From a93f8835560ae7f601156b42deca870cdfbda443 Mon Sep 17 00:00:00 2001
From: Danny Wilson <danny@decube.net>
Date: Thu, 3 Apr 2014 19:11:07 +0200
Subject: [PATCH] Fix bison build on Illumos.

---
 pkgs/development/tools/parsing/bison/3.x.nix | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/pkgs/development/tools/parsing/bison/3.x.nix b/pkgs/development/tools/parsing/bison/3.x.nix
index b38751ba99e..8e7d65b81ff 100644
--- a/pkgs/development/tools/parsing/bison/3.x.nix
+++ b/pkgs/development/tools/parsing/bison/3.x.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchurl, m4, perl }:
+{ stdenv, fetchurl, m4, perl, help2man }:
 
 stdenv.mkDerivation rec {
   name = "bison-3.0.4";
@@ -8,7 +8,7 @@ stdenv.mkDerivation rec {
     sha256 = "b67fd2daae7a64b5ba862c66c07c1addb9e6b1b05c5f2049392cfd8a2172952e";
   };
 
-  nativeBuildInputs = [ m4 perl ];
+  nativeBuildInputs = [ m4 perl help2man ];
   propagatedBuildInputs = [ m4 ];
 
   meta = {