0.6.12.7.flaky1:

0.6.12.7.flaky1:
	(This system state is seriously screwed up. It did build,
		both on Linux and on OpenBSD, but signalled an
		error after writing out sbcl.core on OpenBSD, and
		although it runs a little both on Linux and on
		OpenBSD, it hangs in the regression tests. It
		also has some temporary hacks marked REMOVEME,
		including one which suppresses PURIFY when
		building the system (!).)
	made the system build on OpenBSD again..
	..stubbed stuff out as a quick fix to the problem of FFI to
		64-bit stat.st_size
	tried to make the system run on OpenBSD again..
	..initialized current_dynamic_space, since it's now used
		instead of DYNAMIC_SPACE_START in PURIFY
	..added new assertions about GENCGC alloc_region stuff being
		reset when it should be
	renamed Lisp-level struct stat stuff to struct wrapped_stat
	tried to tidy up Lisp-level stat stuff; removed mysterious
		(STRING= NAME "") behavior from UNIX-STAT
	added slam.sh to help in low-level compile-and-try cycle
	pulled alloc_region-is-reset logic out into separate
		functions, and added more assertions on it (hunting
		for a bug which broke the old assertions)
	renamed gc_alloc_large to gc_alloc_possibly_large, and
		gc_quick_alloc_large_unboxed to
		gc_quick_alloc_unboxed_possibly_large
	enabled various GC checks, e.g. gencgc_zero_check=1
	deleted unused (and bizarre..) gencgc_verify_zero_fill()
	turned off PURIFY in order to get the system to build, since
		PURIFY seems to be misbehaving (leaving INIT-FUNCTION
		above the cutoff address..)