From dd365e0b1457c29e13fd1d3fa8eec4c18c792d92 Mon Sep 17 00:00:00 2001
From: The Great Wizard Azkali <10491142+Azkali@users.noreply.github.com>
Date: Tue, 6 Jul 2021 22:35:21 +0200
Subject: Fix missing CONFIG_64BIT kernel for older kernel

On older kernel < 5.X sigcontext.h defines this flag `#ifdef CONFIG_64BIT` which prevents building on some platforms.
---
 CMakeLists.txt | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index bcb28e0e..db301129 100755
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -432,6 +432,11 @@ endif()
 
 string(COMPARE EQUAL "${CMAKE_HOST_SYSTEM_PROCESSOR}" "i686"  _x86)
 string(COMPARE EQUAL "${CMAKE_HOST_SYSTEM_PROCESSOR}" "x86_64"  _x86_64)
+string(COMPARE EQUAL "${CMAKE_HOST_SYSTEM_PROCESSOR}" "aarch64"  _aarch64)
+
+if(_x86_64 OR _aarch64)
+  add_definitions(-DCONFIG_64BIT)
+endif()
 
 if(NOT _x86 AND NOT _x86_64)
   install(TARGETS ${BOX64}
-- 
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