From a047ba25f4ab932980460db588f7ef14602bc4a2 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Vladim=C3=ADr=20=C4=8Cun=C3=A1t?= <vcunat@gmail.com>
Date: Tue, 9 Feb 2016 15:23:16 +0100
Subject: [PATCH] libiconv: fix on mingw

---
 pkgs/development/libraries/libiconv/default.nix | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/pkgs/development/libraries/libiconv/default.nix b/pkgs/development/libraries/libiconv/default.nix
index f5818c3bf4c..9b62436ae08 100644
--- a/pkgs/development/libraries/libiconv/default.nix
+++ b/pkgs/development/libraries/libiconv/default.nix
@@ -1,6 +1,6 @@
 { fetchurl, stdenv, lib }:
 
-assert (!stdenv.isLinux);
+assert !stdenv.isLinux || stdenv ? cross; # TODO: improve on cross
 
 stdenv.mkDerivation rec {
   name = "libiconv-1.14";
@@ -15,6 +15,12 @@ stdenv.mkDerivation rec {
     ./libiconv-1.14-wchar.patch
   ];
 
+  postPatch =
+    lib.optionalString (stdenv.cross.libc or null == "msvcrt")
+      ''
+        sed '/^_GL_WARN_ON_USE (gets/d' -i srclib/stdio.in.h
+      '';
+
   configureFlags =
   # On Cygwin, Libtool produces a `.dll.a', which is not a "real" DLL
   # (Windows' linker would need to be used somehow to produce an actual