From b36d5172cb2cd99f8ae5262b3e3536cceac76b50 Mon Sep 17 00:00:00 2001
From: Sergei Trofimovich <slyich@gmail.com>
Date: Thu, 26 May 2022 18:36:10 +0100
Subject: [PATCH] src/libutil/json.cc: add missing <cstdint> include for gcc-13

Without the change llvm build fails on this week's gcc-13 snapshot as:

    src/libutil/json.cc: In function 'void nix::toJSON(std::ostream&, const char*, const char*)':
    src/libutil/json.cc:33:22: error: 'uint16_t' was not declared in this scope
       33 |             put(hex[(uint16_t(*i) >> 12) & 0xf]);
          |                      ^~~~~~~~
    src/libutil/json.cc:5:1: note: 'uint16_t' is defined in header '<cstdint>'; did you forget to '#include <cstdint>'?
        4 | #include <cstring>
      +++ |+#include <cstdint>
        5 |
---
 src/libutil/json.cc | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/libutil/json.cc b/src/libutil/json.cc
index 3a981376f..b0a5d7e75 100644
--- a/src/libutil/json.cc
+++ b/src/libutil/json.cc
@@ -1,6 +1,7 @@
 #include "json.hh"
 
 #include <iomanip>
+#include <cstdint>
 #include <cstring>
 
 namespace nix {