root@vmVvnu77a2z:/home/woody# apt-get install libc-dev
Reading package lists... Done
Building dependency tree
Reading state information... Done
Package libc-dev is a virtual package provided by:
  libc6-dev 2.10.1-0ubuntu17
You should explicitly select one to install.
E: Package libc-dev has no installation candidate
root@vmVvnu77a2z:/home/woody# apt-get install libc6-de
Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Couldn't find package libc6-de
root@vmVvnu77a2z:/home/woody# apt-get install libc6-dev
Reading package lists... Done
Building dependency tree
Reading state information... Done
libc6-dev is already the newest version.
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
root@vmVvnu77a2z:/home/woody#