From 5775813f70bfd509eb1cb3896e1574c3bbbfa6b3 Mon Sep 17 00:00:00 2001
From: Sergei Trofimovich <slyich@gmail.com>
Date: Sat, 26 Nov 2022 10:59:10 +0000
Subject: [PATCH] httping: pull upstream fix for darwin

Without the change build fails as:

    clang -Wall -W -Wextra -pedantic -D_FORTIFY_SOURCE=2  -DVERSION=\"2.9\" -DLOCALEDIR=\"/usr/share/locale\" -DNC -DFW -D_DEBUG -ggdb   -c -o nc.o nc.c
    In file included from nc.c:22:
    ./utils.h:19:15: error: unknown type name 'useconds_t'
    void myusleep(useconds_t v);
                  ^
    make: *** [<builtin>: nc.o] Error 1

Closes: https://github.com/NixOS/nixpkgs/issues/202946
---
 pkgs/tools/networking/httping/default.nix | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/pkgs/tools/networking/httping/default.nix b/pkgs/tools/networking/httping/default.nix
index 195f739aa5a..5a3b8e76c27 100644
--- a/pkgs/tools/networking/httping/default.nix
+++ b/pkgs/tools/networking/httping/default.nix
@@ -1,6 +1,7 @@
 { lib
 , stdenv
 , fetchFromGitHub
+, fetchpatch
 , fftw ? null
 , gettext
 , libintl
@@ -19,6 +20,16 @@ stdenv.mkDerivation rec {
     hash = "sha256-aExTXXtW03UKMuMjTMx1k/MUpcRMh1PdSPkDGH+Od70=";
   };
 
+  patches = [
+    # Pull upstream fix for missing <unistd.h>
+    #   https://github.com/folkertvanheusden/HTTPing/pull/8
+    (fetchpatch {
+      name = "add-unistd.patch";
+      url = "https://github.com/folkertvanheusden/HTTPing/commit/aad3c275686344fe9a235faeac4ee3832f3aa8d5.patch";
+      hash = "sha256-bz3AMQTSfSTwUyf9WbkAFWVmFo06ei+Qd55x+RRDREY=";
+    })
+  ];
+
   nativeBuildInputs = [
     gettext
   ];