[Bug 52222] New: WINEDLLOVERRIDES="DINPUT8.dll=n,b" no longer works since 4f1095a, worked in V6.23.

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=52222

            Bug ID: 52222
           Summary: WINEDLLOVERRIDES="DINPUT8.dll=n,b" no longer works
                    since 4f1095a, worked in V6.23.
           Product: Wine
           Version: 7.0-rc1
          Hardware: x86-64
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: winmm&mci
          Assignee: wine-bugs at winehq.org
          Reporter: billfleming11 at gmail.com
      Distribution: ---

Zebediah pointed out where this new bug was and I confirmed the regression with
a minor code modification. See his comments here for the program I first saw
the regression against.
https://bugs.winehq.org/show_bug.cgi?id=51409#c7

In Wine 3.X, 4.X, 5.X, 6.X we have been able to supply modified DLLs (for
example that some games require to load a translation or a mod to fix bugs,
etc) in the game's directory and override the built-in DLL to load the
modification hook into the application. From 4f1095a on-wards dinput8 became an
IMPORT requirement of winmm makefile leading to the following error in wine,
before it even really attempts to load the application.

LdrInitializeThunk "WINMM.dll" failed to initialize, aborting

I can modify wine 7.0-rc1 to allow the dll to load again, making the game
playable other than any lingering video playback issues it has.
In dlls/winmm/Makefile.in I modified the IMPORTS line to remove dinput8.
In dlls/winmm/joystick.c I commented out the contents of the void
joystick_load( HINSTANCE instance ) function. (lines 157 to 159 as of 7.0-rc1).

Then after rebuilding wine the application will launch again using
WINEDLLOVERRIDES="DINPUT8.dll=n,b"

Note that this regression will affect a large number of video games as it is
almost universal to "hook" into a game using DINPUT8.dll specifically, as
apposed to other possible DLLs.

If anyone really wants to look at a log file I put one here in the old report.
https://bugs.winehq.org/attachment.cgi?id=71302

Note that at least in this one game my xbox 1 controller still works with xow
after removing those lines, but someone who knows what they are doing should
propose a new patch relating to joysticks.

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