Brian Candler wrote: > Brian Candler wrote: >> apt-cache shows what packages are available. > > That is, available to be installed. > > dpkg-query -l | grep stdc > > will show you if you have it installed. linuxmce@dcerouter:/usr/lib/ruby/gems/1.8/gems$ dpkg-query -l | grep stdc ii libstdc++5 1:3.3.6-15ubuntu2 The GNU Standard C++ Library v3 ii libstdc++5-3.3-dev 1:3.3.6-15ubuntu2 The GNU Standard C++ Library v3 (development ii libstdc++6 4.2.1-5ubuntu4 The GNU Standard C++ Library v3 ii xstdcmap 1:1.0.1-0ubuntu2 X client - xstdcmap so it is installed ? how can i inform rubygems that it is there? thanks -- Posted via http://www.ruby-forum.com/.