Outdated configure advice concerning libssl

If you lack libssl tor's configure fails with...

checking for openssl directory... configure: WARNING: Could not find a linkable openssl.  If you have it installed somewhere unusual, you can specify an explicit path using --with-openssl-dir
configure: WARNING: On Debian, you can install openssl using "apt-get install libssl"
configure: WARNING:    You will probably need libssl-dev too.
configure: error: Missing libraries; unable to proceed.

This is all fine except the openssl package presently doesn't exist in either ubuntu or debian sid...

http://packages.debian.org/sid/libssl https://launchpad.net/ubuntu/+source/libssl

Installing libssl-dev did the trick for me.