I cannot reproduce the problem, the lib installed just fine via apt-get install on my system:
ubuntu@oneiric-lxc:~$ sudo apt-get install libstdc++5 [sudo] password for ubuntu: Reading package lists... Done Building dependency tree Reading state information... Done The following NEW packages will be installed: libstdc++5 0 upgraded, 1 newly installed, 0 to remove and 0 not upgraded. Need to get 259 kB of archives. After this operation, 1,098 kB of additional disk space will be used. Get:1 http://de.archive.ubuntu.com/ubuntu/ oneiric/universe libstdc++5 i386 1:3.3.6-24ubuntu1 [259 kB] Fetched 259 kB in 5s (46.6 kB/s) Selecting previously deselected package libstdc++5. (Reading database ... 157520 files and directories currently installed.) Unpacking libstdc++5 (from .../libstdc++5_1%3a3.3.6-24ubuntu1_i386.deb) ... Setting up libstdc++5 (1:3.3.6-24ubuntu1) ... Processing triggers for libc-bin ... ldconfig deferred processing now taking place ** Changed in: apt (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/911119 Title: apt-get install compatability error To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/apt/+bug/911119/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs