New msys-to-w32 breaks using %emacs_dir%, @VER@ in locallisppath

[Juanma Barranquero]

I build Emacs on Windows by passing the following locallispath to configure:

  
--enable-locallisppath='%emacs_dir%/../site-lisp:%emacs_dir%/share/emacs/@VER@/site-lisp:%emacs_dir%/share/emacs/site-lisp'

The %emacs_dir%/../site-lisp part is required to keep compatibility
with pre-MSYS builds, and @VER@ is to access the version-specific
"shared" site-lisp.

As of this change:

  2013-11-20  Dani Moncayo  <address@hidden>

          * build-aux/msys-to-w32: New file.
          * Makefile.in (msys_to_w32, msys_lisppath_to_w32): Remove.
          (msys_w32prefix_subst): Rename from msys_prefix_subst.
          Operate on w32prefixpattern.
          (epaths-force-w32): Use build-aux/msys-to-w32.

it has stopped working. While building I get this error:

  ./build-aux/msys-to-w32: line 142: cd: %emacs_dir%/../: No such file
or directory
  msys-to-w32: invalid path: %emacs_dir%/share/emacs/@VER@/site-lisp

This is a serious regression IMO.

  J