From 38c7b0f4e74e49d5808bf9fc4c79333ee6b3291a Mon Sep 17 00:00:00 2001
From: Andrei Pavel <andrei@isc.org>
Date: Wed, 5 Oct 2022 17:18:35 +0300
Subject: [#2311] detect C++20 in autoconf

And enforce -std=c++20 when building
--with-libyang-cpp or --with-sysrepo-cpp.
---
 configure.ac | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'configure.ac')

diff --git a/configure.ac b/configure.ac
index 9f9336a83c..99d38edf48 100644
--- a/configure.ac
+++ b/configure.ac
@@ -161,6 +161,9 @@ AM_CONDITIONAL(USE_CLANGPP, test "X${CLANGPP}" = "Xyes")
 # Check for C++11 features support
 AX_ISC_CPP11
 
+# Check for C++20 compiler support.
+AX_ISC_CPP20
+
 # Check for std::is_base_of support
 AC_MSG_CHECKING([for std::is_base_of])
 AC_COMPILE_IFELSE(
-- 
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