From 5acf8ae51bff2ea0ce368434528a1f95b0f6eeab Mon Sep 17 00:00:00 2001
From: Katalin Rebhan <me@dblsaiko.net>
Date: Sun, 21 Sep 2025 22:31:17 +0200
Subject: [PATCH 1/2] open5gs: use usrsctp on non-Linux

This is the library Open5GS suggests to use for building on macOS.
Since it's portable, use everywhere that isn't Linux.
---
 pkgs/by-name/op/open5gs/package.nix | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/pkgs/by-name/op/open5gs/package.nix b/pkgs/by-name/op/open5gs/package.nix
index 5cd935064901..3b11a43d651c 100644
--- a/pkgs/by-name/op/open5gs/package.nix
+++ b/pkgs/by-name/op/open5gs/package.nix
@@ -21,6 +21,7 @@
   curl,
   libtins,
   mongosh,
+  usrsctp,
 }:
 
 stdenv.mkDerivation (finalAttrs: {
@@ -75,13 +76,18 @@ stdenv.mkDerivation (finalAttrs: {
     libyaml
     libmicrohttpd
     libgcrypt
-    lksctp-tools
     libidn
     openssl
     curl
     libtins
     gnutls
     libnghttp2.dev
+  ]
+  ++ lib.optionals stdenv.isLinux [
+    lksctp-tools
+  ]
+  ++ lib.optionals (!stdenv.isLinux) [
+    usrsctp
   ];
 
   # For subproject

From 6f420216e550e4b09f59642ae374763fd51027f9 Mon Sep 17 00:00:00 2001
From: Katalin Rebhan <me@dblsaiko.net>
Date: Sun, 21 Sep 2025 22:31:17 +0200
Subject: [PATCH 2/2] open5gs: remove extra compiler flags

Seems to be no longer needed with GCC and additionally breaks the
build with Clang.
---
 pkgs/by-name/op/open5gs/package.nix | 8 --------
 1 file changed, 8 deletions(-)

diff --git a/pkgs/by-name/op/open5gs/package.nix b/pkgs/by-name/op/open5gs/package.nix
index 3b11a43d651c..d4e30914a6f8 100644
--- a/pkgs/by-name/op/open5gs/package.nix
+++ b/pkgs/by-name/op/open5gs/package.nix
@@ -90,14 +90,6 @@ stdenv.mkDerivation (finalAttrs: {
     usrsctp
   ];
 
-  # For subproject
-  env = {
-    NIX_CFLAGS_COMPILE = toString [
-      "-Wno-error=array-bounds"
-      "-Wno-error=stringop-overflow"
-    ];
-  };
-
   preConfigure = ''
     cp -R --no-preserve=mode,ownership ${finalAttrs.diameter} subprojects/freeDiameter
     cp -R --no-preserve=mode,ownership ${finalAttrs.libtins} subprojects/libtins