Now, you could argue that we should not have attempted multiarch at all until multiarch cross was ready, but if that were the case we still wouldn't have 64 bit wine today. More broadly, making Wine building slightly more difficult on 64-bit systems seems to be just about the only visible downside to the multiarch transition.
This is not a simple fix and requires substantial engineering. It is, however, specced out and in progress: https:/ /wiki.ubuntu. com/MultiarchCr oss
Now, you could argue that we should not have attempted multiarch at all until multiarch cross was ready, but if that were the case we still wouldn't have 64 bit wine today. More broadly, making Wine building slightly more difficult on 64-bit systems seems to be just about the only visible downside to the multiarch transition.