From ba4461f96f14b322ebd03d9cbcf4e0fdc206d595 Mon Sep 17 00:00:00 2001
From: Michael Raskin <7c6f434c@mail.ru>
Date: Sun, 2 Feb 2014 19:18:09 +0400
Subject: [PATCH] Fix wvdial build by inserting missing unistd.h includes

---
 pkgs/development/libraries/wvstreams/default.nix | 2 ++
 pkgs/os-specific/linux/wvdial/default.nix        | 2 ++
 2 files changed, 4 insertions(+)

diff --git a/pkgs/development/libraries/wvstreams/default.nix b/pkgs/development/libraries/wvstreams/default.nix
index 0b551b753f57..ecfc9b88a0e4 100644
--- a/pkgs/development/libraries/wvstreams/default.nix
+++ b/pkgs/development/libraries/wvstreams/default.nix
@@ -12,6 +12,8 @@ stdenv.mkDerivation {
 
   preConfigure = ''
     find -type f | xargs sed -i 's@/bin/bash@bash@g'
+
+    sed -e '1i#include <unistd.h>' -i $(find . -name '*.c' -o -name '*.cc')
   '';
 
   buildInputs = [ qt4 dbus zlib openssl readline perl ];
diff --git a/pkgs/os-specific/linux/wvdial/default.nix b/pkgs/os-specific/linux/wvdial/default.nix
index eb9d09d2a119..7decd42b376b 100644
--- a/pkgs/os-specific/linux/wvdial/default.nix
+++ b/pkgs/os-specific/linux/wvdial/default.nix
@@ -15,6 +15,8 @@ stdenv.mkDerivation rec {
     export makeFlags="prefix=$out"
     # not sure about this line
     sed -i 's@/etc/ppp/peers@$out/etc/ppp/peers@' Makefile.in
+
+    sed -e '1i#include <unistd.h>' -i $(find . -name '*.cc')
   '';
 
   meta = {