http://tinyurl.com/5hnvv The date_time regression tests in the gregorian subdir called "testgenerators" and "testgenerators_dll" fail to compile on Solaris due to the use of a variable called "sun". Unfortunately, there is a preprocessor macro sun == 1 which gets defined on this platform that ends up turning the declaration: greg_weekday sat(Saturday), tue(Tuesday), fri(Friday), sun(Sunday); into greg_weekday sat(Saturday), tue(Tuesday), fri(Friday), 1(Sunday); I'd suggest either #undef sun at the top of the file or changing the name of this variable. Also, there are few other failures (testclocks, testlocal_time, testlocal_time_facet) due to a missing declaration of time_ in local_date_time_base. Example: http://tinyurl.com/5xd8h testtz_database is failing because it can't find its input file (probably because of the working directory the tests are run from). Perhaps this file should be found starting from $BOOST_ROOT? -- Caleb Epstein caleb dot epstein at gmail dot com