The OpenXT recipe for the Xen libxl toolstack supplies options for disabling compiler optimizations in build for this component. These were introduced during the conversion of the toolstack:
As part of the work to refactor the Xen recipes for OXT-1694, the libxl recipe is being brought back into the main tools build, to simplify the recipes and bring it much closer to upstream meta-virtualization implementation.
Are these flags still required for building OpenXT's libxl? It would be helpful to know if these are still believed to be necessary before undertaking work to create a patch to apply them.