[PATCH] gnu: Add mcelog.

[Tobias Geerinckx-Rice <me@tobias.gr>]

* gnu/packages/linux.scm (mcelog): New variable.
---
 gnu/packages/linux.scm | 41 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 41 insertions(+)

diff --git a/gnu/packages/linux.scm b/gnu/packages/linux.scm
index 3ec6514..fc4faa4 100644
--- a/gnu/packages/linux.scm
+++ b/gnu/packages/linux.scm
@@ -74,6 +74,7 @@
   #:use-module (guix build-system python)
   #:use-module (guix build-system trivial)
   #:use-module (guix download)
+  #:use-module (guix git-download)
   #:use-module ((guix licenses) #:prefix license:)
   #:use-module (guix packages)
   #:use-module (guix utils)
@@ -2939,3 +2940,43 @@ the default @code{nsswitch} and the experimental @code{umich_ldap}.")
      "Tools for loading and managing Linux kernel modules, such as `modprobe',
 `insmod', `lsmod', and more.")
     (license license:gpl2+)))
+
+(define-public mcelog
+  (package
+    (name "mcelog")
+    (version "141")
+    (source
+     (let ((commit (string-append "v" version)))
+       (origin
+         (method git-fetch)
+         (uri (git-reference
+               (url "https://git.kernel.org/pub/scm/utils/cpu/mce/mcelog.git")
+               (commit commit)))
+         (sha256
+          (base32
+           "0iqvqiwf3aawmgjcyg2rj427m8nvfbfnmmfv0606nhr59l14h5jr"))
+         (file-name (string-append name "-" version))
+         (modules '((guix build utils)))
+         (snippet
+          ;; Hard-code version to avoid a git (and .git/) build dependency.
+          `(substitute* "Makefile"
+             (("\"unknown\"") (string-append "\"" ,commit "\"")))))))
+    (build-system gnu-build-system)
+    (arguments
+     `(#:phases (modify-phases %standard-phases
+                  (delete 'configure))  ; no configure script
+                #:make-flags (list "CC=gcc"
+                                   (string-append "DESTDIR="
+                                                  (assoc-ref %outputs "out"))
+                                   "prefix="
+                                   "DOCDIR=/share/doc/mcelog"
+                                   "etcprefix=$(DOCDIR)/examples")
+                #:tests? #f))           ; tests must be run as root
+    (home-page "http://mcelog.org/")
+    (synopsis "Machine check monitor for x86 Linux systems")
+    (description
+     "The mcelog daemon is required by the Linux kernel to log memory, I/O,
+      CPU, and other hardware errors on x86 systems.  It can also perform
+      user-defined tasks, such as bringing bad pages off-line, when
+      configurable error thresholds are exceeded.")
+    (license license:gpl2)))
-- 
2.7.4