cannot install ruby-debug-base

excuse me, I want install ruby-debug-base.. but,

# gem install -V ruby-debug-base bla.. bla.. bla.. bla.. /usr/local/lib/ruby/gems/1.9.1/gems/linecache-0.43/test/short-file Building native extensions. This could take a while... ERROR: Error installing ruby-debug-base:    ERROR: Failed to build gem native extension.

/usr/local/bin/ruby extconf.rb Can't handle 1.9.x yet *** extconf.rb failed *** Could not create Makefile due to some reason, probably lack of necessary libraries and/or headers. Check the mkmf.log file for more details. You may need configuration options.

Provided configuration options:    --with-opt-dir    --without-opt-dir    --with-opt-include    --without-opt-include=${opt-dir}/include    --with-opt-lib    --without-opt-lib=${opt-dir}/lib    --with-make-prog    --without-make-prog    --srcdir=.    --curdir    --ruby=/usr/local/bin/ruby

Gem files will remain installed in /usr/local/lib/ruby/gems/1.9.1/gems/ linecache-0.43 for inspection. Results logged to /usr/local/lib/ruby/gems/1.9.1/gems/linecache-0.43/ ext/gem_make.out

what should I do? Thanks in Advance

excuse me, I want install ruby-debug-base.. but,

# gem install -V ruby-debug-base bla.. bla.. bla.. bla.. /usr/local/lib/ruby/gems/1.9.1/gems/linecache-0.43/test/short-file Building native extensions. This could take a while... ERROR: Error installing ruby-debug-base: ERROR: Failed to build gem native extension.

[snip]

Gem files will remain installed in /usr/local/lib/ruby/gems/1.9.1/gems/ linecache-0.43 for inspection. Results logged to /usr/local/lib/ruby/gems/1.9.1/gems/linecache-0.43/ ext/gem_make.out

what should I do? Thanks in Advance

ruby 1.9 requires ruby-debug19 instead of ruby-debug

Fred