Fall Guys cannot launch on latest 64bit only builds

[Laitinlok]

It works until wine 10.1.r3. The anticheat client cannot load properly.

[Artewar67]

You are using wine-tkg or proton-tkg?

[LionHeartP]

I suspect this is an issue with EAC. I cannot launch Elden Ring with the latest builds from the Actions Tab (proton arch no package). EAC splash screen throws an "Unexpected Error no.1" or hangs at "Initializing" indefinitely. Works fine with the build which is using the Valve trees (XBE).

[Laitinlok]

You are using wine-tkg or proton-tkg?

Proton tkg with upstream wine

[Laitinlok]

I suspect this is an issue with EAC. I cannot launch Elden Ring with the latest builds from the Actions Tab (proton arch no package). EAC splash screen throws an "Unexpected Error no.1" or hangs at "Initializing" indefinitely. Works fine with the build which is using the Valve trees (XBE).

Yep same issue

[Tk-Glitch]

Some EAC implementations (seemingly most if not all current x64 builds) depend on the wine64 binary naming which as you know got changed with Wine 10.2, breaking compat.
This patch might workaround the issue for now:

diff --git a/configure.ac b/configure.ac
index dd139950e10..c03a5c8e760 100644
--- a/configure.ac
+++ b/configure.ac
@@ -2033,7 +2033,13 @@ fi
 
 dnl **** Platform-specific checks ****
 
-AC_SUBST(WINELOADER_PROGRAMS,"wine")
+case "$HOST_ARCH,$PE_ARCHS" in
+  x86_64,*i386*) wine_binary="wine" ;;
+  x86_64,*) wine_binary="wine64" ;;
+  *) wine_binary="wine" ;;
+esac
+test "$wine_binary" = wine || WINE_IGNORE_FILE(loader/wine)
+AC_SUBST(WINELOADER_PROGRAMS,"$wine_binary")
 
 case $host_os in
   linux*)
@@ -2046,7 +2052,8 @@ esac
 
 if test "$wine_use_preloader" = "yes"
 then
-  WINELOADER_PROGRAMS="$WINELOADER_PROGRAMS wine-preloader"
+  test "$wine_binary" = wine || WINE_IGNORE_FILE(loader/wine-preloader)
+  WINELOADER_PROGRAMS="$WINELOADER_PROGRAMS $wine_binary-preloader"
   AC_DEFINE(HAVE_WINE_PRELOADER, 1, [Define to 1 if the Wine preloader is being used.])
 fi
 
diff --git a/dlls/ntdll/unix/loader.c b/dlls/ntdll/unix/loader.c
index 0bade5b35f0..38c16598822 100644
--- a/dlls/ntdll/unix/loader.c
+++ b/dlls/ntdll/unix/loader.c
@@ -476,7 +476,11 @@ static void init_paths(void)
 
     if ((build_dir = remove_tail( ntdll_dir, "/dlls/ntdll" )))
     {
+#ifdef _WIN64
+        wineloader = build_path( build_dir, "loader/wine64" );
+#else
         wineloader = build_path( build_dir, "loader/wine" );
+#endif
         alt_build_dir = realpath_dirname( build_path( build_dir, "loader-wow64" ));
     }
     else
@@ -484,7 +488,11 @@ static void init_paths(void)
         if (!(dll_dir = remove_tail( ntdll_dir, get_so_dir(current_machine) ))) dll_dir = ntdll_dir;
         bin_dir = build_relative_path( dll_dir, LIBDIR "/wine", BINDIR );
         data_dir = build_relative_path( dll_dir, LIBDIR "/wine", DATADIR "/wine" );
+#ifdef _WIN64
+        wineloader = build_path( ntdll_dir, "wine64" );
+#else
         wineloader = build_path( ntdll_dir, "wine" );
+#endif
     }
 
     set_dll_path();
@@ -514,10 +522,17 @@ char *get_alternate_wineloader( WORD machine )
         machine = get_alt_machine( current_machine );
     }
 
+#ifdef _WIN64
     if (!build_dir)
         asprintf( &ret, "%s%s/wine", dll_dir, get_so_dir( machine ));
     else if (alt_build_dir)
         asprintf( &ret, "%s/loader/wine", alt_build_dir );
+#else
+    if (!build_dir)
+        asprintf( &ret, "%s%s/wine64", dll_dir, get_so_dir( machine ));
+    else if (alt_build_dir)
+        asprintf( &ret, "%s/loader/wine64", alt_build_dir );
+#endif
 
     return ret;
 }
diff --git a/loader/Makefile.in b/loader/Makefile.in
index a9ca82f3321..01a48b01a53 100644
--- a/loader/Makefile.in
+++ b/loader/Makefile.in
@@ -19,3 +19,11 @@ wine_LDFLAGS = $(WINELOADER_LDFLAGS) $(LDEXECFLAGS) $(PTHREAD_LIBS)
 wine_preloader_OBJS = preloader.o preloader_mac.o
 wine_preloader_DEPS = $(WINELOADER_DEPENDS)
 wine_preloader_LDFLAGS = $(WINEPRELOADER_LDFLAGS)
+
+wine64_OBJS = main.o
+wine64_DEPS = $(WINELOADER_DEPENDS)
+wine64_LDFLAGS = $(WINELOADER_LDFLAGS) $(LDEXECFLAGS) $(PTHREAD_LIBS)
+
+wine64_preloader_OBJS = preloader.o preloader_mac.o
+wine64_preloader_DEPS = $(WINELOADER_DEPENDS)
+wine64_preloader_LDFLAGS = $(WINEPRELOADER_LDFLAGS)

[Laitinlok]

Some EAC implementations (seemingly most if not all current x64 builds) depend on the wine64 binary naming which as you know got changed with Wine 10.2, breaking compat.
This patch might workaround the issue for now:

diff --git a/configure.ac b/configure.ac
index dd139950e10..c03a5c8e760 100644
--- a/configure.ac
+++ b/configure.ac
@@ -2033,7 +2033,13 @@ fi
 
 dnl **** Platform-specific checks ****
 
-AC_SUBST(WINELOADER_PROGRAMS,"wine")
+case "$HOST_ARCH,$PE_ARCHS" in
+  x86_64,*i386*) wine_binary="wine" ;;
+  x86_64,*) wine_binary="wine64" ;;
+  *) wine_binary="wine" ;;
+esac
+test "$wine_binary" = wine || WINE_IGNORE_FILE(loader/wine)
+AC_SUBST(WINELOADER_PROGRAMS,"$wine_binary")
 
 case $host_os in
   linux*)
@@ -2046,7 +2052,8 @@ esac
 
 if test "$wine_use_preloader" = "yes"
 then
-  WINELOADER_PROGRAMS="$WINELOADER_PROGRAMS wine-preloader"
+  test "$wine_binary" = wine || WINE_IGNORE_FILE(loader/wine-preloader)
+  WINELOADER_PROGRAMS="$WINELOADER_PROGRAMS $wine_binary-preloader"
   AC_DEFINE(HAVE_WINE_PRELOADER, 1, [Define to 1 if the Wine preloader is being used.])
 fi
 
diff --git a/dlls/ntdll/unix/loader.c b/dlls/ntdll/unix/loader.c
index 0bade5b35f0..38c16598822 100644
--- a/dlls/ntdll/unix/loader.c
+++ b/dlls/ntdll/unix/loader.c
@@ -476,7 +476,11 @@ static void init_paths(void)
 
     if ((build_dir = remove_tail( ntdll_dir, "/dlls/ntdll" )))
     {
+#ifdef _WIN64
+        wineloader = build_path( build_dir, "loader/wine64" );
+#else
         wineloader = build_path( build_dir, "loader/wine" );
+#endif
         alt_build_dir = realpath_dirname( build_path( build_dir, "loader-wow64" ));
     }
     else
@@ -484,7 +488,11 @@ static void init_paths(void)
         if (!(dll_dir = remove_tail( ntdll_dir, get_so_dir(current_machine) ))) dll_dir = ntdll_dir;
         bin_dir = build_relative_path( dll_dir, LIBDIR "/wine", BINDIR );
         data_dir = build_relative_path( dll_dir, LIBDIR "/wine", DATADIR "/wine" );
+#ifdef _WIN64
+        wineloader = build_path( ntdll_dir, "wine64" );
+#else
         wineloader = build_path( ntdll_dir, "wine" );
+#endif
     }
 
     set_dll_path();
@@ -514,10 +522,17 @@ char *get_alternate_wineloader( WORD machine )
         machine = get_alt_machine( current_machine );
     }
 
+#ifdef _WIN64
     if (!build_dir)
         asprintf( &ret, "%s%s/wine", dll_dir, get_so_dir( machine ));
     else if (alt_build_dir)
         asprintf( &ret, "%s/loader/wine", alt_build_dir );
+#else
+    if (!build_dir)
+        asprintf( &ret, "%s%s/wine64", dll_dir, get_so_dir( machine ));
+    else if (alt_build_dir)
+        asprintf( &ret, "%s/loader/wine64", alt_build_dir );
+#endif
 
     return ret;
 }
diff --git a/loader/Makefile.in b/loader/Makefile.in
index a9ca82f3321..01a48b01a53 100644
--- a/loader/Makefile.in
+++ b/loader/Makefile.in
@@ -19,3 +19,11 @@ wine_LDFLAGS = $(WINELOADER_LDFLAGS) $(LDEXECFLAGS) $(PTHREAD_LIBS)
 wine_preloader_OBJS = preloader.o preloader_mac.o
 wine_preloader_DEPS = $(WINELOADER_DEPENDS)
 wine_preloader_LDFLAGS = $(WINEPRELOADER_LDFLAGS)
+
+wine64_OBJS = main.o
+wine64_DEPS = $(WINELOADER_DEPENDS)
+wine64_LDFLAGS = $(WINELOADER_LDFLAGS) $(LDEXECFLAGS) $(PTHREAD_LIBS)
+
+wine64_preloader_OBJS = preloader.o preloader_mac.o
+wine64_preloader_DEPS = $(WINELOADER_DEPENDS)
+wine64_preloader_LDFLAGS = $(WINEPRELOADER_LDFLAGS)

Where do you add this?

[LionHeartP]

@Tk-Glitch
Yes this patch works ty so much!

[Tk-Glitch]

@Laitinlok Copy-paste to a plain file with the .mypatch extension, then drop it in the wine-tkg-git/wine-tkg-git/wine-tkg-userpatches/ dir, then launch a fresh compilation. You'll get a prompt regarding the patch during the source preparation phase.