Here is the list of patches to restore gnu versioned namespace mode.
1/3: Bump gnu version namespace
This is important to be done first so that once build of gnu versioned
namespace is fixed there is no chance to have another build of '__8'
version with a different abi than last successful '__8' build.
2/3: Fix build using cxx11 abi for versioned namespace
3/3: Proposal to default to "new" abi when dual abi is disabled and
accept any default-libstdcxx-abi either dual abi is enabled or not.
All testsuite run for following configs:
- dual abi
- gcc4-compatible only abi
- new only abi
- versioned namespace abi
François
