From 2571390dd39888b54cbdff92a36b533129e1e8fa Mon Sep 17 00:00:00 2001
From: Thiago Kenji Okada <thiagokokada@gmail.com>
Date: Fri, 10 Jan 2025 17:53:53 +0000
Subject: [PATCH] libretro.pcsx2: 0-unstable-2023-01-30 ->
 0-unstable-2025-01-09

See announcement:
https://www.libretro.com/index.php/lrps2-the-new-playstation2-core-with-a-brand-new-lle-renderer/
---
 .../emulators/libretro/cores/pcsx2.nix        | 52 ++++++++-----------
 1 file changed, 22 insertions(+), 30 deletions(-)

diff --git a/pkgs/applications/emulators/libretro/cores/pcsx2.nix b/pkgs/applications/emulators/libretro/cores/pcsx2.nix
index 09a80f4dbe86..31967ab8d4ef 100644
--- a/pkgs/applications/emulators/libretro/cores/pcsx2.nix
+++ b/pkgs/applications/emulators/libretro/cores/pcsx2.nix
@@ -2,62 +2,54 @@
   lib,
   cmake,
   fetchFromGitHub,
-  gcc12Stdenv,
-  gettext,
   libGL,
   libGLU,
-  libaio,
-  libpcap,
-  libpng,
-  libxml2,
   mkLibretroCore,
+  perl,
   pkg-config,
-  xxd,
   xz,
 }:
 mkLibretroCore {
   core = "pcsx2";
-  version = "0-unstable-2023-01-30";
+  version = "0-unstable-2025-01-09";
 
   src = fetchFromGitHub {
     owner = "libretro";
-    repo = "lrps2";
-    rev = "f3c8743d6a42fe429f703b476fecfdb5655a98a9";
-    hash = "sha256-0piCNWX7QbZ58KyTlWp4h1qLxXpi1z6ML8sBHMTvCY4=";
+    repo = "ps2";
+    rev = "397b8f54b92aeffd2dd502c2c9b601305fb1de9d";
+    hash = "sha256-zP4gOxAAWqgmGkilVijY2GF6awD7cbMICfxYSsI1wa0=";
+    fetchSubmodules = true;
   };
 
   extraNativeBuildInputs = [
     cmake
-    gettext
     pkg-config
   ];
+
   extraBuildInputs = [
-    libaio
     libGL
     libGLU
-    libpcap
-    libpng
-    libxml2
+    perl
     xz
-    xxd
   ];
+
+  # libretro/ps2 needs at least those flags to compile, and probably doesn't
+  # work on x86_64-v1
+  # https://github.com/libretro/ps2/blob/397b8f54b92aeffd2dd502c2c9b601305fb1de9d/cmake/BuildParameters.cmake#L101
+  env.NIX_CFLAGS_COMPILE = toString [
+    "-msse"
+    "-msse2"
+    "-msse4.1"
+    "-mfxsr"
+  ];
+
   makefile = "Makefile";
-  cmakeFlags = [ "-DLIBRETRO=ON" ];
-  # remove ccache
-  postPatch = ''
-    substituteInPlace CMakeLists.txt --replace-fail "ccache" ""
-  '';
-  postBuild = "cd pcsx2";
-  # causes redefinition of _FORTIFY_SOURCE
-  hardeningDisable = [ "fortify3" ];
-  # FIXME: multiple build errors with GCC13.
-  # Unlikely to be fixed until we switch to libretro/pcsx2 that is a more
-  # up-to-date port (but still WIP).
-  stdenv = gcc12Stdenv;
+
+  preInstall = "cd bin";
 
   meta = {
     description = "Port of PCSX2 to libretro";
-    homepage = "https://github.com/libretro/lrps2";
+    homepage = "https://github.com/libretro/ps2";
     license = lib.licenses.gpl3Plus;
     platforms = lib.platforms.x86;
   };