bitcoin: enable WITH_USDT to match GUIX builds

The Bitcoin Core upstream GUIX release builds enable WITH_USDT.
To match these, enable this here too.

pkgs/applications/blockchains/bitcoin/default.nix

@@ -14,6 +14,7 @@
   db48,
   sqlite,
   qrencode,
+  libsystemtap,
   qtbase ? null,
   qttools ? null,
   python3,
@@ -60,6 +61,7 @@ stdenv.mkDerivation (finalAttrs: {
       zeromq
       zlib
     ]
+    ++ lib.optionals (stdenv.hostPlatform.isLinux) [ libsystemtap ]
     ++ lib.optionals withWallet [ sqlite ]
     # building with db48 (for legacy descriptor wallet support) is broken on Darwin
     ++ lib.optionals (withWallet && !stdenv.hostPlatform.isDarwin) [ db48 ]
@@ -96,6 +98,7 @@ stdenv.mkDerivation (finalAttrs: {
       (lib.cmakeBool "WITH_ZMQ" true)
       # building with db48 (for legacy wallet support) is broken on Darwin
       (lib.cmakeBool "WITH_BDB" (withWallet && !stdenv.hostPlatform.isDarwin))
+      (lib.cmakeBool "WITH_USDT" (stdenv.hostPlatform.isLinux))
     ]
     ++ lib.optionals (!finalAttrs.doCheck) [
       (lib.cmakeBool "BUILD_TESTS" false)