From b0d6c67505e1df13220c29970cd16e24873f986b Mon Sep 17 00:00:00 2001
From: Shea Levy <shea@shealevy.com>
Date: Wed, 28 Feb 2018 12:10:11 -0500
Subject: [PATCH] perlPackages.JSON: Fix cross-compilation.

---
 pkgs/top-level/perl-packages.nix | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/pkgs/top-level/perl-packages.nix b/pkgs/top-level/perl-packages.nix
index c92a55721788..39a7a55b30b3 100644
--- a/pkgs/top-level/perl-packages.nix
+++ b/pkgs/top-level/perl-packages.nix
@@ -7646,6 +7646,13 @@ let self = _self // overrides; _self = with self; {
       url = mirror://cpan/authors/id/M/MA/MAKAMAKA/JSON-2.90.tar.gz;
       sha256 = "127yppvr17qik9pkd1vy901hs4l13kg6rhp76jdgcyask35v7nsd";
     };
+    preConfigure = ''
+      cp lib/JSON/backportPP.pm{,orig}
+      echo "1;" > lib/JSON/backportPP.pm
+    '';
+    postConfigure = ''
+      cp lib/JSON/backportPP.pm{,orig}
+    '';
     buildInputs = [ TestPod ];
     meta = {
       description = "JSON (JavaScript Object Notation) encoder/decoder";