Hi, Both oracle-intel-S2-next-cpp11 and oracle-sparc-S2-next-stlport4 testers fail to compile common_type as it is being used in Boost.Chrono. This in turn affects compilation of Boost.Thread and multiple other library tests. The error can be seen here: http://www.boost.org/development/tests/develop/developer/output/oracle-intel... Just in case if the test results go down, I'm copying the error inline below. Could it be fixed? "CC" -std=c++11 -temp=/tmp/bn -xO4 -mt -erroff=%none -m32 -KPIC -DBOOST_ALL_NO_LIB=1 -DBOOST_ATOMIC_DYN_LINK=1 -DBOOST_CHRONO_DYN_LINK=1 -DBOOST_SYSTEM_DYN_LINK=1 -DBOOST_SYSTEM_NO_DEPRECATED -DBOOST_THREAD_BUILD_DLL=1 -DBOOST_THREAD_POSIX -DBOOST_THREAD_USE_DLL=1 -DNDEBUG -D__typeof__=__typeof__ -I".." -c -o "/export/home/sstrunk-tester/boost_regression/boost_regression_develop/boost_intel-S2_cpp11/results/boost/bin.v2/libs/atomic/test/atomicity.test/sun-next_cpp11/release/threading-multi/atomicity.o" "../libs/atomic/test/atomicity.cpp" "../boost/chrono/duration.hpp", line 405: Error: type is not a member of boost::common_type<long long, long long>. "../boost/thread/pthread/timespec.hpp", line 52: Where: While specializing "boost::common_type<boost::chrono::duration<long long, boost::ratio<1, 1000000000>>, boost::chrono::duration<long long, boost::ratio<1, 1>>>". "../boost/thread/pthread/timespec.hpp", line 52: Where: Instantiated from boost::chrono::operator-<Rep1, Period1, Rep2, Period2>(const duration<Rep1, Period1>&, const duration<Rep2, Period2>&). "../boost/thread/pthread/timespec.hpp", line 52: Where: Instantiated from non-template code. "../boost/chrono/duration.hpp", line 406: Error: A declaration does not specify a tag or an identifier. "../boost/thread/pthread/timespec.hpp", line 52: Where: While specializing "boost::common_type<boost::chrono::duration<long long, boost::ratio<1, 1000000000>>, boost::chrono::duration<long long, boost::ratio<1, 1>>>". "../boost/thread/pthread/timespec.hpp", line 52: Where: Instantiated from boost::chrono::operator-<Rep1, Period1, Rep2, Period2>(const duration<Rep1, Period1>&, const duration<Rep2, Period2>&). "../boost/thread/pthread/timespec.hpp", line 52: Where: Instantiated from non-template code. "../boost/chrono/duration.hpp", line 406: Error: Use ";" to terminate declarations. "../boost/thread/pthread/timespec.hpp", line 52: Where: While specializing "boost::common_type<boost::chrono::duration<long long, boost::ratio<1, 1000000000>>, boost::chrono::duration<long long, boost::ratio<1, 1>>>". "../boost/thread/pthread/timespec.hpp", line 52: Where: Instantiated from boost::chrono::operator-<Rep1, Period1, Rep2, Period2>(const duration<Rep1, Period1>&, const duration<Rep2, Period2>&). "../boost/thread/pthread/timespec.hpp", line 52: Where: Instantiated from non-template code. "../boost/chrono/duration.hpp", line 406: Error: "}" expected instead of ">". "../boost/thread/pthread/timespec.hpp", line 52: Where: While specializing "boost::common_type<boost::chrono::duration<long long, boost::ratio<1, 1000000000>>, boost::chrono::duration<long long, boost::ratio<1, 1>>>". "../boost/thread/pthread/timespec.hpp", line 52: Where: Instantiated from boost::chrono::operator-<Rep1, Period1, Rep2, Period2>(const duration<Rep1, Period1>&, const duration<Rep2, Period2>&). "../boost/thread/pthread/timespec.hpp", line 52: Where: Instantiated from non-template code. "../boost/thread/pthread/timespec.hpp", line 52: Error: The operation "const boost::chrono::duration<long long, boost::ratio<1, 1000000000>> - boost::chrono::duration<long long, boost::ratio<1, 1>>" is illegal. 5 Error(s) detected.