Undefined reference to wine_dlsym and wine_dlopen

Proton version: 5.0-9
wine valve version: 5.12.0
system: Archlinux

After updating to wine valve 5.11 compilation will fail.

wineg++ -shared lsteamclient.spec -o lsteamclient.dll.so steamclient_main.o steamclient_wrappers.o winISteamAppList.o winISteamAppTicket.o winISteamApps.o winISteamClient.o winISteamController.o winISteamFriends.o winISteamGameCoordinator.o winISteamGameSearch.o winISteamGameServer.o winISteamGameServerStats.o winISteamGameStats.o winISteamHTMLSurface.o winISteamHTTP.o winISteamInput.o winISteamInventory.o winISteamMasterServerUpdater.o winISteamMatchmaking.o winISteamMatchmakingServers.o winISteamMusic.o winISteamMusicRemote.o winISteamNetworking.o winISteamNetworkingSockets.o winISteamNetworkingSocketsSerialized.o winISteamNetworkingUtils.o winISteamParentalSettings.o winISteamParties.o winISteamRemotePlay.o winISteamRemoteStorage.o winISteamScreenshots.o winISteamUGC.o winISteamUnifiedMessages.o winISteamUser.o winISteamUserStats.o winISteamUtils.o winISteamVideo.o cppISteamAppList_STEAMAPPLIST_INTERFACE_VERSION001.o cppISteamAppTicket_STEAMAPPTICKET_INTERFACE_VERSION001.o cppISteamApps_STEAMAPPS_INTERFACE_VERSION001.o cppISteamApps_STEAMAPPS_INTERFACE_VERSION002.o cppISteamApps_STEAMAPPS_INTERFACE_VERSION003.o cppISteamApps_STEAMAPPS_INTERFACE_VERSION004.o cppISteamApps_STEAMAPPS_INTERFACE_VERSION005.o cppISteamApps_STEAMAPPS_INTERFACE_VERSION006.o cppISteamApps_STEAMAPPS_INTERFACE_VERSION007.o cppISteamApps_STEAMAPPS_INTERFACE_VERSION008.o cppISteamClient_SteamClient006.o cppISteamClient_SteamClient007.o cppISteamClient_SteamClient008.o cppISteamClient_SteamClient009.o cppISteamClient_SteamClient010.o cppISteamClient_SteamClient011.o cppISteamClient_SteamClient012.o cppISteamClient_SteamClient013.o cppISteamClient_SteamClient014.o cppISteamClient_SteamClient015.o cppISteamClient_SteamClient016.o cppISteamClient_SteamClient017.o cppISteamClient_SteamClient018.o cppISteamClient_SteamClient019.o cppISteamClient_SteamClient020.o cppISteamController_STEAMCONTROLLER_INTERFACE_VERSION.o cppISteamController_SteamController003.o cppISteamController_SteamController004.o cppISteamController_SteamController005.o cppISteamController_SteamController006.o cppISteamController_SteamController007.o cppISteamFriends_SteamFriends001.o cppISteamFriends_SteamFriends002.o cppISteamFriends_SteamFriends003.o cppISteamFriends_SteamFriends004.o cppISteamFriends_SteamFriends005.o cppISteamFriends_SteamFriends006.o cppISteamFriends_SteamFriends007.o cppISteamFriends_SteamFriends008.o cppISteamFriends_SteamFriends009.o cppISteamFriends_SteamFriends010.o cppISteamFriends_SteamFriends011.o cppISteamFriends_SteamFriends012.o cppISteamFriends_SteamFriends013.o cppISteamFriends_SteamFriends014.o cppISteamFriends_SteamFriends015.o cppISteamFriends_SteamFriends017.o cppISteamGameCoordinator_SteamGameCoordinator001.o cppISteamGameSearch_SteamMatchGameSearch001.o cppISteamGameServerStats_SteamGameServerStats001.o cppISteamGameServer_SteamGameServer002.o cppISteamGameServer_SteamGameServer003.o cppISteamGameServer_SteamGameServer004.o cppISteamGameServer_SteamGameServer005.o cppISteamGameServer_SteamGameServer008.o cppISteamGameServer_SteamGameServer009.o cppISteamGameServer_SteamGameServer010.o cppISteamGameServer_SteamGameServer011.o cppISteamGameServer_SteamGameServer012.o cppISteamGameServer_SteamGameServer013.o cppISteamGameStats_SteamGameStats001.o cppISteamHTMLSurface_STEAMHTMLSURFACE_INTERFACE_VERSION_001.o cppISteamHTMLSurface_STEAMHTMLSURFACE_INTERFACE_VERSION_002.o cppISteamHTMLSurface_STEAMHTMLSURFACE_INTERFACE_VERSION_003.o cppISteamHTMLSurface_STEAMHTMLSURFACE_INTERFACE_VERSION_004.o cppISteamHTMLSurface_STEAMHTMLSURFACE_INTERFACE_VERSION_005.o cppISteamHTTP_STEAMHTTP_INTERFACE_VERSION001.o cppISteamHTTP_STEAMHTTP_INTERFACE_VERSION002.o cppISteamHTTP_STEAMHTTP_INTERFACE_VERSION003.o cppISteamInput_SteamInput001.o cppISteamInventory_STEAMINVENTORY_INTERFACE_V001.o cppISteamInventory_STEAMINVENTORY_INTERFACE_V002.o cppISteamInventory_STEAMINVENTORY_INTERFACE_V003.o cppISteamMasterServerUpdater_SteamMasterServerUpdater001.o cppISteamMatchmakingServers_SteamMatchMakingServers001.o cppISteamMatchmakingServers_SteamMatchMakingServers002.o cppISteamMatchmaking_SteamMatchMaking001.o cppISteamMatchmaking_SteamMatchMaking002.o cppISteamMatchmaking_SteamMatchMaking003.o cppISteamMatchmaking_SteamMatchMaking004.o cppISteamMatchmaking_SteamMatchMaking005.o cppISteamMatchmaking_SteamMatchMaking006.o cppISteamMatchmaking_SteamMatchMaking007.o cppISteamMatchmaking_SteamMatchMaking008.o cppISteamMatchmaking_SteamMatchMaking009.o cppISteamMusicRemote_STEAMMUSICREMOTE_INTERFACE_VERSION001.o cppISteamMusic_STEAMMUSIC_INTERFACE_VERSION001.o cppISteamNetworkingSocketsSerialized_SteamNetworkingSocketsSerialized002.o cppISteamNetworkingSocketsSerialized_SteamNetworkingSocketsSerialized003.o cppISteamNetworkingSockets_SteamNetworkingSockets002.o cppISteamNetworkingSockets_SteamNetworkingSockets004.o cppISteamNetworkingSockets_SteamNetworkingSockets006.o cppISteamNetworkingSockets_SteamNetworkingSockets008.o cppISteamNetworkingUtils_SteamNetworkingUtils001.o cppISteamNetworkingUtils_SteamNetworkingUtils002.o cppISteamNetworkingUtils_SteamNetworkingUtils003.o cppISteamNetworking_SteamNetworking001.o cppISteamNetworking_SteamNetworking002.o cppISteamNetworking_SteamNetworking003.o cppISteamNetworking_SteamNetworking004.o cppISteamNetworking_SteamNetworking005.o cppISteamNetworking_SteamNetworking006.o cppISteamParentalSettings_STEAMPARENTALSETTINGS_INTERFACE_VERSION001.o cppISteamParties_SteamParties002.o cppISteamRemotePlay_STEAMREMOTEPLAY_INTERFACE_VERSION001.o cppISteamRemoteStorage_STEAMREMOTESTORAGE_INTERFACE_VERSION001.o cppISteamRemoteStorage_STEAMREMOTESTORAGE_INTERFACE_VERSION002.o cppISteamRemoteStorage_STEAMREMOTESTORAGE_INTERFACE_VERSION003.o cppISteamRemoteStorage_STEAMREMOTESTORAGE_INTERFACE_VERSION004.o cppISteamRemoteStorage_STEAMREMOTESTORAGE_INTERFACE_VERSION005.o cppISteamRemoteStorage_STEAMREMOTESTORAGE_INTERFACE_VERSION006.o cppISteamRemoteStorage_STEAMREMOTESTORAGE_INTERFACE_VERSION007.o cppISteamRemoteStorage_STEAMREMOTESTORAGE_INTERFACE_VERSION008.o cppISteamRemoteStorage_STEAMREMOTESTORAGE_INTERFACE_VERSION009.o cppISteamRemoteStorage_STEAMREMOTESTORAGE_INTERFACE_VERSION010.o cppISteamRemoteStorage_STEAMREMOTESTORAGE_INTERFACE_VERSION011.o cppISteamRemoteStorage_STEAMREMOTESTORAGE_INTERFACE_VERSION012.o cppISteamRemoteStorage_STEAMREMOTESTORAGE_INTERFACE_VERSION013.o cppISteamRemoteStorage_STEAMREMOTESTORAGE_INTERFACE_VERSION014.o cppISteamScreenshots_STEAMSCREENSHOTS_INTERFACE_VERSION001.o cppISteamScreenshots_STEAMSCREENSHOTS_INTERFACE_VERSION002.o cppISteamScreenshots_STEAMSCREENSHOTS_INTERFACE_VERSION003.o cppISteamUGC_STEAMUGC_INTERFACE_VERSION001.o cppISteamUGC_STEAMUGC_INTERFACE_VERSION002.o cppISteamUGC_STEAMUGC_INTERFACE_VERSION003.o cppISteamUGC_STEAMUGC_INTERFACE_VERSION004.o cppISteamUGC_STEAMUGC_INTERFACE_VERSION005.o cppISteamUGC_STEAMUGC_INTERFACE_VERSION006.o cppISteamUGC_STEAMUGC_INTERFACE_VERSION007.o cppISteamUGC_STEAMUGC_INTERFACE_VERSION008.o cppISteamUGC_STEAMUGC_INTERFACE_VERSION009.o cppISteamUGC_STEAMUGC_INTERFACE_VERSION010.o cppISteamUGC_STEAMUGC_INTERFACE_VERSION012.o cppISteamUGC_STEAMUGC_INTERFACE_VERSION013.o cppISteamUGC_STEAMUGC_INTERFACE_VERSION014.o cppISteamUnifiedMessages_STEAMUNIFIEDMESSAGES_INTERFACE_VERSION001.o cppISteamUserStats_STEAMUSERSTATS_INTERFACE_VERSION001.o cppISteamUserStats_STEAMUSERSTATS_INTERFACE_VERSION002.o cppISteamUserStats_STEAMUSERSTATS_INTERFACE_VERSION003.o cppISteamUserStats_STEAMUSERSTATS_INTERFACE_VERSION004.o cppISteamUserStats_STEAMUSERSTATS_INTERFACE_VERSION005.o cppISteamUserStats_STEAMUSERSTATS_INTERFACE_VERSION006.o cppISteamUserStats_STEAMUSERSTATS_INTERFACE_VERSION007.o cppISteamUserStats_STEAMUSERSTATS_INTERFACE_VERSION008.o cppISteamUserStats_STEAMUSERSTATS_INTERFACE_VERSION009.o cppISteamUserStats_STEAMUSERSTATS_INTERFACE_VERSION010.o cppISteamUserStats_STEAMUSERSTATS_INTERFACE_VERSION011.o cppISteamUser_SteamUser004.o cppISteamUser_SteamUser005.o cppISteamUser_SteamUser006.o cppISteamUser_SteamUser007.o cppISteamUser_SteamUser008.o cppISteamUser_SteamUser009.o cppISteamUser_SteamUser010.o cppISteamUser_SteamUser011.o cppISteamUser_SteamUser012.o cppISteamUser_SteamUser013.o cppISteamUser_SteamUser014.o cppISteamUser_SteamUser015.o cppISteamUser_SteamUser016.o cppISteamUser_SteamUser017.o cppISteamUser_SteamUser018.o cppISteamUser_SteamUser019.o cppISteamUser_SteamUser020.o cppISteamUtils_SteamUtils002.o cppISteamUtils_SteamUtils004.o cppISteamUtils_SteamUtils005.o cppISteamUtils_SteamUtils006.o cppISteamUtils_SteamUtils007.o cppISteamUtils_SteamUtils008.o cppISteamUtils_SteamUtils009.o cppISteamVideo_STEAMVIDEO_INTERFACE_V001.o cppISteamVideo_STEAMVIDEO_INTERFACE_V002.o steamclient_manual_144.o steamclient_manual_146.o steamclient_manual_147.o steamclient_manual_148a.o struct_converters_111x.o struct_converters_112.o struct_converters_112x.o struct_converters_113.o struct_converters_114.o struct_converters_115.o struct_converters_116.o struct_converters_116x.o struct_converters_117.o struct_converters_118.o struct_converters_119.o struct_converters_119x.o struct_converters_120.o struct_converters_121.o struct_converters_121x.o struct_converters_122.o struct_converters_123.o struct_converters_123a.o struct_converters_124.o struct_converters_125.o struct_converters_126.o struct_converters_126a.o struct_converters_127.o struct_converters_128.o struct_converters_128x.o struct_converters_129.o struct_converters_129a.o struct_converters_130.o struct_converters_130x.o struct_converters_131.o struct_converters_132.o struct_converters_132x.o struct_converters_133.o struct_converters_133a.o struct_converters_133b.o struct_converters_133x.o struct_converters_134.o struct_converters_135.o struct_converters_135a.o struct_converters_136.o struct_converters_137.o struct_converters_138.o struct_converters_138a.o struct_converters_139.o struct_converters_140.o struct_converters_141.o struct_converters_142.o struct_converters_143.o struct_converters_143x.o struct_converters_143y.o struct_converters_144.o struct_converters_145.o struct_converters_146.o struct_converters_147.o struct_converters_148a.o /usr/bin/ld: steamclient_main.o: in function load_steamclient.part.0':
steamclient_main.c:(.text+0x40f): undefined reference to wine_dlopen' /usr/bin/ld: steamclient_main.c:(.text+0x437): undefined reference to wine_dlsym'
/usr/bin/ld: steamclient_main.c:(.text+0x463): undefined reference to wine_dlsym' /usr/bin/ld: steamclient_main.c:(.text+0x48f): undefined reference to wine_dlsym'
/usr/bin/ld: steamclient_main.c:(.text+0x4bb): undefined reference to wine_dlsym' /usr/bin/ld: steamclient_main.c:(.text+0x4ed): undefined reference to wine_dlsym'
collect2: error: ld returned 1 exit status
winegcc: /usr/bin/g++ failed
make: *** [Makefile:377: lsteamclient.dll.so] Error 2
`

Start by reproducing the reported wineg++ link command and inspect steamclient_main.c at load_steamclient, along with the Makefile target at line 377. Compare the build behavior before and after the Wine 5.11 update. Done means lsteamclient.dll.so builds without undefined references to wine_dlopen or wine_dlsym.