What are the intervals that pre-build packages for Lion are generated?
For example, `libpaper` is already available, but `ghostscript` is
not, and neither is 'texlive-bin'...
And while we are at it, 'ports.macports.org' reports that 'lilypond'
can't be build on Lion due to
```
Dependency 'poppler' with variants '+boost' has previously failed and is
required.
```
(why is `+boost` needed?)
However, looking into the 'poppler' page on 'ports.macports.org' it
seems that the Lion build is healthy – and the variant '+boost' has
been just built from source on my computer without a problem...
Werner
