libsigc++-legacy12: libsigc++-legacy12 (typesafe callback system for standard C++) libsigc++-legacy12: libsigc++-legacy12: libsigc++ implements a typesafe callback system for standard C++. libsigc++-legacy12: It allows you to define signals and to connect those signals to any libsigc++-legacy12: callback function, either global or a member function, regardless libsigc++-legacy12: of whether it is static or virtual. libsigc++-legacy12: It also contains adaptor classes for connection of dissimilar libsigc++-legacy12: callbacks and has an ease of use unmatched by other C++ callback libsigc++-legacy12: libraries. Libsigc++ is licensed under the GNU Library General libsigc++-legacy12: Public License, LGPL. libsigc++-legacy12: