* Makerules (libtypes, object-suffixes): New variables.
(libtype.*, CFLAGS-*, CPPFLAGS-*): New variables for each object
suffix.
(CFLAGS, CPPFLAGS): Append $(C{,CPP}FLAGS-$(suffix $@)).
(%.so, %.po, %.go): New compilation rules for %.S, %.s, %.c.
(close-check-inhibit-asm): Append a semicolon.
(sysd-rules): Generate rules for each object suffix.
(compile.S, compile.c): Always assume gcc.
(OUTPUT_OPTION): Define unconditionally.
(+make-deps): In generated rule, produce a dependent for each
object suffix.
(.SUFFIXES): Add $(object-suffixes) in place of .o.
(.PRECIOUS): Make all suffix flavors precious.
($(libc.a)): Target removed.
(lib): Depend on each enabled libtype.
(libobjs, objects, objs): Depend on all the enabled object flavors.
(lib%.a): New pattern rule.
[$(build-shared)=yes] (lib%.so: lib%_pic.a): New pattern rule.
(stamp-$(subdir)): Rewritten to a pattern rule for stamp.%-$(subdir)
to make one for each flavor; library dep rule likewise rewritten.
($(libc.a)(__.SYMDEF)): Target replaced with one target for each
flavor.
(symdef.%): New pattern rule; helper for __.SYMDEF targets.
(installed-libcs): New variable.
(install): Depend on that instead of
$(libdir)/lib$(libprefix)$(libc-name).a;
that file's rule rewritten to make each enabled libtype.
(install-lib.so): New variable, filters lib%.so from $(install-lib).
(install-lib): Filter out lib%.so after setting install-lib.so.
[$(build-shared)=yes] (install): Install $(install-lib.so).
(common-mostlyclean): Remove all flavors of objects.
