From 05526810bb2c97152ab5fbbaf4715c72f88fcbe7 Mon Sep 17 00:00:00 2001
From: Thiago Kenji Okada <thiagokokada@gmail.com>
Date: Mon, 25 Sep 2023 21:49:41 +0100
Subject: [PATCH 1/3] beetle-pce: init at unstable-2023-09-24

---
 pkgs/applications/emulators/retroarch/cores.nix      | 12 +++++++++++-
 pkgs/applications/emulators/retroarch/hashes.json    |  6 ++++++
 .../applications/emulators/retroarch/update_cores.py |  1 +
 3 files changed, 18 insertions(+), 1 deletion(-)

diff --git a/pkgs/applications/emulators/retroarch/cores.nix b/pkgs/applications/emulators/retroarch/cores.nix
index 216d9c14df20..a06573d0af53 100644
--- a/pkgs/applications/emulators/retroarch/cores.nix
+++ b/pkgs/applications/emulators/retroarch/cores.nix
@@ -100,12 +100,22 @@ in
     };
   };
 
+  beetle-pce = mkLibretroCore {
+    core = "mednafen-pce";
+    src = getCoreSrc "beetle-pce";
+    makefile = "Makefile";
+    meta = {
+      description = "Port of Mednafen's PC Engine core to libretro";
+      license = lib.licenses.gpl2Only;
+    };
+  };
+
   beetle-pce-fast = mkLibretroCore {
     core = "mednafen-pce-fast";
     src = getCoreSrc "beetle-pce-fast";
     makefile = "Makefile";
     meta = {
-      description = "Port of Mednafen's PC Engine core to libretro";
+      description = "Port of Mednafen's PC Engine fast core to libretro";
       license = lib.licenses.gpl2Only;
     };
   };
diff --git a/pkgs/applications/emulators/retroarch/hashes.json b/pkgs/applications/emulators/retroarch/hashes.json
index 0ee7ff4d7931..f1099967fe78 100644
--- a/pkgs/applications/emulators/retroarch/hashes.json
+++ b/pkgs/applications/emulators/retroarch/hashes.json
@@ -29,6 +29,12 @@
         "rev": "65460e3a9ad529f6901caf669abbda11f437ab55",
         "hash": "sha256-+xfD1ZMKtbv5Lp12+5RM7Vl3eEF38kykKW8wj/2EN5w="
     },
+    "beetle-pce": {
+        "owner": "libretro",
+        "repo": "beetle-pce-libretro",
+        "rev": "541463bd937dad175aec09c2a0c8d6a52d175386",
+        "hash": "sha256-wWS9reb6aN71Q7OlGst+32T8XX1yMCSOHUKHkXht3hg="
+    },
     "beetle-pce-fast": {
         "owner": "libretro",
         "repo": "beetle-pce-fast-libretro",
diff --git a/pkgs/applications/emulators/retroarch/update_cores.py b/pkgs/applications/emulators/retroarch/update_cores.py
index 8e45b7f4fdf3..5348092c5247 100755
--- a/pkgs/applications/emulators/retroarch/update_cores.py
+++ b/pkgs/applications/emulators/retroarch/update_cores.py
@@ -17,6 +17,7 @@ CORES = {
     "beetle-gba": {"repo": "beetle-gba-libretro"},
     "beetle-lynx": {"repo": "beetle-lynx-libretro"},
     "beetle-ngp": {"repo": "beetle-ngp-libretro"},
+    "beetle-pce": {"repo": "beetle-pce-libretro"},
     "beetle-pce-fast": {"repo": "beetle-pce-fast-libretro"},
     "beetle-pcfx": {"repo": "beetle-pcfx-libretro"},
     "beetle-psx": {"repo": "beetle-psx-libretro"},

From 4bb18351808181ab8def61fa511194adc3988f4b Mon Sep 17 00:00:00 2001
From: Thiago Kenji Okada <thiagokokada@gmail.com>
Date: Mon, 25 Sep 2023 22:14:44 +0100
Subject: [PATCH 2/3] libretro.mame: fix build

---
 pkgs/applications/emulators/retroarch/cores.nix | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/pkgs/applications/emulators/retroarch/cores.nix b/pkgs/applications/emulators/retroarch/cores.nix
index a06573d0af53..2f055299adfe 100644
--- a/pkgs/applications/emulators/retroarch/cores.nix
+++ b/pkgs/applications/emulators/retroarch/cores.nix
@@ -516,15 +516,11 @@ in
     core = "mame";
     extraNativeBuildInputs = [ python3 ];
     extraBuildInputs = [ alsa-lib libGLU libGL ];
+    # Setting this is breaking compilation of src/3rdparty/genie for some reason
+    makeFlags = [ "ARCH=" ];
     meta = {
       description = "Port of MAME to libretro";
       license = with lib.licenses; [ bsd3 gpl2Plus ];
-      # Build fail with errors:
-      # gcc: warning: <arch>: linker input file unused because linking not done
-      # gcc: error: <arch>: linker input file not found: No such file or directory
-      # Removing it from platforms instead of marking as broken to allow
-      # retroarchFull to be built
-      platforms = [ ];
     };
   };
 

From c9fc96a159d9fc039cb848b1f247c5c41859473d Mon Sep 17 00:00:00 2001
From: Thiago Kenji Okada <thiagokokada@gmail.com>
Date: Mon, 25 Sep 2023 23:54:45 +0100
Subject: [PATCH 3/3] libretro.citra: make build reproducible

---
 pkgs/applications/emulators/retroarch/cores.nix | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/pkgs/applications/emulators/retroarch/cores.nix b/pkgs/applications/emulators/retroarch/cores.nix
index 2f055299adfe..d67ae6b5318e 100644
--- a/pkgs/applications/emulators/retroarch/cores.nix
+++ b/pkgs/applications/emulators/retroarch/cores.nix
@@ -301,7 +301,11 @@ in
     core = "citra";
     extraBuildInputs = [ libGLU libGL boost ffmpeg nasm ];
     makefile = "Makefile";
-    makeFlags = [ "HAVE_FFMPEG_STATIC=0" ];
+    makeFlags = [
+      "HAVE_FFMPEG_STATIC=0"
+      # https://github.com/libretro/citra/blob/1a66174355b5ed948de48ef13c0ed508b6d6169f/Makefile#L90
+      "BUILD_DATE=01/01/1970_00:00"
+    ];
     meta = {
       description = "Port of Citra to libretro";
       license = lib.licenses.gpl2Plus;