Setup.rb --prefix not working?

I’m trying to use setup.rb’s --prefix option, but it only seems to be
copy the data/ file to the prefix location. Everything else is gogin to
the ususual places. Below is the output I’m getting.

Thanks,
T.

ruby setup.rb all --prefix=…/DISTRIBUTION/reap-4.3.1/debian
—> bin
<— bin
—> lib
—> lib/reap
—> lib/reap/bin
<— lib/reap/bin
—> lib/reap/task
<— lib/reap/task
—> lib/reap/interface
<— lib/reap/interface
<— lib/reap
<— lib
—> data
—> data/reap
—> data/reap/scaffold
<— data/reap/scaffold
<— data/reap
<— data
—> bin
<— bin
—> lib
—> lib/reap
—> lib/reap/bin
<— lib/reap/bin
—> lib/reap/task
<— lib/reap/task
—> lib/reap/interface
<— lib/reap/interface
<— lib/reap
<— lib
—> data
—> data/reap
—> data/reap/scaffold
<— data/reap/scaffold
<— data/reap
<— data
rm -f InstalledFiles
—> bin
mkdir -p
/cab/Home/trans/my/code/RUBY/DISTRIBUTION/reap-4.3.1/debian/bin/
install reap
/cab/Home/trans/my/code/RUBY/DISTRIBUTION/reap-4.3.1/debian/bin/
<— bin
—> lib
mkdir -p /usr/local/lib/site_ruby/1.8/
—> lib/reap
mkdir -p /usr/local/lib/site_ruby/1.8/reap
install projectinfo.rb /usr/local/lib/site_ruby/1.8/reap
install lint.rb /usr/local/lib/site_ruby/1.8/reap
install task.rb /usr/local/lib/site_ruby/1.8/reap
install reap.rb /usr/local/lib/site_ruby/1.8/reap
—> lib/reap/bin
mkdir -p /usr/local/lib/site_ruby/1.8/reap/bin
install reap.rb /usr/local/lib/site_ruby/1.8/reap/bin
<— lib/reap/bin
—> lib/reap/task
mkdir -p /usr/local/lib/site_ruby/1.8/reap/task
install rdoc.rb /usr/local/lib/site_ruby/1.8/reap/task
install release.rb /usr/local/lib/site_ruby/1.8/reap/task
install announce.rb /usr/local/lib/site_ruby/1.8/reap/task
install testext.rb /usr/local/lib/site_ruby/1.8/reap/task
install install.rb /usr/local/lib/site_ruby/1.8/reap/task
install test.rb /usr/local/lib/site_ruby/1.8/reap/task
install webpublish.rb /usr/local/lib/site_ruby/1.8/reap/task
install scaffold.rb /usr/local/lib/site_ruby/1.8/reap/task
install noop.rb /usr/local/lib/site_ruby/1.8/reap/task
install fileperm.rb /usr/local/lib/site_ruby/1.8/reap/task
install package.rb /usr/local/lib/site_ruby/1.8/reap/task
install info.rb /usr/local/lib/site_ruby/1.8/reap/task
install publish.rb /usr/local/lib/site_ruby/1.8/reap/task
<— lib/reap/task
—> lib/reap/interface
mkdir -p /usr/local/lib/site_ruby/1.8/reap/interface
install interface.rb /usr/local/lib/site_ruby/1.8/reap/interface
install rubyforge.rb /usr/local/lib/site_ruby/1.8/reap/interface
<— lib/reap/interface
<— lib/reap
<— lib
—> data
mkdir -p
/cab/Home/trans/my/code/RUBY/DISTRIBUTION/reap-4.3.1/debian/share/
—> data/reap
mkdir -p
/cab/Home/trans/my/code/RUBY/DISTRIBUTION/reap-4.3.1/debian/share/reap
—> data/reap/scaffold
mkdir -p
/cab/Home/trans/my/code/RUBY/DISTRIBUTION/reap-4.3.1/debian/share/reap/scaffold
install Todo
/cab/Home/trans/my/code/RUBY/DISTRIBUTION/reap-4.3.1/debian/share/reap/scaffold
install Rakefile
/cab/Home/trans/my/code/RUBY/DISTRIBUTION/reap-4.3.1/debian/share/reap/scaffold
install README
/cab/Home/trans/my/code/RUBY/DISTRIBUTION/reap-4.3.1/debian/share/reap/scaffold
install setup.rb
/cab/Home/trans/my/code/RUBY/DISTRIBUTION/reap-4.3.1/debian/share/reap/scaffold
install INSTALL
/cab/Home/trans/my/code/RUBY/DISTRIBUTION/reap-4.3.1/debian/share/reap/scaffold
install ChangeLog
/cab/Home/trans/my/code/RUBY/DISTRIBUTION/reap-4.3.1/debian/share/reap/scaffold
install COPYING
/cab/Home/trans/my/code/RUBY/DISTRIBUTION/reap-4.3.1/debian/share/reap/scaffold
install ProjectInfo
/cab/Home/trans/my/code/RUBY/DISTRIBUTION/reap-4.3.1/debian/share/reap/scaffold
<— data/reap/scaffold
<— data/reap
<— data