If i bootstrap using installed some old or same CVS mainline gcc (a.k.a. gcc 4.0.0) i have in testsuit results:
=== libstdc++ Summary === # of expected passes 3472 # of unexpected failures 1 # of unexpected successes 1 # of expected failures 5 If i bootstrap using gcc 3.4.3 version i have in testsuit results: === libstdc++ Summary === # of expected passes 3454 # of unexpected failures 10 # of unexpected successes 1 # of expected failures 5 contrib/compare_tests output: Tests that now fail, but worked before: 22_locale/collate/compare/wchar_t/2.cc (test for excess errors) 22_locale/collate/compare/wchar_t/wrapped_env.cc (test for excess errors) 22_locale/collate/compare/wchar_t/wrapped_locale.cc (test for excess errors) 22_locale/collate/hash/wchar_t/2.cc (test for excess errors) 22_locale/collate/hash/wchar_t/wrapped_env.cc (test for excess errors) 22_locale/collate/hash/wchar_t/wrapped_locale.cc (test for excess errors) 22_locale/collate/transform/wchar_t/2.cc (test for excess errors) 22_locale/collate/transform/wchar_t/wrapped_env.cc (test for excess errors) 22_locale/collate/transform/wchar_t/wrapped_locale.cc (test for excess errors) Old tests that passed, that have disappeared: (Eeek!) 22_locale/collate/compare/wchar_t/2.cc execution test 22_locale/collate/compare/wchar_t/wrapped_env.cc execution test 22_locale/collate/compare/wchar_t/wrapped_locale.cc execution test 22_locale/collate/hash/wchar_t/2.cc execution test 22_locale/collate/hash/wchar_t/wrapped_env.cc execution test 22_locale/collate/hash/wchar_t/wrapped_locale.cc execution test 22_locale/collate/transform/wchar_t/2.cc execution test 22_locale/collate/transform/wchar_t/wrapped_env.cc execution test 22_locale/collate/transform/wchar_t/wrapped_locale.cc execution test I have all *.sum and *.log files from both tastsuite runs and can post its if requared -- Summary: libstdc++ testsuite results differ if bootstrap gcc 4.0 using some gcc 4.0 version or early (gcc 3.4.3) gcc version at FreeBSD Product: gcc Version: 4.0.0 Status: UNCONFIRMED Severity: normal Priority: P2 Component: libstdc++ AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: wanderer at rsu dot ru CC: gcc-bugs at gcc dot gnu dot org GCC build triplet: i386-unknown-freebsd5.3 GCC host triplet: i386-unknown-freebsd5.3 GCC target triplet: i386-unknown-freebsd5.3 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19656