Makefile.in (INTERFACE): New, set to 2.

Makefile.in (INTERFACE): New, set to 2.

#
	* Makefile.in (INTERFACE): New, set to 2.
	(ARLIB): Set to libstdc++.a.$(VERSION)
	(ARLINK, MARLINK): New macros.
	(LIBS): Add $(ARLINK).
	($(ARLINK), marlink): New targets.
	(install): Don't check $(libsubdir). Handle versioned libraries.
	* config/linux.ml (ARLIB, MARLINK, SHLIB, MSHLINK): New macros.
	(LIBS): Add marlink $(ARLINK).
	* config/aix.ml (ARLIB): Set to libstdc++-ar.a.$(VERSION)
	(ARLINK): New macros.
	(BUILD_LIBS): Add $(ARLINK).
	* config/dec-osf.ml (LIBS): Add $(ARLINK).
	* config/elf.ml (LIBS): Likewise.
	* config/elfshlibm.ml (LIBS): Likewise.
	* config/hpux.ml (LIBS): Likewise.
	* config/iris5.ml (LIBS): Likewise.
	* config/sol2shm.ml (LIBS): Likewise.
	* config/sunos4.ml (LIBS): Likewise.
	* configure.in: Use ${topsrcdir}/config.if to put
	LIBSTDCXX_INTERFACE, CXX_INTERFACE, LIBC_INTERFACE in
	${package_makefile_frag}.

From-SVN: r22117