From 7bd68b1df6456c11973ff3ec736e9c70721c5603 Mon Sep 17 00:00:00 2001
From: Jan Tojnar <jtojnar@gmail.com>
Date: Sun, 15 May 2022 08:35:59 +0200
Subject: [PATCH] =?UTF-8?q?link-grammar:=205.10.2=20=E2=86=92=205.10.4?=
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https://github.com/opencog/link-grammar/compare/link-grammar-5.10.2...link-grammar-5.10.3
https://github.com/opencog/link-grammar/compare/link-grammar-5.10.3...link-grammar-5.10.4
---
 pkgs/tools/text/link-grammar/default.nix | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/pkgs/tools/text/link-grammar/default.nix b/pkgs/tools/text/link-grammar/default.nix
index c685ef603319..3e348f159c17 100644
--- a/pkgs/tools/text/link-grammar/default.nix
+++ b/pkgs/tools/text/link-grammar/default.nix
@@ -3,6 +3,7 @@
 , fetchurl
 , pkg-config
 , python3
+, flex
 , sqlite
 , libedit
 , runCommand
@@ -13,18 +14,19 @@ let
 
 link-grammar = stdenv.mkDerivation rec {
   pname = "link-grammar";
-  version = "5.10.2";
+  version = "5.10.4";
 
   outputs = [ "bin" "out" "dev" "man" ];
 
   src = fetchurl {
     url = "http://www.abisource.com/downloads/${pname}/${version}/${pname}-${version}.tar.gz";
-    sha256 = "sha256-KM7HUuqg44l66WEzO2knRZ+Laf7+aMKqUnKYPX24abY=";
+    sha256 = "sha256-Pd4tEsre7aGTlEoereSElisCGXXhwgZDTMt4UEZIf4E=";
   };
 
   nativeBuildInputs = [
     pkg-config
     python3
+    flex
   ];
 
   buildInputs = [