From: Matt Corallo <git@bluematt.me>
Date: Fri, 18 Feb 2022 15:54:56 +0000 (+0000)
Subject: Add explicit compile errors when cfg=fuzzing is mis-set
X-Git-Tag: v0.0.105~10^2
X-Git-Url: http://git.bitcoin.ninja/index.cgi?a=commitdiff_plain;h=b0cb5583b1d2ce9e0a2aee191896df627f39242f;p=rust-lightning

Add explicit compile errors when cfg=fuzzing is mis-set
---

diff --git a/fuzz/src/bin/chanmon_consistency_target.rs b/fuzz/src/bin/chanmon_consistency_target.rs
index c480b3d17..25fe23b58 100644
--- a/fuzz/src/bin/chanmon_consistency_target.rs
+++ b/fuzz/src/bin/chanmon_consistency_target.rs
@@ -12,6 +12,9 @@
 
 #![cfg_attr(feature = "libfuzzer_fuzz", no_main)]
 
+#[cfg(not(fuzzing))]
+compile_error!("Fuzz targets need cfg=fuzzing");
+
 extern crate lightning_fuzz;
 use lightning_fuzz::chanmon_consistency::*;
 
diff --git a/fuzz/src/bin/chanmon_deser_target.rs b/fuzz/src/bin/chanmon_deser_target.rs
index 8b57874cf..9e9b17626 100644
--- a/fuzz/src/bin/chanmon_deser_target.rs
+++ b/fuzz/src/bin/chanmon_deser_target.rs
@@ -12,6 +12,9 @@
 
 #![cfg_attr(feature = "libfuzzer_fuzz", no_main)]
 
+#[cfg(not(fuzzing))]
+compile_error!("Fuzz targets need cfg=fuzzing");
+
 extern crate lightning_fuzz;
 use lightning_fuzz::chanmon_deser::*;
 
diff --git a/fuzz/src/bin/full_stack_target.rs b/fuzz/src/bin/full_stack_target.rs
index 7dae65531..bebb7fdcd 100644
--- a/fuzz/src/bin/full_stack_target.rs
+++ b/fuzz/src/bin/full_stack_target.rs
@@ -12,6 +12,9 @@
 
 #![cfg_attr(feature = "libfuzzer_fuzz", no_main)]
 
+#[cfg(not(fuzzing))]
+compile_error!("Fuzz targets need cfg=fuzzing");
+
 extern crate lightning_fuzz;
 use lightning_fuzz::full_stack::*;
 
diff --git a/fuzz/src/bin/msg_accept_channel_target.rs b/fuzz/src/bin/msg_accept_channel_target.rs
index d28895a0f..0018d09ab 100644
--- a/fuzz/src/bin/msg_accept_channel_target.rs
+++ b/fuzz/src/bin/msg_accept_channel_target.rs
@@ -12,6 +12,9 @@
 
 #![cfg_attr(feature = "libfuzzer_fuzz", no_main)]
 
+#[cfg(not(fuzzing))]
+compile_error!("Fuzz targets need cfg=fuzzing");
+
 extern crate lightning_fuzz;
 use lightning_fuzz::msg_targets::msg_accept_channel::*;
 
diff --git a/fuzz/src/bin/msg_announcement_signatures_target.rs b/fuzz/src/bin/msg_announcement_signatures_target.rs
index dcfc006eb..593908f41 100644
--- a/fuzz/src/bin/msg_announcement_signatures_target.rs
+++ b/fuzz/src/bin/msg_announcement_signatures_target.rs
@@ -12,6 +12,9 @@
 
 #![cfg_attr(feature = "libfuzzer_fuzz", no_main)]
 
+#[cfg(not(fuzzing))]
+compile_error!("Fuzz targets need cfg=fuzzing");
+
 extern crate lightning_fuzz;
 use lightning_fuzz::msg_targets::msg_announcement_signatures::*;
 
diff --git a/fuzz/src/bin/msg_channel_announcement_target.rs b/fuzz/src/bin/msg_channel_announcement_target.rs
index 0efc0b41f..f99463142 100644
--- a/fuzz/src/bin/msg_channel_announcement_target.rs
+++ b/fuzz/src/bin/msg_channel_announcement_target.rs
@@ -12,6 +12,9 @@
 
 #![cfg_attr(feature = "libfuzzer_fuzz", no_main)]
 
+#[cfg(not(fuzzing))]
+compile_error!("Fuzz targets need cfg=fuzzing");
+
 extern crate lightning_fuzz;
 use lightning_fuzz::msg_targets::msg_channel_announcement::*;
 
diff --git a/fuzz/src/bin/msg_channel_reestablish_target.rs b/fuzz/src/bin/msg_channel_reestablish_target.rs
index 0111d2b27..ba1a76d99 100644
--- a/fuzz/src/bin/msg_channel_reestablish_target.rs
+++ b/fuzz/src/bin/msg_channel_reestablish_target.rs
@@ -12,6 +12,9 @@
 
 #![cfg_attr(feature = "libfuzzer_fuzz", no_main)]
 
+#[cfg(not(fuzzing))]
+compile_error!("Fuzz targets need cfg=fuzzing");
+
 extern crate lightning_fuzz;
 use lightning_fuzz::msg_targets::msg_channel_reestablish::*;
 
diff --git a/fuzz/src/bin/msg_channel_update_target.rs b/fuzz/src/bin/msg_channel_update_target.rs
index 4bfb9860c..0198ddc00 100644
--- a/fuzz/src/bin/msg_channel_update_target.rs
+++ b/fuzz/src/bin/msg_channel_update_target.rs
@@ -12,6 +12,9 @@
 
 #![cfg_attr(feature = "libfuzzer_fuzz", no_main)]
 
+#[cfg(not(fuzzing))]
+compile_error!("Fuzz targets need cfg=fuzzing");
+
 extern crate lightning_fuzz;
 use lightning_fuzz::msg_targets::msg_channel_update::*;
 
diff --git a/fuzz/src/bin/msg_closing_signed_target.rs b/fuzz/src/bin/msg_closing_signed_target.rs
index 12dbb31cd..abd69fc95 100644
--- a/fuzz/src/bin/msg_closing_signed_target.rs
+++ b/fuzz/src/bin/msg_closing_signed_target.rs
@@ -12,6 +12,9 @@
 
 #![cfg_attr(feature = "libfuzzer_fuzz", no_main)]
 
+#[cfg(not(fuzzing))]
+compile_error!("Fuzz targets need cfg=fuzzing");
+
 extern crate lightning_fuzz;
 use lightning_fuzz::msg_targets::msg_closing_signed::*;
 
diff --git a/fuzz/src/bin/msg_commitment_signed_target.rs b/fuzz/src/bin/msg_commitment_signed_target.rs
index 407f0288c..0324301fe 100644
--- a/fuzz/src/bin/msg_commitment_signed_target.rs
+++ b/fuzz/src/bin/msg_commitment_signed_target.rs
@@ -12,6 +12,9 @@
 
 #![cfg_attr(feature = "libfuzzer_fuzz", no_main)]
 
+#[cfg(not(fuzzing))]
+compile_error!("Fuzz targets need cfg=fuzzing");
+
 extern crate lightning_fuzz;
 use lightning_fuzz::msg_targets::msg_commitment_signed::*;
 
diff --git a/fuzz/src/bin/msg_decoded_onion_error_packet_target.rs b/fuzz/src/bin/msg_decoded_onion_error_packet_target.rs
index 9f76e6967..1f99bab2b 100644
--- a/fuzz/src/bin/msg_decoded_onion_error_packet_target.rs
+++ b/fuzz/src/bin/msg_decoded_onion_error_packet_target.rs
@@ -12,6 +12,9 @@
 
 #![cfg_attr(feature = "libfuzzer_fuzz", no_main)]
 
+#[cfg(not(fuzzing))]
+compile_error!("Fuzz targets need cfg=fuzzing");
+
 extern crate lightning_fuzz;
 use lightning_fuzz::msg_targets::msg_decoded_onion_error_packet::*;
 
diff --git a/fuzz/src/bin/msg_error_message_target.rs b/fuzz/src/bin/msg_error_message_target.rs
index dc418c93d..8609bf65a 100644
--- a/fuzz/src/bin/msg_error_message_target.rs
+++ b/fuzz/src/bin/msg_error_message_target.rs
@@ -12,6 +12,9 @@
 
 #![cfg_attr(feature = "libfuzzer_fuzz", no_main)]
 
+#[cfg(not(fuzzing))]
+compile_error!("Fuzz targets need cfg=fuzzing");
+
 extern crate lightning_fuzz;
 use lightning_fuzz::msg_targets::msg_error_message::*;
 
diff --git a/fuzz/src/bin/msg_funding_created_target.rs b/fuzz/src/bin/msg_funding_created_target.rs
index 6fb87c408..51ac425d7 100644
--- a/fuzz/src/bin/msg_funding_created_target.rs
+++ b/fuzz/src/bin/msg_funding_created_target.rs
@@ -12,6 +12,9 @@
 
 #![cfg_attr(feature = "libfuzzer_fuzz", no_main)]
 
+#[cfg(not(fuzzing))]
+compile_error!("Fuzz targets need cfg=fuzzing");
+
 extern crate lightning_fuzz;
 use lightning_fuzz::msg_targets::msg_funding_created::*;
 
diff --git a/fuzz/src/bin/msg_funding_locked_target.rs b/fuzz/src/bin/msg_funding_locked_target.rs
index 7b8f21f8a..986f7f898 100644
--- a/fuzz/src/bin/msg_funding_locked_target.rs
+++ b/fuzz/src/bin/msg_funding_locked_target.rs
@@ -12,6 +12,9 @@
 
 #![cfg_attr(feature = "libfuzzer_fuzz", no_main)]
 
+#[cfg(not(fuzzing))]
+compile_error!("Fuzz targets need cfg=fuzzing");
+
 extern crate lightning_fuzz;
 use lightning_fuzz::msg_targets::msg_funding_locked::*;
 
diff --git a/fuzz/src/bin/msg_funding_signed_target.rs b/fuzz/src/bin/msg_funding_signed_target.rs
index ea05acdce..bfee1f5ae 100644
--- a/fuzz/src/bin/msg_funding_signed_target.rs
+++ b/fuzz/src/bin/msg_funding_signed_target.rs
@@ -12,6 +12,9 @@
 
 #![cfg_attr(feature = "libfuzzer_fuzz", no_main)]
 
+#[cfg(not(fuzzing))]
+compile_error!("Fuzz targets need cfg=fuzzing");
+
 extern crate lightning_fuzz;
 use lightning_fuzz::msg_targets::msg_funding_signed::*;
 
diff --git a/fuzz/src/bin/msg_gossip_timestamp_filter_target.rs b/fuzz/src/bin/msg_gossip_timestamp_filter_target.rs
index 1aba4e3fe..aa94f2001 100644
--- a/fuzz/src/bin/msg_gossip_timestamp_filter_target.rs
+++ b/fuzz/src/bin/msg_gossip_timestamp_filter_target.rs
@@ -12,6 +12,9 @@
 
 #![cfg_attr(feature = "libfuzzer_fuzz", no_main)]
 
+#[cfg(not(fuzzing))]
+compile_error!("Fuzz targets need cfg=fuzzing");
+
 extern crate lightning_fuzz;
 use lightning_fuzz::msg_targets::msg_gossip_timestamp_filter::*;
 
diff --git a/fuzz/src/bin/msg_init_target.rs b/fuzz/src/bin/msg_init_target.rs
index dd7b197a4..342ceaf3f 100644
--- a/fuzz/src/bin/msg_init_target.rs
+++ b/fuzz/src/bin/msg_init_target.rs
@@ -12,6 +12,9 @@
 
 #![cfg_attr(feature = "libfuzzer_fuzz", no_main)]
 
+#[cfg(not(fuzzing))]
+compile_error!("Fuzz targets need cfg=fuzzing");
+
 extern crate lightning_fuzz;
 use lightning_fuzz::msg_targets::msg_init::*;
 
diff --git a/fuzz/src/bin/msg_node_announcement_target.rs b/fuzz/src/bin/msg_node_announcement_target.rs
index 63b23bd66..320126337 100644
--- a/fuzz/src/bin/msg_node_announcement_target.rs
+++ b/fuzz/src/bin/msg_node_announcement_target.rs
@@ -12,6 +12,9 @@
 
 #![cfg_attr(feature = "libfuzzer_fuzz", no_main)]
 
+#[cfg(not(fuzzing))]
+compile_error!("Fuzz targets need cfg=fuzzing");
+
 extern crate lightning_fuzz;
 use lightning_fuzz::msg_targets::msg_node_announcement::*;
 
diff --git a/fuzz/src/bin/msg_onion_hop_data_target.rs b/fuzz/src/bin/msg_onion_hop_data_target.rs
index 493817c7e..ae21e9bd9 100644
--- a/fuzz/src/bin/msg_onion_hop_data_target.rs
+++ b/fuzz/src/bin/msg_onion_hop_data_target.rs
@@ -12,6 +12,9 @@
 
 #![cfg_attr(feature = "libfuzzer_fuzz", no_main)]
 
+#[cfg(not(fuzzing))]
+compile_error!("Fuzz targets need cfg=fuzzing");
+
 extern crate lightning_fuzz;
 use lightning_fuzz::msg_targets::msg_onion_hop_data::*;
 
diff --git a/fuzz/src/bin/msg_open_channel_target.rs b/fuzz/src/bin/msg_open_channel_target.rs
index d6c9de48f..cee4c0d07 100644
--- a/fuzz/src/bin/msg_open_channel_target.rs
+++ b/fuzz/src/bin/msg_open_channel_target.rs
@@ -12,6 +12,9 @@
 
 #![cfg_attr(feature = "libfuzzer_fuzz", no_main)]
 
+#[cfg(not(fuzzing))]
+compile_error!("Fuzz targets need cfg=fuzzing");
+
 extern crate lightning_fuzz;
 use lightning_fuzz::msg_targets::msg_open_channel::*;
 
diff --git a/fuzz/src/bin/msg_ping_target.rs b/fuzz/src/bin/msg_ping_target.rs
index e739cd580..19e8abe24 100644
--- a/fuzz/src/bin/msg_ping_target.rs
+++ b/fuzz/src/bin/msg_ping_target.rs
@@ -12,6 +12,9 @@
 
 #![cfg_attr(feature = "libfuzzer_fuzz", no_main)]
 
+#[cfg(not(fuzzing))]
+compile_error!("Fuzz targets need cfg=fuzzing");
+
 extern crate lightning_fuzz;
 use lightning_fuzz::msg_targets::msg_ping::*;
 
diff --git a/fuzz/src/bin/msg_pong_target.rs b/fuzz/src/bin/msg_pong_target.rs
index 73113472c..429550bd1 100644
--- a/fuzz/src/bin/msg_pong_target.rs
+++ b/fuzz/src/bin/msg_pong_target.rs
@@ -12,6 +12,9 @@
 
 #![cfg_attr(feature = "libfuzzer_fuzz", no_main)]
 
+#[cfg(not(fuzzing))]
+compile_error!("Fuzz targets need cfg=fuzzing");
+
 extern crate lightning_fuzz;
 use lightning_fuzz::msg_targets::msg_pong::*;
 
diff --git a/fuzz/src/bin/msg_query_channel_range_target.rs b/fuzz/src/bin/msg_query_channel_range_target.rs
index db22fa525..c2ce1fd5f 100644
--- a/fuzz/src/bin/msg_query_channel_range_target.rs
+++ b/fuzz/src/bin/msg_query_channel_range_target.rs
@@ -12,6 +12,9 @@
 
 #![cfg_attr(feature = "libfuzzer_fuzz", no_main)]
 
+#[cfg(not(fuzzing))]
+compile_error!("Fuzz targets need cfg=fuzzing");
+
 extern crate lightning_fuzz;
 use lightning_fuzz::msg_targets::msg_query_channel_range::*;
 
diff --git a/fuzz/src/bin/msg_query_short_channel_ids_target.rs b/fuzz/src/bin/msg_query_short_channel_ids_target.rs
index 6c470e3b1..af3d37065 100644
--- a/fuzz/src/bin/msg_query_short_channel_ids_target.rs
+++ b/fuzz/src/bin/msg_query_short_channel_ids_target.rs
@@ -12,6 +12,9 @@
 
 #![cfg_attr(feature = "libfuzzer_fuzz", no_main)]
 
+#[cfg(not(fuzzing))]
+compile_error!("Fuzz targets need cfg=fuzzing");
+
 extern crate lightning_fuzz;
 use lightning_fuzz::msg_targets::msg_query_short_channel_ids::*;
 
diff --git a/fuzz/src/bin/msg_reply_channel_range_target.rs b/fuzz/src/bin/msg_reply_channel_range_target.rs
index 68651347b..0cddbcaf8 100644
--- a/fuzz/src/bin/msg_reply_channel_range_target.rs
+++ b/fuzz/src/bin/msg_reply_channel_range_target.rs
@@ -12,6 +12,9 @@
 
 #![cfg_attr(feature = "libfuzzer_fuzz", no_main)]
 
+#[cfg(not(fuzzing))]
+compile_error!("Fuzz targets need cfg=fuzzing");
+
 extern crate lightning_fuzz;
 use lightning_fuzz::msg_targets::msg_reply_channel_range::*;
 
diff --git a/fuzz/src/bin/msg_reply_short_channel_ids_end_target.rs b/fuzz/src/bin/msg_reply_short_channel_ids_end_target.rs
index de3e9f1cc..d802299b2 100644
--- a/fuzz/src/bin/msg_reply_short_channel_ids_end_target.rs
+++ b/fuzz/src/bin/msg_reply_short_channel_ids_end_target.rs
@@ -12,6 +12,9 @@
 
 #![cfg_attr(feature = "libfuzzer_fuzz", no_main)]
 
+#[cfg(not(fuzzing))]
+compile_error!("Fuzz targets need cfg=fuzzing");
+
 extern crate lightning_fuzz;
 use lightning_fuzz::msg_targets::msg_reply_short_channel_ids_end::*;
 
diff --git a/fuzz/src/bin/msg_revoke_and_ack_target.rs b/fuzz/src/bin/msg_revoke_and_ack_target.rs
index e0f781986..d72d63cc3 100644
--- a/fuzz/src/bin/msg_revoke_and_ack_target.rs
+++ b/fuzz/src/bin/msg_revoke_and_ack_target.rs
@@ -12,6 +12,9 @@
 
 #![cfg_attr(feature = "libfuzzer_fuzz", no_main)]
 
+#[cfg(not(fuzzing))]
+compile_error!("Fuzz targets need cfg=fuzzing");
+
 extern crate lightning_fuzz;
 use lightning_fuzz::msg_targets::msg_revoke_and_ack::*;
 
diff --git a/fuzz/src/bin/msg_shutdown_target.rs b/fuzz/src/bin/msg_shutdown_target.rs
index 6220fc928..1959a8cfa 100644
--- a/fuzz/src/bin/msg_shutdown_target.rs
+++ b/fuzz/src/bin/msg_shutdown_target.rs
@@ -12,6 +12,9 @@
 
 #![cfg_attr(feature = "libfuzzer_fuzz", no_main)]
 
+#[cfg(not(fuzzing))]
+compile_error!("Fuzz targets need cfg=fuzzing");
+
 extern crate lightning_fuzz;
 use lightning_fuzz::msg_targets::msg_shutdown::*;
 
diff --git a/fuzz/src/bin/msg_update_add_htlc_target.rs b/fuzz/src/bin/msg_update_add_htlc_target.rs
index dffdb8309..47faa7b1b 100644
--- a/fuzz/src/bin/msg_update_add_htlc_target.rs
+++ b/fuzz/src/bin/msg_update_add_htlc_target.rs
@@ -12,6 +12,9 @@
 
 #![cfg_attr(feature = "libfuzzer_fuzz", no_main)]
 
+#[cfg(not(fuzzing))]
+compile_error!("Fuzz targets need cfg=fuzzing");
+
 extern crate lightning_fuzz;
 use lightning_fuzz::msg_targets::msg_update_add_htlc::*;
 
diff --git a/fuzz/src/bin/msg_update_fail_htlc_target.rs b/fuzz/src/bin/msg_update_fail_htlc_target.rs
index 2828b396a..0c47190f7 100644
--- a/fuzz/src/bin/msg_update_fail_htlc_target.rs
+++ b/fuzz/src/bin/msg_update_fail_htlc_target.rs
@@ -12,6 +12,9 @@
 
 #![cfg_attr(feature = "libfuzzer_fuzz", no_main)]
 
+#[cfg(not(fuzzing))]
+compile_error!("Fuzz targets need cfg=fuzzing");
+
 extern crate lightning_fuzz;
 use lightning_fuzz::msg_targets::msg_update_fail_htlc::*;
 
diff --git a/fuzz/src/bin/msg_update_fail_malformed_htlc_target.rs b/fuzz/src/bin/msg_update_fail_malformed_htlc_target.rs
index 8bf82a517..917fad9ce 100644
--- a/fuzz/src/bin/msg_update_fail_malformed_htlc_target.rs
+++ b/fuzz/src/bin/msg_update_fail_malformed_htlc_target.rs
@@ -12,6 +12,9 @@
 
 #![cfg_attr(feature = "libfuzzer_fuzz", no_main)]
 
+#[cfg(not(fuzzing))]
+compile_error!("Fuzz targets need cfg=fuzzing");
+
 extern crate lightning_fuzz;
 use lightning_fuzz::msg_targets::msg_update_fail_malformed_htlc::*;
 
diff --git a/fuzz/src/bin/msg_update_fee_target.rs b/fuzz/src/bin/msg_update_fee_target.rs
index e9e63f28a..f7baec58a 100644
--- a/fuzz/src/bin/msg_update_fee_target.rs
+++ b/fuzz/src/bin/msg_update_fee_target.rs
@@ -12,6 +12,9 @@
 
 #![cfg_attr(feature = "libfuzzer_fuzz", no_main)]
 
+#[cfg(not(fuzzing))]
+compile_error!("Fuzz targets need cfg=fuzzing");
+
 extern crate lightning_fuzz;
 use lightning_fuzz::msg_targets::msg_update_fee::*;
 
diff --git a/fuzz/src/bin/msg_update_fulfill_htlc_target.rs b/fuzz/src/bin/msg_update_fulfill_htlc_target.rs
index 4820b0adf..23197b38e 100644
--- a/fuzz/src/bin/msg_update_fulfill_htlc_target.rs
+++ b/fuzz/src/bin/msg_update_fulfill_htlc_target.rs
@@ -12,6 +12,9 @@
 
 #![cfg_attr(feature = "libfuzzer_fuzz", no_main)]
 
+#[cfg(not(fuzzing))]
+compile_error!("Fuzz targets need cfg=fuzzing");
+
 extern crate lightning_fuzz;
 use lightning_fuzz::msg_targets::msg_update_fulfill_htlc::*;
 
diff --git a/fuzz/src/bin/peer_crypt_target.rs b/fuzz/src/bin/peer_crypt_target.rs
index 8f6262698..c7cbe8c2c 100644
--- a/fuzz/src/bin/peer_crypt_target.rs
+++ b/fuzz/src/bin/peer_crypt_target.rs
@@ -12,6 +12,9 @@
 
 #![cfg_attr(feature = "libfuzzer_fuzz", no_main)]
 
+#[cfg(not(fuzzing))]
+compile_error!("Fuzz targets need cfg=fuzzing");
+
 extern crate lightning_fuzz;
 use lightning_fuzz::peer_crypt::*;
 
diff --git a/fuzz/src/bin/router_target.rs b/fuzz/src/bin/router_target.rs
index 4df8b2a00..2082f115a 100644
--- a/fuzz/src/bin/router_target.rs
+++ b/fuzz/src/bin/router_target.rs
@@ -12,6 +12,9 @@
 
 #![cfg_attr(feature = "libfuzzer_fuzz", no_main)]
 
+#[cfg(not(fuzzing))]
+compile_error!("Fuzz targets need cfg=fuzzing");
+
 extern crate lightning_fuzz;
 use lightning_fuzz::router::*;
 
diff --git a/fuzz/src/bin/target_template.txt b/fuzz/src/bin/target_template.txt
index 7db3bc80b..7b0ec0eeb 100644
--- a/fuzz/src/bin/target_template.txt
+++ b/fuzz/src/bin/target_template.txt
@@ -12,6 +12,9 @@
 
 #![cfg_attr(feature = "libfuzzer_fuzz", no_main)]
 
+#[cfg(not(fuzzing))]
+compile_error!("Fuzz targets need cfg=fuzzing");
+
 extern crate lightning_fuzz;
 use lightning_fuzz::TARGET_MOD::*;
 
diff --git a/fuzz/src/bin/zbase32_target.rs b/fuzz/src/bin/zbase32_target.rs
index 0b9d62915..1553d6d2b 100644
--- a/fuzz/src/bin/zbase32_target.rs
+++ b/fuzz/src/bin/zbase32_target.rs
@@ -12,6 +12,9 @@
 
 #![cfg_attr(feature = "libfuzzer_fuzz", no_main)]
 
+#[cfg(not(fuzzing))]
+compile_error!("Fuzz targets need cfg=fuzzing");
+
 extern crate lightning_fuzz;
 use lightning_fuzz::zbase32::*;
 
diff --git a/lightning/src/lib.rs b/lightning/src/lib.rs
index 132189858..2798f78ad 100644
--- a/lightning/src/lib.rs
+++ b/lightning/src/lib.rs
@@ -36,6 +36,9 @@
 #[cfg(not(any(feature = "std", feature = "no-std")))]
 compile_error!("at least one of the `std` or `no-std` features must be enabled");
 
+#[cfg(all(fuzzing, test))]
+compile_error!("Tests will always fail with cfg=fuzzing");
+
 #[macro_use]
 extern crate alloc;
 extern crate bitcoin;