igrok: Unfortunately the game is still not playable with this version of wine despite what is claimed. After playing a bit I found a graphical bug with the character moving outside the edge of the mountain into the air.
Right, I did see that. In the context of her bed having just fallen towards the horizon from underneath her and leaving her standing upright to yap about how she's dreaming again, I just thought it was meant to be like that. Looking at the animation closely I think she's not actually walking off the cliff, just being drawn without regard to the panned background.
A glitch it is then. Not a game breaking one but apparently there will be worse later. [EDIT: see edits below.]
immi101: the author of the mentioned patches (to who the bug is assigned to), already stated 3 years ago that he is no longer working on this ... :(
Don't despair, there's no reason why it has to be him personally. In fact it seems that the issue has been discussed on wine-staging much more recently and while the link itself is now dead,
a comment on the bugzilla still has links to the patches ported to a newer wine. I wish I had noticed this yesterday. Patch 3 needs a bit of work, the rest still apply on wine 1.9.9. It's no better than the old patches, but feels less abandoned and at least I can compile it now.
I'll add a mention here of my experiences if I decide to try play it like this.
EDIT 1: Encountered the problem mentioned as a show-stopper in the bug reports, but got around it! You need to meet someone in a place but they are not there. Position yourself under the yellow face of a painting with a guy in a blue suit, get a prompt for the missing person at the very right edge of the screen.
EDIT 2: Similar situation in Chapter 3, and this time I can't get around it.