(quicklisp:quickload :any-library) fails, ECL 11.1.1, Windows about quicklisp-client

[quicklisp]

Why does it fail?

[avodonosov]

Sorry, that's all info I have for now. I hope maybe Juan Jose will be able to quickly understand it.

If I have more info I will report here.

[avodonosov]

Tracked it down to the functino find-valid-system-index in the file local-projects.lisp.

It tries to do

(when (and probed
           (<= (directory-write-date pathname)
               (file-write-date probed)))
  probed)

without taking into account that directory-write-date may return nil (as it is implemented using file-write-date).

BTW, the directory it tests, C:/Users/anton/quicklisp/local-projects/, exists.

[quicklisp]

Thanks. I'll try to find out how to get the directory-write-date in ECL for Windows.

[quicklisp]

According to Juanjo this is a bug in file-write-date in Windows ECL. It should be fixed very soon.

[avodonosov]

Good.

file-write-date is allowed to return NIL by CLHS, so probably quicklisp code should handle this situation somehow.