From 4a605161b37c010175a441b6ac0829ff1738aed2 Mon Sep 17 00:00:00 2001
From: Will Dietz <w@wdtz.org>
Date: Tue, 6 Sep 2016 13:44:46 -0500
Subject: [PATCH] iperf: Fix build with musl.

---
 pkgs/tools/networking/iperf/3.nix | 19 ++++++++++++++++++-
 1 file changed, 18 insertions(+), 1 deletion(-)

diff --git a/pkgs/tools/networking/iperf/3.nix b/pkgs/tools/networking/iperf/3.nix
index d69b52a50014..b9e47ecd7f90 100644
--- a/pkgs/tools/networking/iperf/3.nix
+++ b/pkgs/tools/networking/iperf/3.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchurl, openssl }:
+{ stdenv, fetchurl, openssl, fetchpatch }:
 
 stdenv.mkDerivation rec {
   name = "iperf-3.3";
@@ -10,6 +10,23 @@ stdenv.mkDerivation rec {
 
   buildInputs = [ openssl ];
 
+  preConfigure = stdenv.lib.optionalString stdenv.hostPlatform.isMusl ''
+    NIX_CFLAGS_COMPILE+=" -D_GNU_SOURCE"
+  '';
+
+  patches = stdenv.lib.optionals stdenv.hostPlatform.isMusl [
+    (fetchpatch {
+      url = "http://git.alpinelinux.org/cgit/aports/plain/main/iperf3/build-fixes.patch";
+      name = "fix-musl-build.patch";
+      sha256 = "0zvfjnqdldh6rc6qggyb310swdnl9qk0m3z1kklnqzgjsh8dskvl";
+    })
+    (fetchpatch {
+      url = "http://git.alpinelinux.org/cgit/aports/plain/main/iperf3/remove-pg-flags.patch";
+      name = "remove-pg-flags.patch";
+      sha256 = "0lnczhass24kgq59drgdipnhjnw4l1cy6gqza7f2ah1qr4q104rm";
+    })
+];
+
   postInstall = ''
     ln -s iperf3 $out/bin/iperf
   '';