libtransmission: init at 3.00 (#118998)

pkgs/applications/networking/p2p/transmission/default.nix

···
 , enableSystemd ? stdenv.isLinux
 , enableDaemon ? true
 , enableCli ? true
+, installLib ? false
 }:
 
 let
···
       "-DENABLE_QT=${mkFlag enableQt}"
       "-DENABLE_DAEMON=${mkFlag enableDaemon}"
       "-DENABLE_CLI=${mkFlag enableCli}"
+      "-DINSTALL_LIB=${mkFlag installLib}"
     ];
 
   nativeBuildInputs = [

pkgs/top-level/all-packages.nix

···
   transcode = callPackage ../applications/audio/transcode { };
 
   transmission = callPackage ../applications/networking/p2p/transmission { };
+  libtransmission = transmission.override {
+    installLib = true;
+    enableDaemon = false;
+    enableCli = false;
+  };
   transmission-gtk = transmission.override { enableGTK3 = true; };
   transmission-qt = transmission.override { enableQt = true; };