Software that I'm installing requires /lib/libc.so.6, but it's not in place:

$> ls -l /lib/libc*

lrwxrwxrwx 1 root root      14 2011-10-09 06:02 /lib/libcap.so.2 -> libcap.so.2.20

-rw-r--r-- 1 root root   18832 2011-02-16 03:42 /lib/libcap.so.2.20

-rw-r--r-- 1 root root 1620736 2012-05-23 07:19 /lib/libcrypto.so.0.9.8

libc and libc6-dev are installed. Running apt-get upgrade glibc does not solve this.

What should I do to resolve this dependency?