From 59edab3a476de70a6325e0194aaef23e0f25cc5a Mon Sep 17 00:00:00 2001
From: Mario Rodas <marsam@users.noreply.github.com>
Date: Thu, 19 Dec 2019 04:20:00 -0500
Subject: [PATCH] jsoncpp: fix build on aarch64

---
 pkgs/development/libraries/jsoncpp/default.nix | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/pkgs/development/libraries/jsoncpp/default.nix b/pkgs/development/libraries/jsoncpp/default.nix
index a6eae7a79fa7..72158e186ac2 100644
--- a/pkgs/development/libraries/jsoncpp/default.nix
+++ b/pkgs/development/libraries/jsoncpp/default.nix
@@ -1,4 +1,4 @@
-{ stdenv , fetchFromGitHub , cmake , python }:
+{ stdenv, fetchFromGitHub, cmake, python, fetchpatch }:
 
 stdenv.mkDerivation rec {
   pname = "jsoncpp";
@@ -30,6 +30,14 @@ stdenv.mkDerivation rec {
 
   nativeBuildInputs = [ cmake python ];
 
+  # fix inverted sense in isAnyCharRequiredQuoting on aarch64. See: https://github.com/open-source-parsers/jsoncpp/pull/1120
+  patches = stdenv.lib.optionals stdenv.isAarch64 [
+    (fetchpatch {
+      url = "https://github.com/open-source-parsers/jsoncpp/commit/9093358efae9e5981aa60013487fc7215f040a59.patch";
+      sha256 = "1wiqp70sck2md14sfc0zdkblqk9750cl55ykf9d6b9vs1ifzzzq5";
+     })
+  ];
+
   cmakeFlags = [
     "-DBUILD_SHARED_LIBS=ON"
     "-DBUILD_STATIC_LIBS=OFF"