- Include review comments: don't depend on fish.

- Add 4258-fish-subshell-prompt.patch fixing
  https://midnight-commander.org/ticket/4258 stopping fish from sending
  \r while printing prompt and mc erases prompt buffer.
- Add mc.fish, which the fish equivalent of /usr/share/mc/mc-wrapper.sh

OBS-URL: https://build.opensuse.org/package/show/Base:System/mc?expand=0&rev=142

mc.fish

@@ -0,0 +1,25 @@
+function mc --description='Midnight Commander'
+    set -q TMPDIR || set -gx TMPDIR /tmp
+    set -gx _fish_MC_PWD_FILE $TMPDIR/mc-(id -un)/mc.pwd.$fish_pid
+    command mc -P "$_fish_MC_PWD_FILE" $argv
+
+    if test -r $_fish_MC_PWD_FILE
+        set -gx _fish_MC_PWD (cat $_fish_MC_PWD_FILE)
+        if test -n $_fish_MC_PWD && test $_fish_MC_PWD != $PWD && test -d $_fish_MC_PWD
+            cd $_fish_MC_PWD
+        end
+        set -e _fish_MC_PWD
+    end
+
+    set -e _fish_MC_PWD_FILE
+    set -e _fish_MC_USER
+
+    function _remove_tmp --on-job-exit caller --inherit-variable _fish_MC_PWD_FILE
+        command rm $_fish_MC_PWD_FILE
+        set -f dirn (dirname $_fish_MC_PWD_FILE)
+        if test -d "$dirn"
+            rm -f $dirn
+        end
+        functions -e _remove_tmp
+    end
+end