* Andrew W. Nosenko: > ABI break by gcc-4.7.0 and 4.7.1 in c++11 mode was a bug (or > misfeature, call it as you want). Fixed in gcc-4.7.2. > From http://gcc.gnu.org/gcc-4.7/changes.html : I've seen similar issues with GCC 4.7.2. I thought that this was expected, so I didn't report it as a bug. It might be a third-party library which changes ABI when compiled as C++11 instead of C++98, though. But that would be an argument against automatically defaulting to the latest supported C++ standard as well, wouldn't it? _______________________________________________ Autoconf mailing list Autoconf@xxxxxxx https://lists.gnu.org/mailman/listinfo/autoconf