From 8cee3bb69d034d1cbe3edfc20f11da169b3a0ed8 Mon Sep 17 00:00:00 2001
From: Elias Rohrer <dev@tnull.de>
Date: Wed, 22 Jan 2025 15:03:55 +0100
Subject: [PATCH] Add `check-cfg` lint to `fuzz` to quiet warnings

Previously, the fuzzer would complain about unknown `cfg` flags. Here,
we add them to the list of allowed flags to quiet the many warnings.
---
 fuzz/Cargo.toml | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/fuzz/Cargo.toml b/fuzz/Cargo.toml
index a0f748d2349..37c0cb20244 100644
--- a/fuzz/Cargo.toml
+++ b/fuzz/Cargo.toml
@@ -49,3 +49,13 @@ opt-level = 1
 name = "lightning_fuzz"
 path = "src/lib.rs"
 crate-type = ["rlib", "dylib", "staticlib"]
+
+[lints.rust.unexpected_cfgs]
+level = "forbid"
+# When adding a new cfg attribute, ensure that it is added to this list.
+check-cfg = [
+    "cfg(fuzzing)",
+    "cfg(secp256k1_fuzz)",
+    "cfg(hashes_fuzz)",
+    "cfg(taproot)",
+]