auto-mode fails in console for 1.8.7

[alainravet]

$ rbenv local 1.8.7
$ ruby -v ;gem uninstall private_please ; be rake install ; ruby -rubygems -rprivate_please doc/fixtur
    ruby 1.8.7 (2012-10-12 patchlevel 371) [i686-darwin11.4.2]
    Successfully uninstalled private_please-0.0.4rc
    private_please 0.0.4rc built to pkg/private_please-0.0.4rc.gem.
    private_please (0.0.4rc) installed.
    ruby: no such file to load -- private_please (LoadError)

$ rbenv local 1.9.3
$ ruby -v ;gem uninstall private_please ; be rake install ; ruby -rubygems -rprivate_please doc/fixtur
    ruby 1.9.3p392 (2013-02-22 revision 39386) [x86_64-darwin11.4.2]
    Successfully uninstalled private_please-0.0.4rc
    private_please 0.0.4rc built to pkg/private_please-0.0.4rc.gem.
    private_please (0.0.4rc) installed.
    ====================================================================================
    =                               PrivatePlease report :                             =
    ====================================================================================
    ComplexReport::AnotherClass

        * Good candidates : can be made private :
        ------------------------------------------
          #make_external_calls                     .c_

[alainravet]

WON'T FIX : this is not the right way to launch a program with PP (see ..)