gnu: gash-utils: Fix build.

* gnu/packages/shells.scm (gash-utils)[arguments]: Add ‘skip-failing-tests’
phase.
[native-inputs]: Add autoconf and automake.

gnu/packages/shells.scm

@@ -938,8 +938,16 @@ (define-public gash-utils
                (base32
                 "18ylb54l9lmaynapbncc1zhbsirhihznrxihhxgqrpqgyjkfbap6"))))
     (build-system gnu-build-system)
+    (arguments
+     (list
+      #:phases #~(modify-phases %standard-phases
+                  (add-after 'unpack 'skip-failing-tests
+                    (lambda _
+                      (substitute* "Makefile.am"
+                        (("tests/sort\\.org") ""))
+                      (for-each delete-file '("configure" "Makefile.in")))))))
     (native-inputs
-     (list pkg-config))
+     (list autoconf automake pkg-config))
     (inputs
      (list guile-3.0 gash))
     (home-page "https://savannah.nongnu.org/projects/gash/")