On 31 January 2011 23:56, Ian Lance Taylor wrote: > Jonathan Wakely <jwakely.gcc@xxxxxxxxx> writes: > >> On 31 January 2011 19:16, Ian Lance Taylor wrote: >>> >>> Using -std=c++0x will cause libstdc++ to build in C++0x mode, which last >>> time I checked was not strictly ABI compatible with libstdc++ not built >>> in C++0x mode. So if you link with a dynamic libstdc++.so, you may get >>> in trouble in some complex scenarios. >> >> Do you remember the details? I thought we'd done a good job of not >> breaking the ABI, and have avoided making some changes required by >> C+0x because they change the ABI. I'd like to document the potential >> problems if you can remember where the incompatibilities are. > > http://gcc.gnu.org/PR45093 Aha, thanks