Allow the SWIG Perl bindings to build without using Python.
Allow the SWIG Perl bindings to build without using Python.

* Makefile.in
  (READLINK): Rename to...
  (READLINK_PY): ...this.
  (READLINK_PL): New.
  (swig-pl): Use READLINK_PL.


git-svn-id: f8a4e5e023278da1e04e203c7fe051e3c4285d88@1039040 13f79535-47bb-0310-9956-ffa450edef68

wbond/subversion,wbond/subversion,YueLinHo/Subversion,wbond/subversion,YueLinHo/Subversion,wbond/subversion,wbond/subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,wbond/subversion,YueLinHo/Subversion,YueLinHo/Subversion,wbond/subversion