From 32d3b843073eaab0f8c9a30f862c5550b219213c Mon Sep 17 00:00:00 2001
From: Frido Friedemann <friede.mann@posteo.de>
Date: Sat, 21 May 2022 19:11:35 +0200
Subject: [PATCH] libbitcoin: fix gcc11 compilation by patch

---
 .../misc/libbitcoin/fix-gcc11-compilation.patch      | 12 ++++++++++++
 pkgs/tools/misc/libbitcoin/libbitcoin.nix            |  2 ++
 2 files changed, 14 insertions(+)
 create mode 100644 pkgs/tools/misc/libbitcoin/fix-gcc11-compilation.patch

diff --git a/pkgs/tools/misc/libbitcoin/fix-gcc11-compilation.patch b/pkgs/tools/misc/libbitcoin/fix-gcc11-compilation.patch
new file mode 100644
index 00000000000..fe1b9777275
--- /dev/null
+++ b/pkgs/tools/misc/libbitcoin/fix-gcc11-compilation.patch
@@ -0,0 +1,12 @@
+diff --git a/include/bitcoin/bitcoin/wallet/dictionary.hpp b/include/bitcoin/bitcoin/wallet/dictionary.hpp
+index 632f1afc..63a51764 100644
+--- a/include/bitcoin/bitcoin/wallet/dictionary.hpp
++++ b/include/bitcoin/bitcoin/wallet/dictionary.hpp
+@@ -19,6 +19,7 @@
+ #ifndef LIBBITCOIN_WALLET_DICTIONARY_HPP
+ #define LIBBITCOIN_WALLET_DICTIONARY_HPP
+ 
++#include <cstddef>
+ #include <array>
+ #include <vector>
+ #include <bitcoin/bitcoin/compat.hpp>
diff --git a/pkgs/tools/misc/libbitcoin/libbitcoin.nix b/pkgs/tools/misc/libbitcoin/libbitcoin.nix
index 65bd52a0302..88f9a81561b 100644
--- a/pkgs/tools/misc/libbitcoin/libbitcoin.nix
+++ b/pkgs/tools/misc/libbitcoin/libbitcoin.nix
@@ -21,6 +21,8 @@ in stdenv.mkDerivation {
 
   enableParallelBuilding = true;
 
+  patches = [ ./fix-gcc11-compilation.patch ];
+
   configureFlags = [
     "--with-tests=no"
     "--with-boost=${boost.dev}"