From ce8a55eb34b8876dbca588aedba88439da5ca0b3 Mon Sep 17 00:00:00 2001
From: Mikael Voss <mvs@nyantec.com>
Date: Tue, 11 Feb 2025 17:59:00 +0100
Subject: [PATCH 1/5] lpcnetfreedv: provide update script

---
 pkgs/by-name/lp/lpcnetfreedv/package.nix | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/pkgs/by-name/lp/lpcnetfreedv/package.nix b/pkgs/by-name/lp/lpcnetfreedv/package.nix
index ea1815a5731e..50860d1335cd 100644
--- a/pkgs/by-name/lp/lpcnetfreedv/package.nix
+++ b/pkgs/by-name/lp/lpcnetfreedv/package.nix
@@ -4,6 +4,7 @@
   fetchFromGitHub,
   fetchurl,
   cmake,
+  nix-update-script,
 }:
 
 let
@@ -31,6 +32,10 @@ stdenv.mkDerivation rec {
     ln -s ${data} build/lpcnet_${dataVersion}.tgz
   '';
 
+  passthru.updateScript = nix-update-script {
+    extraArgs = [ "--version=branch" ];
+  };
+
   meta = with lib; {
     homepage = "https://freedv.org/";
     description = "Experimental Neural Net speech coding for FreeDV";

From 18ad364f55eff8f310780e618fa99013246af02b Mon Sep 17 00:00:00 2001
From: Mikael Voss <mvs@nyantec.com>
Date: Fri, 14 Feb 2025 12:25:01 +0100
Subject: [PATCH 2/5] lpcnetfreedv: remove unnecessary rec

---
 pkgs/by-name/lp/lpcnetfreedv/package.nix | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pkgs/by-name/lp/lpcnetfreedv/package.nix b/pkgs/by-name/lp/lpcnetfreedv/package.nix
index 50860d1335cd..37d40ebada4e 100644
--- a/pkgs/by-name/lp/lpcnetfreedv/package.nix
+++ b/pkgs/by-name/lp/lpcnetfreedv/package.nix
@@ -14,7 +14,7 @@ let
     sha256 = "sha256-UJRAkkdR/dh/+qVoPuPd3ZN69cgzuRBMzOZdUWFJJsg=";
   };
 in
-stdenv.mkDerivation rec {
+stdenv.mkDerivation {
   pname = "lpcnetfreedv";
   version = "unstable-2022-08-22";
 

From 9e1a6426bf2fcdeaf0cf28be2c3279860cac81c2 Mon Sep 17 00:00:00 2001
From: Mikael Voss <mvs@nyantec.com>
Date: Fri, 14 Feb 2025 12:25:43 +0100
Subject: [PATCH 3/5] lpcnetfreedv: remove use of with lib;

---
 pkgs/by-name/lp/lpcnetfreedv/package.nix | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/pkgs/by-name/lp/lpcnetfreedv/package.nix b/pkgs/by-name/lp/lpcnetfreedv/package.nix
index 37d40ebada4e..a4c37279f2ee 100644
--- a/pkgs/by-name/lp/lpcnetfreedv/package.nix
+++ b/pkgs/by-name/lp/lpcnetfreedv/package.nix
@@ -36,11 +36,11 @@ stdenv.mkDerivation {
     extraArgs = [ "--version=branch" ];
   };
 
-  meta = with lib; {
+  meta = {
     homepage = "https://freedv.org/";
     description = "Experimental Neural Net speech coding for FreeDV";
-    license = licenses.bsd3;
-    maintainers = with maintainers; [ mvs ];
-    platforms = platforms.all;
+    license = lib.licenses.bsd3;
+    maintainers = with lib.maintainers; [ mvs ];
+    platforms = lib.platforms.all;
   };
 }

From 7e8cf0e3fdaf4fdd49cbcbf1742e1c96e8c0d53a Mon Sep 17 00:00:00 2001
From: Mikael Voss <mvs@nyantec.com>
Date: Fri, 14 Feb 2025 12:27:26 +0100
Subject: [PATCH 4/5] lpcnetfreedv: unstable-2022-08-22 ->
 0.5-unstable-2025-01-19

---
 pkgs/by-name/lp/lpcnetfreedv/package.nix | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/pkgs/by-name/lp/lpcnetfreedv/package.nix b/pkgs/by-name/lp/lpcnetfreedv/package.nix
index a4c37279f2ee..3a6ed87b37da 100644
--- a/pkgs/by-name/lp/lpcnetfreedv/package.nix
+++ b/pkgs/by-name/lp/lpcnetfreedv/package.nix
@@ -16,13 +16,13 @@ let
 in
 stdenv.mkDerivation {
   pname = "lpcnetfreedv";
-  version = "unstable-2022-08-22";
+  version = "0.5-unstable-2025-01-19";
 
   src = fetchFromGitHub {
     owner = "drowe67";
     repo = "LPCNet";
-    rev = "67a6eb74d0c07faddcdce199856862cc45779d25";
-    sha256 = "sha256-eHYZoDgoZBuuLvQn9X7H/zmK5onOAniOgY1/8RVn8gk=";
+    rev = "c8e51ac5e2fe674849cb53e7da44689b572cc246";
+    sha256 = "sha256-0Knoym+deTuFAyJrrD55MijVh6DlhJp3lss66BJUHiA=";
   };
 
   nativeBuildInputs = [ cmake ];

From 09eec57ad12da10666dad2252f127c663a74d2f6 Mon Sep 17 00:00:00 2001
From: Weijia Wang <9713184+wegank@users.noreply.github.com>
Date: Fri, 14 Feb 2025 13:40:34 +0100
Subject: [PATCH 5/5] lpcnetfreedv: fix darwin build

---
 pkgs/by-name/lp/lpcnetfreedv/darwin.patch | 13 +++++++++++++
 pkgs/by-name/lp/lpcnetfreedv/package.nix  |  5 +++++
 2 files changed, 18 insertions(+)
 create mode 100644 pkgs/by-name/lp/lpcnetfreedv/darwin.patch

diff --git a/pkgs/by-name/lp/lpcnetfreedv/darwin.patch b/pkgs/by-name/lp/lpcnetfreedv/darwin.patch
new file mode 100644
index 000000000000..a82ac9b330d5
--- /dev/null
+++ b/pkgs/by-name/lp/lpcnetfreedv/darwin.patch
@@ -0,0 +1,13 @@
+diff --git a/CMakeLists.txt b/CMakeLists.txt
+index 1600871..1536c55 100644
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -158,7 +158,7 @@ elseif(${SSE} AND (${SSE_PRESENT} OR ${SSE_PRESENT} GREATER 0))
+ # AVX and AVX2 machines will also match on SSE
+     message(STATUS "sse processor flags found or enabled.")
+     set(LPCNET_C_PROC_FLAGS -msse4.1)
+-elseif(${NEON} AND (${NEON_PRESENT} OR ${NEON_PRESENT} GREATER 0))
++elseif(${NEON} AND (${NEON_PRESENT} OR ${NEON_PRESENT} GREATER 0) AND NOT APPLE)
+     # RPi / ARM 32bit
+     message(STATUS "neon processor flags found or enabled.")
+     set(LPCNET_C_PROC_FLAGS -mfpu=neon -march=armv8-a -mtune=cortex-a53)
diff --git a/pkgs/by-name/lp/lpcnetfreedv/package.nix b/pkgs/by-name/lp/lpcnetfreedv/package.nix
index 3a6ed87b37da..bfc773ad47cd 100644
--- a/pkgs/by-name/lp/lpcnetfreedv/package.nix
+++ b/pkgs/by-name/lp/lpcnetfreedv/package.nix
@@ -27,6 +27,11 @@ stdenv.mkDerivation {
 
   nativeBuildInputs = [ cmake ];
 
+  patches = [
+    # extracted from https://github.com/drowe67/LPCNet/pull/59
+    ./darwin.patch
+  ];
+
   postPatch = ''
     mkdir build
     ln -s ${data} build/lpcnet_${dataVersion}.tgz