add "asdf:" in front of "defsystem" to compile with no error

[vindarel]

so that we can C-c C-c the defsystem with no error like before.

otherwise we get

The function [first occurence of :depends-on] is undefined

It works back with

(asdf:defsystem ...

or by adding back the lines that were suppressed in commit d5dc886 "use ASDF3 to be modern" one month ago.

This works back for me. Cheers, thanks for the stuff, please make some noise to promote CL21 :) (I try, and feeling alone)

[fukamachi]

Unfortunately, it’s not recommended by ASDF.

System definition files are loaded with the current package bound to the package :asdf-user, that uses the packages :cl, :asdf and :uiop. Therefore, you don't need to and you SHOULD NOT specify cl:, asdf: or uiop: prefixes when referring to symbols in these respective packages. It is considered bad form to do so, unless you changed the package, and even then, your package should probably use these packages, too. In particular you SHOULD NOT to write (asdf:defsystem "foobar" ...) instead of (defsystem "foobar" ...). Also, you SHOULD NOT use (in-package ...) or (defpackage ...) if all you do can legitimately be done in package ASDF-USER.

https://github.com/roswell/asdf/blob/master/doc/best_practices.md#trivial_packaging

[vindarel]

Ok, thanks !