From 5516a2b6a14f30788575913fbf998b379b17fc2c Mon Sep 17 00:00:00 2001
From: Will Dietz <w@wdtz.org>
Date: Mon, 3 Jul 2017 14:54:10 -0500
Subject: [PATCH] csmith: Workaround broken libbsd on Darwin

---
 pkgs/top-level/all-packages.nix | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 5088bd5a32a..7681f1aa386 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -6666,6 +6666,9 @@ with pkgs;
 
   csmith = callPackage ../development/tools/misc/csmith {
     inherit (perlPackages) perl SysCPU;
+    # Workaround optional dependency on libbsd that's
+    # currently broken on Darwin.
+    libbsd = if stdenv.isDarwin then null else libbsd;
   };
 
   csslint = callPackage ../development/web/csslint { };