From d1fc43ff778cd674dafd473b1e10267c66c8c70b Mon Sep 17 00:00:00 2001
From: Peter Dimov <pdimov@pdimov.com>
Date: Tue, 21 Nov 2017 20:34:01 +0200
Subject: [PATCH] Install libstdc++ 4.9 for clang to avoid ::gets error

---
 .travis.yml | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/.travis.yml b/.travis.yml
index 4af7b68..efee5ec 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -61,6 +61,12 @@ matrix:
     - os: linux
       compiler: clang++
       env: TOOLSET=clang CXXSTD=03,11,14,1z
+      addons:
+        apt:
+          packages:
+            - libstdc++-4.9-dev
+          sources:
+            - ubuntu-toolchain-r-test
 
     - os: osx
       compiler: clang++