added flmsg: fldigi companion application

https://sourceforge.net/projects/fldigi/
Signed-off-by: Tim Dysinger <tim@dysinger.net>

pkgs/applications/misc/flmsg/default.nix

@@ -0,0 +1,34 @@
+{ stdenv
+, fetchurl
+, fltk13
+, libjpeg
+, pkgconfig
+}:
+
+stdenv.mkDerivation rec {
+  version = "4.0.7";
+  pname = "flmsg";
+  name = "${pname}-${version}";
+
+  src = fetchurl {
+    url = "mirror://sourceforge/fldigi/${name}.tar.gz";
+    sha256 = "1kdlwhxsw02pas9d0kakkq2713wj1m4q881f6am5aq4x8n01f4xw";
+  };
+
+  buildInputs = [
+    fltk13
+    libjpeg
+  ];
+
+  nativeBuildInputs = [
+    pkgconfig
+  ];
+
+  meta = {
+    description = "Digital modem message program";
+    homepage = https://sourceforge.net/projects/fldigi/;
+    license = stdenv.lib.licenses.gpl3Plus;
+    maintainers = with stdenv.lib.maintainers; [ dysinger ];
+    platforms = stdenv.lib.platforms.linux;
+  };
+}

pkgs/top-level/all-packages.nix

@@ -16431,6 +16431,8 @@ with pkgs;
   flink = callPackage ../applications/networking/cluster/flink { };
   flink_1_5 = flink.override { version = "1.5"; };
 
+  flmsg = callPackage ../applications/misc/flmsg { };
+
   fluidsynth = callPackage ../applications/audio/fluidsynth {
      inherit (darwin.apple_sdk.frameworks) AudioUnit CoreAudio CoreMIDI CoreServices;
   };