This patch is not upstreamed. It followed the suggestion in
https://github.com/Megaxela/QCodeEditor/pull/50#issuecomment-3188359371.

From 4de40b23ffc1af37c72ac3b3263e1457b9fe1efb Mon Sep 17 00:00:00 2001
From: Sughosha <sughosha@disroot.org>
Date: Fri, 24 Jul 2026 11:05:39 +0530
Subject: [PATCH] Fix build with C++17.

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

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 40d5617..64d35b9 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -92,7 +92,6 @@ target_include_directories(QCodeEditor PUBLIC
 if(CMAKE_COMPILER_IS_GNUCXX)
     target_compile_options(QCodeEditor
 		PRIVATE
-		-ansi
 		-pedantic
 		-Wall
 		-Wextra
-- 
2.54.0