From 024a629e271c3ebad062a27b0cadab29265fe224 Mon Sep 17 00:00:00 2001
From: Shea Levy <shea@shealevy.com>
Date: Fri, 30 Sep 2011 15:29:30 +0000
Subject: [PATCH] Set the M4 env var, for some reason configure can't find it
 even though it's in PATH

svn path=/nixpkgs/branches/stdenv-updates/; revision=29545
---
 pkgs/development/tools/parsing/bison/bison-2.5.nix | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/pkgs/development/tools/parsing/bison/bison-2.5.nix b/pkgs/development/tools/parsing/bison/bison-2.5.nix
index 87753d472f3a..98c465a185cf 100644
--- a/pkgs/development/tools/parsing/bison/bison-2.5.nix
+++ b/pkgs/development/tools/parsing/bison/bison-2.5.nix
@@ -12,6 +12,8 @@ stdenv.mkDerivation rec {
     ++ stdenv.lib.optional doCheck perl;
   propagatedBuildInputs = [ m4 ];
 
+  M4 = "m4";
+
   doCheck = true;
 
   meta = {