From a7bafb3e05045e4079690b508b2fff6defdb2cff Mon Sep 17 00:00:00 2001
From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com>
Date: Fri, 1 Aug 2025 12:07:26 +0100
Subject: [PATCH] refactor: Use immediate lambda to work around GCC bug 117966

---
 src/musig.h | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/musig.h b/src/musig.h
index d46a67f65e..69c82ddda3 100644
--- a/src/musig.h
+++ b/src/musig.h
@@ -14,7 +14,12 @@ struct secp256k1_musig_keyagg_cache;
 
 //! MuSig2 chaincode as defined by BIP 328
 using namespace util::hex_literals;
-constexpr uint256 MUSIG_CHAINCODE{"868087ca02a6f974c4598924c36b57762d32cb45717167e300622c7167e38965"_hex_u8};
+constexpr uint256 MUSIG_CHAINCODE{
+    // Use immediate lambda to work around GCC-14 bug https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117966
+    []() consteval { return uint256{"868087ca02a6f974c4598924c36b57762d32cb45717167e300622c7167e38965"_hex_u8}; }(),
+};
+
+
 
 //! Create a secp256k1_musig_keyagg_cache from the pubkeys in their current order. This is necessary for most MuSig2 operations
 bool GetMuSig2KeyAggCache(const std::vector<CPubKey>& pubkeys, secp256k1_musig_keyagg_cache& keyagg_cache);