From 653ce3550d18a07194a4c3bb9b4a3d260ed842cd Mon Sep 17 00:00:00 2001
From: Jay Berkenbilt <ejb@ql.org>
Date: Sat, 13 Jul 2019 18:33:40 -0400
Subject: Require C++-11

Includes updates to m4/ax_cxx_compile_stdcxx.m4 to make it work with
msvc, which supports C++-11 with no flags but doesn't set __cplusplus
to a recent value.
---
 configure.ac | 1 +
 1 file changed, 1 insertion(+)

(limited to 'configure.ac')

diff --git a/configure.ac b/configure.ac
index da8a90a9..3d0d5159 100644
--- a/configure.ac
+++ b/configure.ac
@@ -36,6 +36,7 @@ fi
 AC_PROG_CC
 AC_PROG_CC_C99
 AC_PROG_CXX
+AX_CXX_COMPILE_STDCXX([11], [noext], [mandatory])
 AC_HEADER_STDC
 LT_INIT([win32-dll])
 
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