From a4f433c03ccba743727e550edee80653ea3ad2ca Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Edward=20Tj=C3=B6rnhammar?= <ed@cflags.cc>
Date: Tue, 23 Jan 2018 11:58:41 +0100
Subject: [PATCH] i2pd: expose flags

---
 pkgs/tools/networking/i2pd/default.nix | 19 ++++++++++++++++---
 1 file changed, 16 insertions(+), 3 deletions(-)

diff --git a/pkgs/tools/networking/i2pd/default.nix b/pkgs/tools/networking/i2pd/default.nix
index 251268b6f30..bd98eca5354 100644
--- a/pkgs/tools/networking/i2pd/default.nix
+++ b/pkgs/tools/networking/i2pd/default.nix
@@ -1,4 +1,11 @@
-{ stdenv, fetchFromGitHub, fetchpatch, boost, zlib, openssl }:
+{ stdenv, fetchFromGitHub, fetchpatch
+, boost, zlib, openssl
+, upnpSupport ? true, miniupnpc ? null
+, aesniSupport ? false
+, avxSupport ? false
+}:
+
+assert upnpSupport -> miniupnpc != null;
 
 stdenv.mkDerivation rec {
 
@@ -13,8 +20,14 @@ stdenv.mkDerivation rec {
     sha256 = "1yl5h7mls50vkg7x5510mljmgsm02arqhcanwkrqw4ilwvcp1mgz";
   };
 
-  buildInputs = [ boost zlib openssl ];
-  makeFlags = [ "USE_AESNI=no" "USE_AVX=no" ];
+  buildInputs = with stdenv.lib; [ boost zlib openssl ]
+    ++ optional upnpSupport miniupnpc;
+  makeFlags =
+    let ynf = a: b: a + "=" + (if b then "yes" else "no"); in
+    [ (ynf "USE_AESNI" aesniSupport)
+      (ynf "USE_AVX"   avxSupport)
+      (ynf "USE_UPNP"  upnpSupport)
+    ];
 
   installPhase = ''
     install -D i2pd $out/bin/i2pd