From 9dd563bb129e8dfc210bd7d80ad499189fe6bf37 Mon Sep 17 00:00:00 2001
From: Matthew Justin Bauer <mjbauer95@gmail.com>
Date: Tue, 31 May 2016 09:59:41 -0500
Subject: [PATCH] jsoncpp: enable and fix on darwin (#15845)

---
 pkgs/development/libraries/jsoncpp/default.nix | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/pkgs/development/libraries/jsoncpp/default.nix b/pkgs/development/libraries/jsoncpp/default.nix
index 923d8af59bf..53df8d6e7cf 100644
--- a/pkgs/development/libraries/jsoncpp/default.nix
+++ b/pkgs/development/libraries/jsoncpp/default.nix
@@ -28,6 +28,8 @@ stdenv.mkDerivation rec {
 
   nativeBuildInputs = [ cmake python ];
 
+  CXXFLAGS = "-Wno-shift-negative-value";
+
   cmakeFlags = [
     "-DJSONCPP_LIB_BUILD_SHARED=ON"
     "-DJSONCPP_LIB_BUILD_STATIC=OFF"
@@ -39,6 +41,7 @@ stdenv.mkDerivation rec {
     homepage = https://github.com/open-source-parsers/jsoncpp;
     description = "A simple API to manipulate JSON data in C++";
     maintainers = with stdenv.lib.maintainers; [ ttuegel page ];
+    platforms = stdenv.lib.platforms.all;
     license = stdenv.lib.licenses.mit;
     branch = "1.6";
   };