From f77fd13576f1446419c7cf35772e444ca869a066 Mon Sep 17 00:00:00 2001
From: Xiangyan Sun <wishstudio@gmail.com>
Date: Mon, 20 Apr 2026 22:58:10 -0700
Subject: [PATCH] xmagnify: fix build with gcc15

---
 pkgs/by-name/xm/xmagnify/package.nix | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/pkgs/by-name/xm/xmagnify/package.nix b/pkgs/by-name/xm/xmagnify/package.nix
index 8e08eb4f0cca..eb9abf8515dc 100644
--- a/pkgs/by-name/xm/xmagnify/package.nix
+++ b/pkgs/by-name/xm/xmagnify/package.nix
@@ -17,7 +17,11 @@ stdenv.mkDerivation (finalAttrs: {
     sha256 = "1ngnp5f5zl3v35vhbdyjpymy6mwrs0476fm5nd7dzkba7n841jdh";
   };
 
-  prePatch = "substituteInPlace ./Makefile --replace /usr $out";
+  prePatch = ''
+    substituteInPlace Makefile --replace-fail /usr $out
+    # gcc15
+    substituteInPlace main.c --replace-fail 'handler ()' 'handler (int sig)'
+  '';
 
   buildInputs = [
     libx11