From 4dd5496bd427f29cffc295ad00ba47476cba303c Mon Sep 17 00:00:00 2001
From: Austin Seipp <aseipp@pobox.com>
Date: Sat, 7 Jun 2014 07:11:50 -0500
Subject: [PATCH] arcanist: build xhpast for 'arc liberate'

Signed-off-by: Austin Seipp <aseipp@pobox.com>
---
 pkgs/development/tools/misc/arcanist/default.nix | 14 ++++++++++----
 1 file changed, 10 insertions(+), 4 deletions(-)

diff --git a/pkgs/development/tools/misc/arcanist/default.nix b/pkgs/development/tools/misc/arcanist/default.nix
index 9cc8e7c7f6bd..02fe572edabd 100644
--- a/pkgs/development/tools/misc/arcanist/default.nix
+++ b/pkgs/development/tools/misc/arcanist/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchgit, php, makeWrapper }:
+{ stdenv, fetchgit, php, flex, makeWrapper }:
 
 let
   libphutil = fetchgit {
@@ -17,17 +17,23 @@ stdenv.mkDerivation rec {
   version = "20140606";
 
   src = [ arcanist libphutil ];
-  buildInputs = [ php makeWrapper ];
+  buildInputs = [ php makeWrapper flex ];
 
   unpackPhase = "true";
-  buildPhase = "true";
+  buildPhase = ''
+    ORIG=`pwd`
+    chmod +w -R ${libphutil}
+    cd ${libphutil}/support/xhpast
+    ls
+    make clean all install
+    cd $ORIG
+  '';
   installPhase = ''
     mkdir -p $out/bin $out/libexec
     cp -R ${libphutil} $out/libexec/libphutil
     cp -R ${arcanist}  $out/libexec/arcanist
 
     ln -s $out/libexec/arcanist/bin/arc $out/bin
-
     wrapProgram $out/bin/arc \
       --prefix PATH : "${php}/bin"
   '';