[Bug 51564] Can't run 16bit programs when built without mingw

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=51564

--- Comment #24 from Mike Purtell <mmikeinsantarosa at gmail.com> ---
(In reply to O. Nykyforchyn from comment #12)
> I am also affected by this bug, it makes it impossible to use old but nice
> 16-bit WinEdt 1.41e with TeXLive on Linux. After some digging in the latest
> wine-6.18 sources I found out the cause of the problem. After the above
> mentioned commit for launching 16 bit modules Wine in ntdll uses
> find_builtin_without_file -> open_dll_file -> NtCreateSection, which makes a
> request ( create_mapping ) to wineserver, which in turn fails with
> STATUS_INVALID_IMAGE_WIN_16 and returns no mapping.
> 
> Hence I made some changes to ntdll and a bit to wineserver to provide a
> partial solution. Now wineserver still issues STATUS_INVALID_IMAGE_WIN_16
> but returns a fake (almost zeroed) mapping with WineFakeDll flag if fake 16
> bit dll is found. Upon this open_dll_file stops search and replaces
> STATUS_INVALID_IMAGE_WIN_16 with STATUS_INVALID_IMAGE_NOT_MZ that asks to
> try .so library instead. It its path "-windows", if found, is replaced with
> "-unix", ".so" is appended, so real library is loaded instead of fake 16 bit
> one. 
> 
> All this is in unix-16bit.patch against wine-6.18 source, hope it applies
> cleanly also to git wine sources.
> 
> I am not sure whether it is a proper fix, but at least WinEdt.exe starts
> now. Unfortunately, all checkboxes in configuration dialogs are dead (empty
> and not responding), and text input field is black instead of white with
> text in strange colors and displaced randomly. I would be grateful for a
> hint whether it connected with this bug or the cause is somewhere else.
> 
> Probably the attached patch, if does not solve the problem, can be a step in
> right direction. It could be interesting to try it with other apps. If it
> helps, I could polish it and submit to Wine developers.

where is unix-16bit.patch located?
I'd like to try it in a build for wine-6.22

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