From 0e98a8fd87fb2e309d32b4934f7db7d2dea59208 Mon Sep 17 00:00:00 2001
From: Gabriel Ferreira <gabrielcarvfer@gmail.com>
Date: Mon, 4 Nov 2024 20:24:24 +0100
Subject: [PATCH] build: Disable class-memaccess compiler error when using
 eigen on ARM64

---
 build-support/macros-and-definitions.cmake | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/build-support/macros-and-definitions.cmake b/build-support/macros-and-definitions.cmake
index 29fb24072..79631d7be 100644
--- a/build-support/macros-and-definitions.cmake
+++ b/build-support/macros-and-definitions.cmake
@@ -552,6 +552,11 @@ macro(process_options)
 
     if(${EIGEN3_FOUND})
       set(ENABLE_EIGEN True)
+      # Prevent warning as error for ARM NEON PacketMath
+      if("${CMAKE_SYSTEM_PROCESSOR}" STREQUAL "aarch64")
+        add_compile_options(-Wno-error=class-memaccess)
+      endif()
+
       add_definitions(-DHAVE_EIGEN3)
       add_definitions(-DEIGEN_MPL2_ONLY)
       include_directories(${EIGEN3_INCLUDE_DIR})