sdl2 is used for detection of gamepads since 3.2
But the SDL2 support isn't plumbed into Wine's main configure script until Wine version 3.3. So NP is right not to support it for version 3.2.
The bug has been closed via the following commit(s): https://gitweb.gentoo.org/repo/proj/wine.git/commit/?id=59d899fc13c70ec1194dea0e9573abde359af121 commit 59d899fc13c70ec1194dea0e9573abde359af121 Author: Nick Sarnie <sarnex@gentoo.org> AuthorDate: 2018-04-28 18:49:13 +0000 Commit: Nick Sarnie <sarnex@gentoo.org> CommitDate: 2018-04-30 01:31:19 +0000 app-emulation/wine-vanilla: Bump to 3.3 Closes: https://bugs.gentoo.org/654164 Package-Manager: Portage-2.3.31, Repoman-2.3.9 app-emulation/wine-vanilla/Manifest | 1 + app-emulation/wine-vanilla/wine-vanilla-3.3.ebuild | 529 +++++++++++++++++++++ 2 files changed, 530 insertions(+)