From 4e5ca6be6c52a70c2fb79ecd3eb2046cbf5fdac1 Mon Sep 17 00:00:00 2001
From: Christoph Urlacher <christoph.urlacher@protonmail.com>
Date: Wed, 4 Mar 2026 20:47:34 +0100
Subject: [PATCH] fix nix build error

---
 CMakeLists.txt | 5 +++--
 src/main.cpp   | 2 +-
 2 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 3ff816e..4062036 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -68,8 +68,9 @@ if(NOT DISABLE_TRACY)
     list(APPEND FLAGS TRACY)
 endif()
 
-# Set this after fetching tracy to hide tracy's warnings
-set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -Wextra -Wfloat-equal -Wundef -Wshadow -Wpointer-arith -Wcast-align -Wno-unused-parameter -Wunreachable-code")
+# Set this after fetching tracy to hide tracy's warnings.
+# We set -Wno-alloc-size-larger-than because it prevents BS::thread_pool from building with current gcc
+set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -Wextra -Wfloat-equal -Wundef -Wshadow -Wpointer-arith -Wcast-align -Wno-unused-parameter -Wunreachable-code -Wno-alloc-size-larger-than")
 set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} -ggdb -O0")
 set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -ggdb -O3 -ffast-math -march=native")
 
diff --git a/src/main.cpp b/src/main.cpp
index 4fd3b10..981ff83 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -38,7 +38,7 @@ auto set_pool_thread_name(size_t idx) -> void
     BS::this_thread::set_os_thread_name(std::format("worker-{}", idx));
 }
 
-BS::thread_pool<> threads(std::thread::hardware_concurrency(), set_pool_thread_name);
+BS::thread_pool<> threads(std::thread::hardware_concurrency() - 2, set_pool_thread_name);
 constexpr std::optional<BS::thread_pool<>* const> thread_pool = &threads;
 #else
 constexpr std::optional<BS::thread_pool<>* const> thread_pool = std::nullopt;