From 043d2e7485174ac0c36aa98c533321f8f350078c Mon Sep 17 00:00:00 2001
From: Username404 <w.iron.zombie@gmail.com>
Date: Mon, 9 Aug 2021 14:39:09 +0200
Subject: [PATCH] Make the GNU compiler message a FATAL_ERROR in the
 CMakeLists.txt file.

---
 CMakeLists.txt | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 0aec58b..ca52e7e 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -47,7 +47,7 @@ endif()
 
 if (${CMAKE_CXX_COMPILER_ID} STREQUAL GNU)
     if (CMAKE_CXX_COMPILER_VERSION VERSION_LESS 11.0)
-        message(WARNING "A GNU compiler version of preferably 11 or higher should be used.")
+        message(FATAL_ERROR "A GNU compiler version of preferably 11 or higher is required.")
     endif()
     set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -fira-loop-pressure -ftree-loop-distribution -floop-interchange -fipa-pta -fivopts -s")
     set(CMAKE_CXX_FLAGS "-fno-use-linker-plugin -fwhole-program ${CMAKE_CXX_FLAGS}")