gnu: Add sqlite-3.15.1.

* gnu/packages/databases.scm (sqlite-3.15.1): New variable.

gnu/packages/databases.scm

@@ -558,6 +558,26 @@ widely deployed SQL database engine in the world.  The source code for SQLite
 is in the public domain.")
    (license public-domain)))
 
+(define-public sqlite-3.15.1
+  (package (inherit sqlite)
+           (version "3.15.1")
+           (source (origin
+                     (method url-fetch)
+                     (uri (let ((numeric-version
+                                 (match (string-split version #\.)
+                                   ((first-digit other-digits ...)
+                                    (string-append first-digit
+                                                   (string-pad-right
+                                                    (string-concatenate
+                                                     (map (cut string-pad <> 2 #\0)
+                                                          other-digits))
+                                                    6 #\0))))))
+                            (string-append "https://sqlite.org/2016/sqlite-autoconf-"
+                                           numeric-version ".tar.gz")))
+                     (sha256
+                      (base32
+                       "1ig2d9jzzixiifmgqsl6kjcvy17jwxby3s24gfnc5qvyd6vqkyjx"))))))
+
 (define-public tdb
   (package
     (name "tdb")