[bug#54506] [PATCH v2] gnu: openfst: Update to 1.8.2, enable ngram extension

[Aurora via Guix-patches via <guix-patches@gnu.org>]

This extension is required by some programs that depend on openfst that aren't
yet packaged.

The extension itself also depends on C++14 to build due to make_unique.
---
 gnu/packages/machine-learning.scm | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/gnu/packages/machine-learning.scm b/gnu/packages/machine-learning.scm
index afac56f..b13e800 100644
--- a/gnu/packages/machine-learning.scm
+++ b/gnu/packages/machine-learning.scm
@@ -570,15 +570,16 @@ sample proximities between pairs of cases.")
 (define-public openfst
   (package
     (name "openfst")
-    (version "1.7.9")
+    (version "1.8.2")
     (source (origin
               (method url-fetch)
               (uri (string-append "http://www.openfst.org/twiki/pub/FST/"
                                   "FstDownload/openfst-" version ".tar.gz"))
               (sha256
                (base32
-                "1pmx1yhn2gknj0an0zwqmzgwjaycapi896244np50a8y3nrsw6ck"))))
+                "0hlbdmjjf1jgsvi3d2hwni5lz3l9a5bzj6ijpbawa8a7cbrpp66y"))))
     (build-system gnu-build-system)
+    (arguments '(#:configure-flags '("--enable-ngram-fsts" "CXXFLAGS=-std=c++14")))
     (home-page "http://www.openfst.org")
     (synopsis "Library for weighted finite-state transducers")
     (description "OpenFst is a library for constructing, combining,
-- 
2.30.2