From 1b1e681d77dc0452c4b557aa6e10f2e02e0650ca Mon Sep 17 00:00:00 2001
From: Ben Wolsieffer <benwolsieffer@gmail.com>
Date: Sat, 27 Feb 2021 12:23:37 -0500
Subject: [PATCH] spidermonkey_78: fix build on armv7l

Adds a patch from Debian to fix a build failure on armv7l.
---
 pkgs/development/interpreters/spidermonkey/78.nix | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/pkgs/development/interpreters/spidermonkey/78.nix b/pkgs/development/interpreters/spidermonkey/78.nix
index 23f24ca8ba46..aaea0e8b22c8 100644
--- a/pkgs/development/interpreters/spidermonkey/78.nix
+++ b/pkgs/development/interpreters/spidermonkey/78.nix
@@ -1,5 +1,6 @@
 { lib, stdenv
 , fetchurl
+, fetchpatch
 , autoconf213
 , pkg-config
 , perl
@@ -27,6 +28,15 @@ stdenv.mkDerivation rec {
     sha256 = "0451hhjrj9hb6limxim7sbhvw4gs6dd2gmnfxjjx07z3wbgdzwhw";
   };
 
+  patches = [
+    # Fix build failure on armv7l using Debian patch
+    # Upstream bug: https://bugzilla.mozilla.org/show_bug.cgi?id=1526653
+    (fetchpatch {
+      url = "https://salsa.debian.org/mozilla-team/firefox/commit/fd6847c9416f9eebde636e21d794d25d1be8791d.patch";
+      sha256 = "02b7zwm6vxmk61aj79a6m32s1k5sr0hwm3q1j4v6np9jfyd10g1j";
+    })
+  ];
+
   outputs = [ "out" "dev" ];
   setOutputFlags = false; # Configure script only understands --includedir