From 02b79010234cc6ed670ab6c0353f2b08283bdec6 Mon Sep 17 00:00:00 2001
From: Thomas Strobel <ts468@cam.ac.uk>
Date: Tue, 10 Feb 2015 10:40:36 +0100
Subject: [PATCH] New flag for compiling libyaml-cpp as PIC.

---
 pkgs/development/libraries/libyaml-cpp/default.nix | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/pkgs/development/libraries/libyaml-cpp/default.nix b/pkgs/development/libraries/libyaml-cpp/default.nix
index 1ba31a7a6d52..f56bf77abfea 100644
--- a/pkgs/development/libraries/libyaml-cpp/default.nix
+++ b/pkgs/development/libraries/libyaml-cpp/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchurl, cmake, boost }:
+{ stdenv, fetchurl, cmake, boost, makePIC ? false }:
 
 stdenv.mkDerivation {
   name = "libyaml-cpp-0.5.1";
@@ -10,6 +10,8 @@ stdenv.mkDerivation {
 
   buildInputs = [ cmake boost ];
 
+  cmakeFlags = stdenv.lib.optionals makePIC [ "-DCMAKE_C_FLAGS=-fPIC" "-DCMAKE_CXX_FLAGS=-fPIC" ];
+
   meta = with stdenv.lib; {
     homepage = http://code.google.com/p/yaml-cpp/;
     description = "A YAML parser and emitter for C++";