Basically copied from other mozilla packages like www/firefox-bin,
but for some reason there is no mail/thunderbird-bin.
This installs regular old thunderbird 1.5.0.8, but uses the official
linux binary release.
this allows the binary to at least find the libraries on Linux,
but it is segfaulting on startup for me on Slackware 9 after adding
glibc 2.3.2 to satisfy the requirement.
Mozilla Thunderbird is a redesign of the Mozilla mail component. The
goal is to produce a cross platform stand alone mail application using
the XUL user interface language.