From d860295e116f9aa0f37e2637b5ec4b9c86fdf4d3 Mon Sep 17 00:00:00 2001
From: Michael Reilly <OmnipotentEntity@gmail.com>
Date: Sat, 19 Sep 2020 10:46:02 -0400
Subject: [PATCH] Bump nlohmann-json version to 3.9.1

---
 src/libexpr/json-to-value.cc | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/src/libexpr/json-to-value.cc b/src/libexpr/json-to-value.cc
index 76e1a26bf..9ca5ac86d 100644
--- a/src/libexpr/json-to-value.cc
+++ b/src/libexpr/json-to-value.cc
@@ -115,6 +115,14 @@ public:
     {
         return handle_value<void(Value&, const char*)>(mkString, val.c_str());
     }
+#if NLOHMANN_JSON_VERSION_MAJOR >= 3 && NLOHMANN_JSON_VERSION_MINOR >= 8
+    bool binary(binary_t&)
+    {
+        // This function ought to be unreachable
+        assert(false);
+        return true;
+    }
+#endif
 
     bool start_object(std::size_t len)
     {