> The GNU libstdc++ introduced TR1 in version 4.0. The TR1 headers have been > put into a subdirectory. Starting with version 4.3, the headers can be > included as in C++11 and the symbols are in namespace std, but only if the > language mode is set to C++0x or higher. The library version number is > stored in __GLIBCXX__.
For an entirely different reason (missing atomic support) gcc 3.4 currently causes trouble, as in libuv is not building. There are also failures in SHA3 which I can't explain, and which could also be related to atomic support. So my suggestion would be to also drop support for gcc 3.4, i.e. require gcc>=4.0. The last release of gcc 3.4 is from 2006, which is close to the timeframe of the MSVC versions we require. Opinions? Eike
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