From 76442f912065e4d34c2d498f72084a08461546ff Mon Sep 17 00:00:00 2001
From: Peter Dimov <pdimov@gmail.com>
Date: Sat, 7 Dec 2019 21:08:57 +0200
Subject: [PATCH] Add clang-9 to Travis

---
 .travis.yml | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/.travis.yml b/.travis.yml
index 8579770..731c869 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -224,6 +224,19 @@ matrix:
             - ubuntu-toolchain-r-test
             - llvm-toolchain-trusty-8
 
+    - os: linux
+      dist: xenial
+      compiler: clang++-9
+      env: TOOLSET=clang COMPILER=clang++-9 CXXSTD=11,14,17,2a
+      addons:
+        apt:
+          packages:
+            - clang-9
+          sources:
+            - ubuntu-toolchain-r-test
+            - sourceline: 'deb https://apt.llvm.org/xenial/ llvm-toolchain-xenial-9 main'
+              key_url: 'https://apt.llvm.org/llvm-snapshot.gpg.key'
+
     - os: linux
       compiler: clang++-libc++
       env: TOOLSET=clang COMPILER=clang++-libc++ CXXSTD=11,14,1z