From 341236cd69d89743a6ab6a177115ee9285f1d551 Mon Sep 17 00:00:00 2001
From: ghpzin <ghpzin@gmail.com>
Date: Mon, 8 Dec 2025 00:59:05 +0300
Subject: [PATCH] linphonePackages.bc-mbedtls: fix build with gcc15

- add patches from merged upstream PR included in versions 3.6.4+:
https://www.github.com/Mbed-TLS/mbedtls/pull/10215
https://github.com/Mbed-TLS/mbedtls/commit/d593c54b3cbfc3c806476a725e7d82763da0da9e

Fixes build failure with gcc15:
```
/build/source/library/ssl_tls13_keys.h:14:40:
error: initializer-string for array of 'unsigned char' truncates NUL
terminator but destination lacks 'nonstring' attribute
(9 chars into 8 available) [-Werror=unterminated-string-initialization]
   14 |     MBEDTLS_SSL_TLS1_3_LABEL(finished, "finished") \
      |                                        ^~~~~~~~~~
/build/source/library/ssl_tls13_keys.c:38:13:
note: in definition of macro 'MBEDTLS_SSL_TLS1_3_LABEL'
   38 |     .name = string,
      |             ^~~~~~
/build/source/library/ssl_tls13_keys.c:44:5:
note: in expansion of macro 'MBEDTLS_SSL_TLS1_3_LABEL_LIST'
   44 |     MBEDTLS_SSL_TLS1_3_LABEL_LIST
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
```
---
 .../linphone/bc-mbedtls/default.nix                  | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/pkgs/applications/networking/instant-messengers/linphone/bc-mbedtls/default.nix b/pkgs/applications/networking/instant-messengers/linphone/bc-mbedtls/default.nix
index ad08bf4996b5..9172f6a0519c 100644
--- a/pkgs/applications/networking/instant-messengers/linphone/bc-mbedtls/default.nix
+++ b/pkgs/applications/networking/instant-messengers/linphone/bc-mbedtls/default.nix
@@ -2,6 +2,7 @@
   lib,
   stdenv,
   fetchFromGitLab,
+  fetchpatch,
 
   cmake,
   ninja,
@@ -27,6 +28,17 @@ stdenv.mkDerivation {
     fetchSubmodules = true;
   };
 
+  patches = [
+    # Fix build with gcc15
+    # https://www.github.com/Mbed-TLS/mbedtls/pull/10215
+    (fetchpatch {
+      name = "linphone-mbedtls-fix-unterminated-string-initialization.patch";
+      url = "https://github.com/Mbed-TLS/mbedtls/commit/d593c54b3cbfc3c806476a725e7d82763da0da9e.patch";
+      hash = "sha256-hh2cGzL75fEqlFNhEyL2fI9qsBW2Eq43DdWFD9qLsKE=";
+      excludes = [ "ChangeLog.d/unterminated-string-initialization.txt" ];
+    })
+  ];
+
   nativeBuildInputs = [
     cmake
     ninja