From 0461d95999923aa9d6470fc05e6cafd4bc4644f7 Mon Sep 17 00:00:00 2001
From: kichikuou <KichikuouChrome@gmail.com>
Date: Tue, 14 Apr 2026 20:25:58 +0900
Subject: [PATCH] Suppress -Warray-bounds for ymfm

ymfm's fm_engine_base::output() contains OPL-specific rhythm code that
accesses m_operator[13]/[17], which is out-of-bounds when instantiated
for OPN (OPERATORS=12). The code is unreachable at runtime because
rhythm_enable() returns false for OPN, but newer clang (emscripten) flag
it statically.
---
 CMakeLists.txt | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 3780594..afcd042 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -30,6 +30,10 @@ add_library(ymfm
   deps/ymfm/src/ymfm_adpcm.cpp
   deps/ymfm/src/ymfm_ssg.cpp)
 target_include_directories(ymfm PUBLIC deps/ymfm/src)
+# Suppress false-positive -Warray-bounds in ymfm_fm.ipp.
+if (NOT MSVC)
+  target_compile_options(ymfm PRIVATE -Wno-array-bounds)
+endif()
 
 
 if (ANDROID)