* config.gcc (*-*-linux*): Don't define HAVE_ATEXIT or BSTRING.
	* tm.texi (EXIT_BODY): Update documentation.
	* config/freebsd.h, config/netware.h, config/arm/coff.h,
	config/arm/conix-elf.h, config/arm/unknown-elf.h,
	config/d30v/d30v.h, config/mcore/mcore.h, config/pj/pj.h,
	sparc/sp86x-aout.h: Remove definitions of HAVE_ATEXIT (some
	commented out) and associated comments.

f:
	* com.c [VMS]: Remove definition of BSTRING.

From-SVN: r38370