id summary reporter owner description type status milestone component version severity resolution keywords cc 10558 boost 1.56 and gcc.4.9.1 invalid use of incomplete type 'struct boost::detail::shared_state_base' Richard PALO viboes "Trying a build with gcc4.9.1 in pkgsrc and am encountering the following: gcc.compile.c++ bin.v2/libs/thread/build/gcc-4.9.1/release/threading-multi/pthread/thread.o libs/thread/src/pthread/thread.cpp: In destructor 'virtual boost::detail::thread_data_base::~thread_data_base()': libs/thread/src/pthread/thread.cpp:56:21: error: invalid use of incomplete type 'struct boost::detail::shared_state_base' (*i)->make_ready(); ^ In file included from ./boost/thread/thread_only.hpp:17:0, from libs/thread/src/pthread/thread.cpp:11: ./boost/thread/pthread/thread_data.hpp:84:16: error: forward declaration of 'struct boost::detail::shared_state_base' struct shared_state_base; ^ In file included from ./boost/system/system_error.hpp:14:0, from ./boost/thread/exceptions.hpp:22, from ./boost/thread/pthread/thread_data.hpp:10, from ./boost/thread/thread_only.hpp:17, from libs/thread/src/pthread/thread.cpp:11: " Bugs closed thread Boost 1.56.0 Problem worksforme