From dd4aa6fb9da11ee89cab3e2cbb4f11733bf7c163 Mon Sep 17 00:00:00 2001
From: Danila Fedorin <danila.fedorin@gmail.com>
Date: Wed, 9 Sep 2020 15:14:37 -0700
Subject: [PATCH] Require C++17 for optionals

---
 code/compiler/13/CMakeLists.txt | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/code/compiler/13/CMakeLists.txt b/code/compiler/13/CMakeLists.txt
index 8a3f3c1..851c568 100644
--- a/code/compiler/13/CMakeLists.txt
+++ b/code/compiler/13/CMakeLists.txt
@@ -1,6 +1,10 @@
 cmake_minimum_required(VERSION 3.1)
 project(compiler)
 
+# We want C++17 for std::optional
+set(CMAKE_CXX_STANDARD 17)
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
+
 # Find all the required packages
 find_package(BISON)
 find_package(FLEX)