KMail doesn't depend on libgpgme

Binary package hint: kmail

According to http://kmail.kde.org/kmail-pgpmime-howto.html:
  "The KDEPIM package should depend on libgpgme >= 0.4.7. If it does not, complain to the packager. This library is now required to build KMail, not the least of reasons being that you, the user, don't need to bother with compiling that yourself anymore."

I have KMail installed:

pupeno@ulab:~$ dpkg -l kmail
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Installed/Config-files/Unpacked/Failed-config/Half-installed
|/ Err?=(none)/Hold/Reinst-required/X=both-problems (Status,Err: uppercase=bad)
||/ Name Version Description
+++-==============-==============-============================================
ii kmail 3.5.2-0ubuntu6 KDE Email client

I don't have libgpgme:

pupeno@ulab:~$ dpkg -l libgpgme
No packages found matching libgpgme.

Thank you.