#8050 Supporting wine's new wow64 mode | LMMS | Page 1

velvet grove Aug 28, 2025, 6:49 PM

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Starting a dedicated thread about whether or not LMMS can support 32-bit VSTs on Linux into the future.

Dedicated bug report here with more info: #8050

torpid flaxBOT Aug 28, 2025, 6:49 PM

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issue_opened #8050, @RiedleroD: 32-bit windows VST plugin host fails to compile on WoW64 wine

velvet grove Aug 28, 2025, 6:50 PM

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Quoting the stance on winegcc compling 32-bit libs from the winehq team:

32-bit ELF dlls cannot be built in new wow64 mode, since the whole idea is to not use 32-bit Unix libraries.

If you want to support new wow64 with a 32-bit binary, the only way is to build it as PE. If you need to make Unix calls you have to create a separate Unix library and use the WINE_UNIX_CALL interface. This is still a work in progress as far as Winelib is concerned though.

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Note the use of the phrase "new wow64 mode", which is winehq's own terminology (as opposed to the "old wow64 mode").

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#8050 Supporting wine's new wow64 mode

velvet grove Aug 28, 2025, 7:34 PM

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Ouch: https://github.com/robbert-vdh/yabridge/blob/1e826f072ee79b0c1cab7833bed57fcfa11ae4f7/README.md?plain=1#L869

velvet grove Aug 28, 2025, 8:22 PM

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This bug also prevents RUNNING any 32-bit VSTs too for platforms using the new WOW64 mode. (sadly, installing multilib doesn't help either)

##8050 Supporting wine's new wow64 mode