Remove CLASS_LIKELY_SPILLED_P
(STARTFILE_SPEC): Insert crtbegin.o in correct place, and correctversions of values-X?.o
(SWITCH_TAKES_ARG): Extend DEFAULT_SWITCH_TAKES_ARG, not replace.
(CPP_SPEC): Add -Di386, and correctly include extra directories.
Define HAVE_ATEXIT in ELF mode for global destructors.

From-SVN: r12647