= boost =

To use a DESTDIR method just change the `--prefix` option in the install command:
{{{
    ./b2 --prefix=$DESTDIR/usr install threading=multi link=shared
}}}
(where $DESTDIR is set to /some/path/to/directory)

If you wish to get verbose output from '''./b2''', add `-d+2` to the invocation. Doing that, you can see that only g++ is used, and that the default compile flags are -O3. If you wish to append any other CXXFLAGS, add `cxxflags="-fwhatever"` to the first '''./b2''' invocation (the second invocation for install only copies the files).