From 4ac3e71f7788b438b3f8b36eb2109b538fc8666c Mon Sep 17 00:00:00 2001
From: Sergiu Deitsch <sergiu.deitsch@gmail.com>
Date: Mon, 22 Sep 2025 17:45:39 +0200
Subject: [PATCH] CMake: Require at least C++14

---
 CMakeLists.txt | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index ec979b4ff..501584fb8 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -217,6 +217,9 @@ target_include_directories (eigen INTERFACE
   $<INSTALL_INTERFACE:${INCLUDE_INSTALL_DIR}>
 )
 
+# Eigen requires at least C++14
+target_compile_features (eigen INTERFACE cxx_std_14)
+
 # Export as title case Eigen
 set_target_properties (eigen PROPERTIES EXPORT_NAME Eigen)