%%% src_config
Dataword \Arg{rootprefix} means that the project uses root directory \File{/}
along with \File{/usr} and several essential packages are installed to root directory.
When the system is merged to \File{/usr}, this word is absent in configuration.

Many paths for the package differ in case of using \Arg{rootprefix} scheme
or using merged \File{/usr}.
The string with \Prog{ause} command chooses the first block of options in case of
\Arg{rootprefix}. The scheme with merged \File{/usr} uses second block.

%%% lfs_postinstall

Method \Prog{lfs\_postinstall} is empty, that means the postinstall script
of package is not executed after the package is unpacked into chrooted filesystem.
The postinstall script requires root privileges, which we do not have.
