From 55444ed07f9512cda681b6a0cc2cc7a6e5241c0e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Sandro=20J=C3=A4ckel?= <sandro.jaeckel@gmail.com>
Date: Sat, 9 Jan 2021 21:59:35 +0100
Subject: [PATCH] nasc: Fix compilation with gcc10

---
 pkgs/applications/science/math/nasc/default.nix | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/pkgs/applications/science/math/nasc/default.nix b/pkgs/applications/science/math/nasc/default.nix
index 40406cc45889..37173f819785 100644
--- a/pkgs/applications/science/math/nasc/default.nix
+++ b/pkgs/applications/science/math/nasc/default.nix
@@ -1,6 +1,7 @@
 { lib, stdenv
 , fetchFromGitHub
 , pkgconfig
+, fetchpatch
 , python3
 , meson
 , ninja
@@ -31,6 +32,16 @@ stdenv.mkDerivation rec {
     fetchSubmodules = true;
   };
 
+  patches = [
+    # fix compilation with gcc10
+    (fetchpatch {
+      url = "https://github.com/parnold-x/libqalculate/commit/4fa8f2cceada128ef19f82407226b2c230b780d5.patch";
+      extraPrefix = "subprojects/libqalculate/";
+      stripLen = "1";
+      sha256 = "0kbff623zl0s6yx5avx068f2apwzxzvihjahja4qhlkqkhhzj9dm";
+    })
+  ];
+
   nativeBuildInputs = [
     glib # post_install.py
     gtk3 # post_install.py