/* * Install request * * Ensure installation of a solvable by either * * specifying it directly * * specify it by name * * specify a required relation * * Except when specified directly, the solver is free to choose any * solvable matching the request (by name, by relation) * * call-seq: * request.install(solvable) -> void * request.install("kernel") -> void * request.install(relation) -> void * */ void install( XSolvable *xs )