From 9055a9b80382a9ee7c915f757c2f617198b50c6e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ludovic=20Court=C3=A8s?= <ludo@gnu.org>
Date: Sat, 18 Jun 2011 16:36:17 +0000
Subject: [PATCH] GNU MIG: Add the `noyywrap' option for Flex.

svn path=/nixpkgs/trunk/; revision=27494
---
 pkgs/os-specific/gnu/mig/default.nix    |  4 ++--
 pkgs/os-specific/gnu/mig/noyywrap.patch | 12 ++++++++++++
 2 files changed, 14 insertions(+), 2 deletions(-)
 create mode 100644 pkgs/os-specific/gnu/mig/noyywrap.patch

diff --git a/pkgs/os-specific/gnu/mig/default.nix b/pkgs/os-specific/gnu/mig/default.nix
index 668229b101f..480b349297a 100644
--- a/pkgs/os-specific/gnu/mig/default.nix
+++ b/pkgs/os-specific/gnu/mig/default.nix
@@ -13,12 +13,12 @@ stdenv.mkDerivation {
     inherit rev;
   };
 
+  patches = [ ./noyywrap.patch ];
+
   buildInputs = [ autoconf automake flex bison machHeaders ];
 
   preConfigure = "autoreconf -vfi";
 
-  configureFlags = [ "--build=i586-pc-gnu" ];
-
   doCheck = true;
 
   meta = {
diff --git a/pkgs/os-specific/gnu/mig/noyywrap.patch b/pkgs/os-specific/gnu/mig/noyywrap.patch
new file mode 100644
index 00000000000..40ca6171f64
--- /dev/null
+++ b/pkgs/os-specific/gnu/mig/noyywrap.patch
@@ -0,0 +1,12 @@
+Fix undefined reference to `yywrap'.
+
+diff --git a/lexxer.l b/lexxer.l
+index 9725d0b..15264bc 100644
+--- a/lexxer.l
++++ b/lexxer.l
+@@ -1,4 +1,5 @@
+ %option nounput
++%option noyywrap
+ 
+ %k 10000
+ %n 5000