Build statically linked binary on gentoo

I'm looking for a way to build a fully statically linked binary on Gentoo. The build system is Meson. I tries --prefer-static and --default_library=static with no success. A possible obstacle is that some libraries (e.g. libevent and glib) don't have the static versions installed (unlike libc and a few other libraries). Should I rerun emerge with some special flags?