gnu: Add notmuch.

* gnu/packages/mail.scm (notmuch): New variable.

gnu/packages/mail.scm

@@ -44,6 +44,8 @@
   #:use-module (gnu packages pkg-config)
   #:use-module (gnu packages flex)
   #:use-module (gnu packages bdb)
+  #:use-module (gnu packages gdb)
+  #:use-module (gnu packages samba)
   #:use-module ((guix licenses)
                 #:select (gpl2 gpl2+ gpl3+ lgpl2.1+ lgpl3+))
   #:use-module (guix packages)
@@ -326,4 +328,42 @@ messages you need; in addition, it allows you to view messages, extract
 attachments, create new maildirs, and so on.")
     (license gpl3+)))
 
+(define-public notmuch
+  (package
+    (name "notmuch")
+    (version "0.18")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append "http://notmuchmail.org/releases/notmuch-"
+                                  version ".tar.gz"))
+              (sha256
+               (base32
+                "1ia65iazz2hlp3ja57yn0chs27rzsky9kayw74njwmgi9faw3vh9"))))
+    (build-system gnu-build-system)
+    (arguments
+     '(#:tests? #f ;; FIXME: Test suite hangs and times out.
+       #:phases (alist-replace
+                 'configure
+                 (lambda* (#:key outputs #:allow-other-keys)
+                   (setenv "CONFIG_SHELL" (which "sh"))
+                   (let ((out (assoc-ref outputs "out")))
+                     (zero? (system* "./configure"
+                                     (string-append "--prefix=" out)))))
+                 %standard-phases)))
+    (native-inputs
+     `(("pkg-config" ,pkg-config)))
+    (inputs
+     `(("emacs" ,emacs)
+       ("glib" ,glib)
+       ("gmime" ,gmime)
+       ("talloc" ,talloc)
+       ("xapian" ,xapian)
+       ("zlib" ,zlib)))
+    (home-page "http://notmuchmail.org/")
+    (synopsis "Thread-based email index, search, and tagging")
+    (description
+     "Notmuch is a command-line based program for indexing, searching, read-
+ing, and tagging large collections of email messages.")
+    (license gpl3+)))
+
 ;;; mail.scm ends here