leafnode: drop

Drop leafnode package as part of #356387,migrating from the end-of-life
PCRE to PCRE2.
`leafnode` uses an 2014 alpha version of leafnode 2, which does not appear
to have been developed further since then.
Leafnode 1 still receives updates and available through the `leafnode1`
package providing a possible alternative.

doc/release-notes/rl-2611.section.md

@@ -99,6 +99,8 @@
 
 - `buildFHSEnvChroot` has been removed after deprecation in 23.05.
 
+- `leafnode` has been removed, as it was an unmaintained alpha-release of leafnode 2 and has a dependency on the EOL PRCE-library. Consider using `leafnode1` instead, which is still maintained.
+
 - `gh-actions-cache` has been removed since its functionality has been integrated directly into `gh` (`gh cache`). See [upstream readme](https://github.com/actions/gh-actions-cache).
 
 - `requireFile` now sets `meta.license = lib.licenses.unfree` by default. Users of `requireFile`-based derivations that preserve this default will need to explicitly allow their evaluation as described in [](#sec-allow-unfree).

pkgs/by-name/le/leafnode/package.nix

@@ -1,48 +0,0 @@
-{
-  lib,
-  stdenv,
-  fetchurl,
-  pcre,
-  libxcrypt,
-}:
-
-stdenv.mkDerivation (finalAttrs: {
-  pname = "leafnode";
-  version = "2.0.0.alpha20140727b";
-
-  src = fetchurl {
-    url = "http://krusty.dt.e-technik.tu-dortmund.de/~ma/leafnode/beta/leafnode-${finalAttrs.version}.tar.bz2";
-    sha256 = "sha256-NOuiy7uHG3JMjV3UAtHDWK6yG6QmvrVljhVe0NdGEHU=";
-  };
-
-  configureFlags = [ "--enable-runas-user=nobody" ];
-
-  prePatch = ''
-    substituteInPlace Makefile.in --replace 02770 0770
-  '';
-
-  # configure uses id to check environment; we don't want this check
-  preConfigure = ''
-    sed -re 's/^ID[=].*/ID="echo whatever"/' -i configure
-  '';
-
-  # The is_validfqdn is far too restrictive, and only allows
-  # Internet-facing servers to run.  In order to run leafnode via
-  # localhost only, we need to disable this check.
-  postConfigure = ''
-    sed -i validatefqdn.c -e 's/int is_validfqdn(const char \*f) {/int is_validfqdn(const char *f) { return 1;/;'
-  '';
-
-  buildInputs = [
-    pcre
-    libxcrypt
-  ];
-
-  meta = {
-    homepage = "https://leafnode.sourceforge.io/index.shtml";
-    description = "Implementation of a store & forward NNTP proxy, under development";
-    license = lib.licenses.mit;
-    platforms = lib.platforms.unix;
-    maintainers = [ ];
-  };
-})

pkgs/top-level/aliases.nix

@@ -1196,6 +1196,7 @@ mapAliases {
   layan-kde = throw "'layan-kde' has been removed, as it is only compatible with Plasma 5, which is EOL"; # Added 2025-08-20
   lazarus-qt = throw "'lazarus-qt' has been renamed to/replaced by 'lazarus-qt5'"; # Converted to throw 2025-10-27
   leaf = throw "'leaf' has been removed as it is unmaintained. Consider using 'fastfetch' instead"; # Added 2026-04-24
+  leafnode = throw "'leafnode' has been removed as it is unmaintained and depends on EOL library PCRE. Consider using leafnode1 instead"; # Added 2026-07-30
   ledger-agent = throw "ledger-agent has been removed because upstream dropped Ledger support"; # Added 2026-03-11
   ledger_agent = throw "ledger-agent has been removed because upstream dropped Ledger support"; # Added 2026-03-11
   lepton = throw "'lepton' has been removed as it is archived upstream and has known vulnerabilities (CVE-2022-4104). Consider using 'lepton-jpeg-util' instead"; # Added 2026-06-29