it looks like in mainline this test recently started failing at compile time on some machines. I'm puzzled, unfortunately cannot reproduce the problem and would be grateful is someone could send me (either privately or in public) more information (e.g., an extract from libstdc++.log, at least).
At FreeBSD 5.3 this testcase failed with gcc version 4.1.0 20050429 (extracted log attached)
Vladimir
12077.log
Description: Binary data
