gnu: fossil: Update to 2.25.

* gnu/packages/version-control.scm (fossil): Update to 2.25.
[source]: switch to a simpler tarball URL.
[arguments]<configure-flags>: Add flag to enable JSON support.

Change-Id: I644dff44ce96d7f42e92cdbc994c4096ac55bf10
Signed-off-by: 宋文武 <iyzsong@member.fsf.org>

gnu/packages/version-control.scm

@@ -3467,20 +3467,15 @@ by rclone usable with git-annex.")
 (define-public fossil
   (package
     (name "fossil")
-    (version "2.23")
+    (version "2.25")
     (source
      (origin
        (method url-fetch)
        (uri (string-append
-             "https://www.fossil-scm.org/home/tarball/"
-             "47362306a7dd7c6fc3cab77cebe5d25469b0a9448479d9718eb5c49c8337b29"
-             "/fossil-src-" version ".tar.gz"))
-       ;; XXX: Currently the above hash must be manually updated.
+	     "https://fossil-scm.org/home/tarball/version-" version
+	     "/fossil-" version ".tar.gz"))
        (sha256
-        (base32 "1r1kabvmlhc0qgyq8g9zhq8i0123x9dba9b71j4xc71k14kfqjm9"))
-       (modules '((guix build utils)))
-       (snippet
-        '(delete-file-recursively "compat"))))
+        (base32 "18gws90by2q6a6rk7h3mx46pn79lz4zi3saxlyrdz5982mw9rvp4"))))
     (build-system gnu-build-system)
     (native-inputs
      (list tcl                          ;for configuration only
@@ -3491,6 +3486,7 @@ by rclone usable with git-annex.")
      (list openssl zlib sqlite-next))
     (arguments
      `(#:configure-flags (list "--with-openssl=auto"
+                               "--enable-json"
                                "--disable-internal-sqlite")
        #:test-target "test"
        #:phases (modify-phases %standard-phases