From 9a53b3b66a1c8502499e17421cf7f34078158df9 Mon Sep 17 00:00:00 2001
From: Vadim Zeitlin <vadim@wxwidgets.org>
Date: Wed, 22 Apr 2020 15:48:54 +0200
Subject: [PATCH] Use C++17 and STL for Xcode 11.3 Travis CI build

Note that using C++98 results in tests build failure with clang as
libc++ doesn't allow using custom std::swap() specialization for
non-const references in its iter_swap(), it really requires using rvalue
references, which are, of course, only available in C++11 and later.
---
 .travis.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.travis.yml b/.travis.yml
index 1af91101e6..187ad010b0 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -43,7 +43,7 @@ matrix:
           name: wxOSX Xcode 9.4
         - os: osx
           osx_image: xcode11.3
-          env: wxCONFIGURE_FLAGS="--enable-monolithic"
+          env: wxCONFIGURE_FLAGS="--enable-monolithic --with-cxx=17 --enable-stl"
           name: wxOSX Xcode 11.3
         - dist: bionic
           compiler: gcc