From e6e1f55fe99852f510b979a16fc1bec0648a42d0 Mon Sep 17 00:00:00 2001
From: Matthias Schiffer <mschiffer@universe-factory.net>
Date: Fri, 3 Mar 2023 20:00:03 +0100
Subject: [PATCH] Use zlib-ng backend for flate2 by default

Still allow disabling the feature to avoid the cmake dependency.
---
 Cargo.lock | 20 ++++++++++++++++++++
 Cargo.toml |  4 ++++
 TODO.md    |  1 -
 3 files changed, 24 insertions(+), 1 deletion(-)

diff --git a/Cargo.lock b/Cargo.lock
index 5adcd72..1137014 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -105,6 +105,15 @@ dependencies = [
  "os_str_bytes",
 ]
 
+[[package]]
+name = "cmake"
+version = "0.1.49"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "db34956e100b30725f2eb215f90d4871051239535632f84fea3bc92722c66b7c"
+dependencies = [
+ "cc",
+]
+
 [[package]]
 name = "crc32fast"
 version = "1.3.2"
@@ -180,6 +189,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a8a2db397cb1c8772f31494cb8917e48cd1e64f0fa7efac59fbd741a0a8ce841"
 dependencies = [
  "crc32fast",
+ "libz-ng-sys",
  "miniz_oxide",
 ]
 
@@ -241,6 +251,16 @@ version = "0.2.139"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "201de327520df007757c1f0adce6e827fe8562fbc28bfd9c15571c66ca1f5f79"
 
+[[package]]
+name = "libz-ng-sys"
+version = "1.1.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4399ae96a9966bf581e726de86969f803a81b7ce795fcd5480e640589457e0f2"
+dependencies = [
+ "cmake",
+ "libc",
+]
+
 [[package]]
 name = "linux-raw-sys"
 version = "0.1.4"
diff --git a/Cargo.toml b/Cargo.toml
index 6f40d32..e719a80 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -19,3 +19,7 @@ itertools = "0.10.5"
 num-integer = "0.1.45"
 serde = "1.0.152"
 zstd = "0.12.3"
+
+[features]
+default = ["zlib-ng"]
+zlib-ng = ["flate2/zlib-ng"]
diff --git a/TODO.md b/TODO.md
index e6c14f6..cb18d08 100644
--- a/TODO.md
+++ b/TODO.md
@@ -5,4 +5,3 @@
 - To check:
   - fastnbt borrow
   - fastnbt from_reader
-  - flate2 backends