From ea5cfaf8e1123610ac29ef988620d06fca49bc89 Mon Sep 17 00:00:00 2001
From: Armeen Mahdian <mahdianarmeen@gmail.com>
Date: Thu, 21 Apr 2022 10:47:50 -0500
Subject: [PATCH] libinjection: patch for python3 builds

---
 .../libraries/libinjection/default.nix           | 16 ++++++++++++----
 1 file changed, 12 insertions(+), 4 deletions(-)

diff --git a/pkgs/development/libraries/libinjection/default.nix b/pkgs/development/libraries/libinjection/default.nix
index 81a1398147b..d4193f32ccc 100644
--- a/pkgs/development/libraries/libinjection/default.nix
+++ b/pkgs/development/libraries/libinjection/default.nix
@@ -1,5 +1,5 @@
-{ lib, stdenv, fetchFromGitHub
-, python2
+{ lib, stdenv, fetchFromGitHub, fetchpatch
+, python3
 }:
 
 stdenv.mkDerivation rec {
@@ -13,11 +13,19 @@ stdenv.mkDerivation rec {
     sha256 = "0chsgam5dqr9vjfhdcp8cgk7la6nf3lq44zs6z6si98cq743550g";
   };
 
-  nativeBuildInputs = [ python2 ];
+  nativeBuildInputs = [ python3 ];
 
   strictDeps = true;
 
-  patchPhase = ''
+  patches = [
+    (fetchpatch {
+      name = "support-python3-for-building";
+      url = "https://raw.githubusercontent.com/sysown/proxysql/bed58f92917eb651b80fd8ffa627a485eb320805/deps/libinjection/update-build-py3.diff";
+      hash = "sha256-SPdf57FIDDNpatWe5pjhAiZl5yPMDEv50k0Wj+eWTEM=";
+    })
+  ];
+
+  postPatch = ''
     patchShebangs src
     substituteInPlace src/Makefile \
       --replace /usr/local $out