Projectile is clearing other advices for compilation-find-file

[caioaao]

I have the following advice for the compilation-find-file:

(advice-add 'compilation-find-file  :around
              (lambda (oldfun &rest args)
                (destructuring-bind
                    (marker filename directory &rest formats) args
                  (apply oldfun marker
                         (w32utils-expand-subst filename)
                         (w32utils-expand-subst directory)
                         formats))))

All it does is expanding the path when I'm in Windows and using subst (more about it here), but when i have projectile-mode enabled in compilation directory, this advice is not being called. I'm a newbie on advising functions, but it looks like the way projectile does it's own advising breaks the other advices for this function. I've also read on Emacs Lisp Reference is obsolete. Could this error be related to some compatibility issues between defadvice and advice-add?

[bbatsov]

I was under the impression you can have multiple advices for the same command. advice-add was added just recently and we can't leverage it in Projectile just yet.

[caioaao]

You can, but since the projectile advices apparently overrides the find-file / compilation-find-file implementations (sometimes it doesn't call ad-do-it), the other advices may have no effect.

I've tested it with defadvice to make sure it wasn't a compatibility issue, and it also didn't work.

[caioaao]

This patch seems to have fixed it, but I couldn't make cask work in Windows. I'll try running the tests later today and create the PR if successful.