[PATCH] gnu: emacs-flycheck: Use the upstream release instead of MELPA.

[Alex Kost <alezost@gmail.com>]

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Hello, ‘emacs-flycheck’ package is "broken": as you remember¹ MELPA
updates tarballs in place (“guix build --source emacs-flycheck” gives me
a different hash), so it's better to use an upstream release.

As can be seen² there is a ready-to-use tarball but only for the
previous version (0.23).  There is also a snapshot of the source
code for the latest version (0.24), but it is raw:

- 'emacs-build-system' can't be used because the info manuals will not
  be generated.

- 'gnu-build-system' can't be used because the provided Makefile was
  created for preparing a package for Cask (not for a real installing
  the package into a system).

So I took the previous release for this patch because it doesn't require
any additional tweaking.

[1] http://lists.gnu.org/archive/html/guix-devel/2015-07/msg00416.html
[2] https://github.com/flycheck/flycheck/releases


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From 7df85c9187385607f0156d82f078e1ea2c9c6162 Mon Sep 17 00:00:00 2001
From: Alex Kost <alezost@gmail.com>
Date: Tue, 1 Sep 2015 21:18:44 +0300
Subject: [PATCH] gnu: emacs-flycheck: Use the upstream release instead of
 MELPA.

* gnu/packages/emacs.scm (flycheck): Change version to 0.23.
  Replace MELPA tarball with the upstream release.
---
 gnu/packages/emacs.scm | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/gnu/packages/emacs.scm b/gnu/packages/emacs.scm
index 57d45c2..594e842 100644
--- a/gnu/packages/emacs.scm
+++ b/gnu/packages/emacs.scm
@@ -537,14 +537,15 @@ the body are let-bound and this search is done at compile time.")
 (define-public flycheck
   (package
     (name "emacs-flycheck")
-    (version "20150831.1343")
+    (version "0.23")
     (source (origin
               (method url-fetch)
-              (uri (string-append "http://melpa.org/packages/flycheck-"
-                                  version ".tar"))
+              (uri (string-append
+                    "https://github.com/flycheck/flycheck/releases/download/"
+                    version "/flycheck-" version ".tar"))
               (sha256
                (base32
-                "0a0iyvki62rqi24dbrcdq3i1wdygdi350gcjsfrfr6fz8fasz42l"))))
+                "1n2cifzsl5dbv42l82bi3y1vk6q33msi8dd4bj7b9nvnl9jfjj5b"))))
     (build-system emacs-build-system)
     (propagated-inputs
      `(("emacs-dash" ,emacs-dash)
-- 
2.4.3