From d30c81ab011535376d0c54a26347ee1c1d50204f Mon Sep 17 00:00:00 2001
From: Peter Dimov <pdimov@gmail.com>
Date: Mon, 24 Aug 2020 13:41:27 +0300
Subject: [PATCH] Update .travis.yml

---
 .travis.yml | 17 ++---------------
 1 file changed, 2 insertions(+), 15 deletions(-)

diff --git a/.travis.yml b/.travis.yml
index 545c7a1..2e569ea 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -4,16 +4,14 @@
 
 language: cpp
 
-sudo: false
-
-python: "2.7"
-
 branches:
   only:
     - master
     - develop
     - /feature\/.*/
 
+dist: xenial
+
 env:
   matrix:
     - BOGUS_JOB=true
@@ -78,7 +76,6 @@ matrix:
             - ubuntu-toolchain-r-test
 
     - os: linux
-      dist: trusty
       compiler: g++-7
       env: TOOLSET=gcc COMPILER=g++-7 CXXSTD=03,11,14,17
       addons:
@@ -99,10 +96,8 @@ matrix:
         apt:
           packages:
             - clang-3.5
-            - libstdc++-4.9-dev
           sources:
             - ubuntu-toolchain-r-test
-            - llvm-toolchain-precise-3.5
 
     - os: linux
       compiler: clang++-3.6
@@ -113,7 +108,6 @@ matrix:
             - clang-3.6
           sources:
             - ubuntu-toolchain-r-test
-            - llvm-toolchain-precise-3.6
 
     - os: linux
       compiler: clang++-3.7
@@ -124,7 +118,6 @@ matrix:
             - clang-3.7
           sources:
             - ubuntu-toolchain-r-test
-            - llvm-toolchain-precise-3.7
 
     - os: linux
       compiler: clang++-3.8
@@ -133,10 +126,8 @@ matrix:
         apt:
           packages:
             - clang-3.8
-            - libstdc++-4.9-dev
           sources:
             - ubuntu-toolchain-r-test
-            - llvm-toolchain-precise-3.8
 
     - os: linux
       compiler: clang++-3.9
@@ -145,10 +136,8 @@ matrix:
         apt:
           packages:
             - clang-3.9
-            - libstdc++-4.9-dev
           sources:
             - ubuntu-toolchain-r-test
-            - llvm-toolchain-precise-3.9
 
     - os: linux
       compiler: clang++-4.0
@@ -159,7 +148,6 @@ matrix:
             - clang-4.0
           sources:
             - ubuntu-toolchain-r-test
-            - llvm-toolchain-trusty-4.0
 
     - os: linux
       compiler: clang++-5.0
@@ -170,7 +158,6 @@ matrix:
             - clang-5.0
           sources:
             - ubuntu-toolchain-r-test
-            - llvm-toolchain-trusty-5.0
 
     - os: osx
       compiler: clang++