pidgin/pidgin

Don't allow adding a buddy to prpls that don't have an add_buddy callback. Fixes #4061
#ifndef _PURPLE_CLIENT_H_INCLUDED_
#define _PURPLE_CLIENT_H_INCLUDED_
#include <glib.h>
#include "purple-client-bindings.h"
G_BEGIN_DECLS
void purple_init(void);
G_END_DECLS
#endif