From d1a9f2e8be9624e06d42714a107d2b8288945d12 Mon Sep 17 00:00:00 2001
From: Ignat Loskutov <ignat.loskutov@gmail.com>
Date: Thu, 16 Feb 2017 01:13:23 +0300
Subject: [PATCH] gpgme: fix build on macOS

---
 pkgs/development/libraries/gpgme/default.nix | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/pkgs/development/libraries/gpgme/default.nix b/pkgs/development/libraries/gpgme/default.nix
index 307fde4e5c27..2ab0977004c4 100644
--- a/pkgs/development/libraries/gpgme/default.nix
+++ b/pkgs/development/libraries/gpgme/default.nix
@@ -30,6 +30,9 @@ stdenv.mkDerivation rec {
   NIX_CFLAGS_COMPILE =
     with stdenv; lib.optional (system == "i686-linux") "-D_FILE_OFFSET_BITS=64";
 
+  AM_CXXFLAGS =
+    with stdenv; lib.optional (isDarwin) "-D_POSIX_C_SOURCE=200809L";
+
   meta = with stdenv.lib; {
     homepage = "http://www.gnupg.org/related_software/gpgme";
     description = "Library for making GnuPG easier to use";