Changes to autoload?

[Lennart Borgman]

Are there any recent changes to autoload (since 2009-09-15)? I have
got some problems with my own autoloads after a fresch build today. I
have

(autoload 'php-mode "../related/php-mode" "\
Major mode for editing PHP code.

\\{php-mode-map}

\(fn)" t nil)

in a file called nxhtml/nxhtml-loaddefs.el. php-mode is defined in
nxhtml/related/php-mode.el.

This used to work, but today I get an error

Debugger entered--Lisp error: (file-error "Cannot open load file"
"../related/related/php-mode")
  php-mode()
  funcall(php-mode)