From 5fd06907655cdf11859bc3281333e3f4512b50fc Mon Sep 17 00:00:00 2001
From: Jan Nieuwenhuizen <janneke@gnu.org>
Date: Sun, 14 May 2017 11:35:05 +0200
Subject: [PATCH] gnu: Add Nyacc.

* gnu/packages/mes.scm (nyacc): New variable.
---
 gnu/packages/mes.scm | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/gnu/packages/mes.scm b/gnu/packages/mes.scm
index aaa00f78a..f14d58d5a 100644
--- a/gnu/packages/mes.scm
+++ b/gnu/packages/mes.scm
@@ -26,10 +26,32 @@
   #:use-module (gnu packages package-management)
   #:use-module (gnu packages perl)
   #:use-module (guix build-system gnu)
+  #:use-module (guix download)
   #:use-module (guix git-download)
   #:use-module (guix licenses)
   #:use-module (guix packages))
 
+(define-public nyacc
+  (package
+    (name "nyacc")
+    (version "0.78.3")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append
+                    "https://download.savannah.gnu.org/releases/nyacc/"
+                    name "-" version ".tar.gz"))
+              (sha256
+               (base32 "0xrnl2hl9rpl50n8cihvclcd951zj640fj5kpi3d6ihwcqjcdi0a"))))
+    (build-system gnu-build-system)
+    (native-inputs
+     `(("guile" ,guile-2.2)))
+    (synopsis "LALR(1) Parser Generator in Guile")
+    (description
+     "NYACC is a LALR(1) Parser Generator Implemented in Guile.
+The syntax and nomenclature should be considered not stable.")
+    (home-page "https://savannah.nongnu.org/projects/nyacc")
+    (license (list gpl3+ lgpl3+))))
+
 (define-public mes
   (let ((commit   "a437c173b9da1949ad966fd50dd4f26e522a910a")
         (revision "0")
-- 
2.12.2