gcc:

        * config/darwin.h (LINK_COMMAND_SPEC_A): Revise sanitizer specs to
        include sanitize(undefined).

libsanitizer:

        * ubsan/Makefile.am (libubsan_la_LIBADD): Revise to omit
        libinterception.la for Darwin.
        * ubsan/Makefile.in: Regenerate.

From-SVN: r202144