[parrot/parrot] 306d9b: [GH 803] fix installed rpath_lib

[GitHub]

  Branch: refs/heads/gh803_rpath_blib
  Home:   https://github.com/parrot/parrot
  Commit: 306d9b43b83746b6c7b76ead0c499189b61d6cb2
      https://github.com/parrot/parrot/commit/306d9b43b83746b6c7b76ead0c499189b61d6cb2
  Author: Reini Urban <rurban at cpanel.net>
  Date:   2012-08-23 (Thu, 23 Aug 2012)

  Changed paths:
    M tools/dev/pbc_to_exe.winxed

  Log Message:
  -----------
  [GH 803] fix installed rpath_lib

When building installables in the builddir, rpath_blib contains
cruft (-Wl:/usr/local/lib) and rpath_lib only is valid.
This disallows testing installables without LD_LIBRARY_PATH.