Sharing memory between a Windows Wine process and a Linux process doesn't work

It looks to me that is just because on Windows files representing shmem objects go into

C:\Users\\Temp\shared_memory-rs

and on Linux into

/dev/shm

Once I forced the Windows/Wine process to create a file in `Z:\\dev\\shm`, which in Wine corresponds to Linux's `/dev/shm`, sharing seems to work fine.

What do you think of a new `wine` feature where `windows.rs` `get_tmp_dir()` would just return `Ok(PathBuf::from("Z:\\dev\\shm"))` ?