From 51e69b6cafaea692e3b788269a8bb262d1537a5b Mon Sep 17 00:00:00 2001
From: K900 <me@0upti.me>
Date: Tue, 27 Jun 2023 09:51:22 +0300
Subject: [PATCH] wine: allow building with experimental wow64 mode

Allows running 32-bit applications on 64-bit native Wine, with no 32-bit libs on the system.
Works at least well enough to run pkgsCross.mingw32.hello.
---
 pkgs/applications/emulators/wine/packages.nix | 11 +++++++++++
 pkgs/top-level/all-packages.nix               |  1 +
 2 files changed, 12 insertions(+)

diff --git a/pkgs/applications/emulators/wine/packages.nix b/pkgs/applications/emulators/wine/packages.nix
index dcdb75626de1..21e0db3e7b60 100644
--- a/pkgs/applications/emulators/wine/packages.nix
+++ b/pkgs/applications/emulators/wine/packages.nix
@@ -42,4 +42,15 @@ in with src; {
     platforms = [ "x86_64-linux" ];
     mainProgram = "wine64";
   };
+  wineWow64 = callPackage ./base.nix {
+    pname = "wine-wow64";
+    inherit src version supportFlags patches moltenvk;
+    pkgArches = [ pkgs ];
+    mingwGccs = with pkgsCross; [ mingw32.buildPackages.gcc mingwW64.buildPackages.gcc ];
+    geckos = [ gecko64 ];
+    monos =  [ mono ];
+    configureFlags = [ "--enable-archs=x86_64,i386" ];
+    platforms = [ "x86_64-linux" "x86_64-darwin" ];
+    mainProgram = "wine";
+  };
 }
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index b85950f1e450..77e2cb8d97c3 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -40414,6 +40414,7 @@ with pkgs;
   winePackages = recurseIntoAttrs (winePackagesFor (config.wine.build or "wine32"));
   wine64Packages = recurseIntoAttrs (winePackagesFor "wine64");
   wineWowPackages = recurseIntoAttrs (winePackagesFor "wineWow");
+  wineWow64Packages = recurseIntoAttrs (winePackagesFor "wineWow64");
 
   wine = winePackages.full;
   wine64 = wine64Packages.full;