From 625fa4dfe8b74642e411298ace91fdec57cef18f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Josef=20Kemetm=C3=BCller?= <josef.kemetmueller@gmail.com>
Date: Fri, 20 Apr 2018 01:20:05 +0200
Subject: [PATCH] gv: enable darwin build

---
 pkgs/applications/misc/gv/default.nix | 17 ++++++++++++++---
 1 file changed, 14 insertions(+), 3 deletions(-)

diff --git a/pkgs/applications/misc/gv/default.nix b/pkgs/applications/misc/gv/default.nix
index 3fad634b18b7..b13e7ae5232c 100644
--- a/pkgs/applications/misc/gv/default.nix
+++ b/pkgs/applications/misc/gv/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchurl, Xaw3d, ghostscriptX, perl }:
+{ stdenv, fetchurl, Xaw3d, ghostscriptX, perl, pkgconfig, libiconv }:
 
 let
   name = "gv-3.7.4";
@@ -11,7 +11,18 @@ stdenv.mkDerivation {
     sha256 = "0q8s43z14vxm41pfa8s5h9kyyzk1fkwjhkiwbf2x70alm6rv6qi1";
   };
 
-  buildInputs = [ Xaw3d ghostscriptX perl ];
+  configureFlags = stdenv.lib.optionals stdenv.isDarwin [
+    "--enable-SIGCHLD-fallback"
+  ];
+
+  buildInputs = [
+    Xaw3d
+    ghostscriptX
+    perl
+  ] ++ stdenv.lib.optionals stdenv.isDarwin [
+    pkgconfig
+    libiconv
+  ];
 
   patchPhase = ''
     sed 's|\<gs\>|${ghostscriptX}/bin/gs|g' -i "src/"*.in
@@ -32,6 +43,6 @@ stdenv.mkDerivation {
 
     license = stdenv.lib.licenses.gpl3Plus;
     maintainers = [ ];
-    platforms = stdenv.lib.platforms.gnu;  # arbitrary choice
+    platforms = stdenv.lib.platforms.unix;
   };
 }