From: Brian Candler <b.candler@...>
Date: 2010-08-14T00:09:34+09:00
Subject: Re: libstdc++

Pw Ktp wrote:
> 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

If you have libstdc++6, then you should be able to install 
libstdc++6-4.2-dev (unless you got that libstdc++6 package from 
somewhere outside the standard Ubuntu package respositories)

If you're not getting a mkmf.log, then perhaps it's failing building a 
dependency. Look for the mkmf.log with the most recent timestamp

find /var/lib/gems/1.8/gems -name mkmf.log | xargs ls -lrt
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