Problems with DEFSYSTEM-DEPENDS-ON

Attila Lendvai attila at lendvai.name
Mon Apr 9 16:17:26 UTC 2018


> A cheesy fix would simply be to wrap it in IGNORE-ERRORS. But it might cause
> errors in its present form.


i've learned, painfully, that indiscriminate ignore-errors will almost
always bite you back (in the form of wasted debugging time), no matter
how innocent they look.


> This really is more a QL issue than an ASDF one (although it illustrates an
> issue with wrapping errors, IMO).


while this is true, the implementation of QL requires a reliable way
to hook into the internal state of various versions of ASDF (namely,
into the situation when ASDF is looking for a system, and not finding
it will lead to an error without QL intervention). if i understand it
correctly, this is the crux of this issue.

-- 
• attila lendvai
• PGP: 963F 5D5F 45C7 DFCD 0A39
--
“A general State education is a mere contrivance for molding people to
be exactly like one another; and as the mold in which it casts them is
that which pleases the dominant power in the government […]; it
establishes a despotism over the mind, leading by a natural tendency
to one over the body.”
	— John Stuart Mill (1806–1873), 'On Liberty' (1869)



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