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	Add #undefs for these.
	Dyke out code requesting -lXbsd and HAVE_RANDOM for XFREE386.
	* xfns.c (Fx_open_connection): Test HAVE_XRMSETDATABASE instead of
	NO_XRM_SET_DATABASE; the latter isn't used any more.
	* m/delta88k, m/tekXD88.h, s/linux.h, s/usg5-4-2.h (HAVE_RANDOM):
	Dyke out these #definitions; to avoid conflict with autoconf.