Machine type needs to be x86.

.github/workflows/main.yml

@@ -119,7 +119,7 @@ jobs:
         cd build
         set PATH=%PATH%;C:\Program Files (x86)\WiX Toolset v3.11\bin;%CD%
         cmake -GNinja -DCMAKE_BUILD_TYPE=RelWithDebInfo -DCMAKE_INSTALL_PREFIX=output -DCMAKE_MAKE_PROGRAM=ninja.exe -DQTROOT=%Qt5_DIR% -DMPV_INCLUDE_DIR=mpv/include -DMPV_LIBRARY=mpv/mpv.dll -DCMAKE_INSTALL_PREFIX=output ..
-        lib /def:mpv\mpv.def /out:mpv\mpv.dll.lib /MACHINE:X64
+        lib /def:mpv\mpv.def /out:mpv\mpv.dll.lib /MACHINE:X86
         ninja
         ninja windows_package
       shell: cmd