From 585c17a2dda766ac4d442c4b9f998e18cb1b2d98 Mon Sep 17 00:00:00 2001
From: Michele Calgaro <michele.calgaro@yahoo.it>
Date: Sun, 14 Dec 2025 11:28:07 +0900
Subject: Raised required C++ standard to c++17

Signed-off-by: Michele Calgaro <michele.calgaro@yahoo.it>
---
 acinclude.m4.in  | 3 +++
 configure.in.min | 2 +-
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/acinclude.m4.in b/acinclude.m4.in
index c75d383..f3dc0fb 100644
--- a/acinclude.m4.in
+++ b/acinclude.m4.in
@@ -6532,6 +6532,9 @@ m4_define([_TDE_CXX_COMPILE_STDCXX_testbody_14],
   _TDE_CXX_COMPILE_STDCXX_testbody_new_in_14
 )
 
+
+dnl  Test body for checking C++17 support
+
 m4_define([_TDE_CXX_COMPILE_STDCXX_testbody_17],
   _TDE_CXX_COMPILE_STDCXX_testbody_new_in_11
   _TDE_CXX_COMPILE_STDCXX_testbody_new_in_14
diff --git a/configure.in.min b/configure.in.min
index 33e23dc..d645355 100644
--- a/configure.in.min
+++ b/configure.in.min
@@ -46,7 +46,7 @@ AC_CONFIG_HEADER(config.h) dnl at the distribution this done
 dnl Checks for programs.
 AC_PROG_CC
 AC_PROG_CXX
-TDE_CXX_COMPILE_STDCXX(11)
+TDE_CXX_COMPILE_STDCXX(17, noext, mandatory)
 AC_CHECK_COMPILERS
 AC_ENABLE_SHARED(yes)
 AC_ENABLE_STATIC(no)
-- 
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