According to: https://archives.gentoo.org/gentoo-dev/message/08f23295893d26aec4fa625f80276d15 package net-libs/libguac-client-rdp is not needed because the library file is found in some other guacamole package. www-apps/guacamole-0.9.9 contains: /usr/lib64/libguac-client-vnc.so -> libguac-client-vnc.so.0.0.0 Which package is supposed to contain the libguac-client-rdp.so? It is not in www-apps/guacamole-0.9.9.
Sorry I meant net-misc/guacamole-server-0.9.9, not www-apps/guacamole-0.9.9. The rdp library is not in either package.
It would be nice if https://archives.gentoo.org/gentoo-dev/message/08f23295893d26aec4fa625f80276d15 mentioned the new use flag rdesktop. Sorry I missed that. So this is invalid.