Makefile.in (BASE_FLAGS_TO_PASS): Don't pass PICFLAG and PICFLAG_FOR_TARGET.

Makefile.in (BASE_FLAGS_TO_PASS): Don't pass PICFLAG and PICFLAG_FOR_TARGET.

        * Makefile.in (BASE_FLAGS_TO_PASS): Don't pass PICFLAG and
        PICFLAG_FOR_TARGET.
        (EXTRA_TARGET_FLAGS): Don't pass PICFLAG_FOR_TARGET.
        * configure: Emit a definition for the new macro enable_shared
        into each Makefile.
        * config/mh-sparcpic (PICFLAG): Define to properly according
        to current multilib configuration.
        * config/mt-sparcpic (PICFLAG_FOR_TARGET): Define to properly
        according to current multilib configuration.

From-SVN: r17680