From 828df85a305d3fd2b6cd6055028aa8a1914723f4 Mon Sep 17 00:00:00 2001
From: Kevin Ring <kevin@kotachrome.com>
Date: Thu, 11 Apr 2024 16:15:42 +1000
Subject: [PATCH] Specify build with C++23.

Without this (I think), builds are failing on Windows due to "missing"
std::optional.
---
 CMakeLists.txt | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 545e7b29..aa90eec0 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -9,6 +9,13 @@ set(XATLAS_HEADERS "xatlas.h")
 
 add_library(xatlas ${XATLAS_SRC} ${XATLAS_HEADERS})
 
+# cxx version
+set_target_properties(xatlas PROPERTIES
+    CXX_STANDARD 23
+    CXX_STANDARD_REQUIRED ON
+    CXX_EXTENSIONS OFF
+)
+
 target_include_directories(
     xatlas
     PUBLIC