libpinyin: replace db with kyotocabinet for reproducibility (#398909)

doc/release-notes/rl-2511.section.md

@@ -106,6 +106,8 @@
 
 - `rocmPackages.triton` has been removed in favor of `python3Packages.triton`.
 
+- `linpinyin`, which is used for Chinese character input, has migrated from the unmaintained BDB database format to the newer KyotoCabinet database format. If you want to migrate your user input statistics you can consider using [bdbtokyotodb](https://codeberg.org/raboof/bdbtokyotodb).
+
 - `go-mockery` has been updated to v3. For migration instructions see the [upstream documentation](https://vektra.github.io/mockery/latest/v3/). If v2 is still required `go-mockery_v2` has been added but will be removed on or before 2029-12-31 in-line with its [upstream support lifecycle](https://vektra.github.io/mockery/)
 
 - [private-gpt](https://github.com/zylon-ai/private-gpt) service has been removed by lack of maintenance upstream.

pkgs/by-name/li/libpinyin/package.nix

@@ -5,7 +5,7 @@
   fetchFromGitHub,
   autoreconfHook,
   glib,
-  db,
+  kyotocabinet,
   pkg-config,
   nix-update-script,
 }:
@@ -40,7 +40,11 @@ stdenv.mkDerivation (finalAttrs: {
 
   buildInputs = [
     glib
-    db
+    kyotocabinet
+  ];
+
+  configureFlags = [
+    "--with-dbm=KyotoCabinet"
   ];
 
   passthru.updateScript = nix-update-script { };