  Expunge all references to $(P).  When one
        command depends on another and they're run all at once, use &&
        to separate them, not ;.  Add libgcc_s$(SHLIB_EXT) to files
        deleted on make clean.  Force OUTPUT_OPTION='-o $@' in stage2
        and beyond.

	* cp/Make-lang.in, f/Make-lang.in, java/Make-lang.in,
	objc/Make-lang.in: Wrap all rules that change the current
	directory in parentheses.  Expunge all references to $(P).
	When one command depends on another and they're run all at
	once, use && to separate them, not ;.  Add OUTPUT_OPTION to
	all object-file generation rules.  Delete obsolete variables.
	Move all build rules here from the corresponding Makefile.in and
	adapt to the new environment.

	* cp/Makefile.in, f/Makefile.in, java/Makefile.in, objc/Makefile.in:
	Delete.

	* cp/config-lang.in, f/config-lang.in, java/config-lang.in:
	Delete outputs= line.

From-SVN: r37088