Also fall back to LLVM 3.0 automatically if C++11 is not supported. Bug b/115344057 Bug b/116540140 Change-Id: Ied0bfa17fcdc82f1181704fd63eda5c312b8380e Reviewed-on: https://swiftshader-review.googlesource.com/c/21510Tested-by: Nicolas Capens <nicolascapens@google.com> Reviewed-by: Alexis Hétu <sugoi@google.com>
