Let ASDF follow symlinks when looking up systems / .asd files

[Ambrevar]

If I symlink a Common Lisp project to ~/common-lisp for instance, I can load the .asd with SBCL but not with CCL. It seems that ASDF in CCL does not follow symlinks (I haven't checked).

I could be an issue with my system's CCL:

• OS: Guix
• CCL version: 1.11.5
• (asdf:asdf-version): 3.1.5.

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[xrme]

I remember this coming up before, and I think it was an issue in ASDF.

https://gitlab.common-lisp.net/asdf/asdf/merge_requests/27 seems like it is in the area.

ASDF 3.1.5 is the version bundled with CCL 1.11.5, so you could try an updated ASDF to see if that helps your situation.

[Ambrevar]

Could very well be (sorry, no time to test at the moment). Which version is to be expected in 1.12?

[xrme]

Currently, 1.12-dev has ASDF 3.2.0. I remember being hesitant about including 3.3.1 for some reason I no longer remember.

[Ambrevar]

I've just tried updating ASDF to 3.3.3 by running git clone .../asdf in ~/.common-lisp. From a REPL:

(asdf:asdf-version)
"3.3.3"

But this does not fix the issue. Maybe the embedded ASDF has to be replaced? According to ASDF documentation, the above should be enough.

[Ambrevar]

Tried again on 1.12, the issue persists.

[q3cpma]

Same here with (asdf:asdf-version) showing "3.3.5".

[fosskers]

Note that this is still an issue. Here's a compatibility chart:

Implementation	ASDF Version	Follows symlinks?
CCL	3.3.3	No
SBCL	3.3.1	Yes
ECL	3.1.8.8	Yes
ABCL	3.3.6	Yes
Clasp	3.3.6	No

[fosskers]

See also:

https://github.com/Clozure/ccl/blob/master/tools/asdf.lisp#L3227-L3228