Convert to using CMake in order to speed up compilation and to fix
compilation under glibc.

Add extra dependencies since they're now needed.

Signed-off-by: Rosen Penev <rosenp@gmail.com>

Signed-off-by: Lucian Cristian <lucian.cristian@gmail.com>

If libxml2 is installed in the host, then the host library is used and
compilation fails.

Signed-off-by: Eneas U de Queiroz <cotequeiroz@gmail.com>

Signed-off-by: Rosen Penev <rosenp@gmail.com>

added option DatabaseDirectory
update depends on musl-fts libraries

Signed-off-by: Lucian Cristian <lucian.cristian@gmail.com>

Signed-off-by: Marko Ratkaj <marko.ratkaj@sartura.hr>