Merge pull request #1686 from peternewman/0.10-clang-6.0

Switch to clang-11 on Travis

.travis.yml

@@ -38,7 +38,7 @@ addons:
      - g++-9
     packages: &core_build_clang_latest
      - *core_build
-     - clang-10
+     - clang-11
 
 matrix:
   fast_finish: true
@@ -99,7 +99,7 @@ matrix:
            - *core_build_clang_latest
           sources:
            - sourceline: "ppa:ubuntu-toolchain-r/test"
-           - sourceline: "deb http://apt.llvm.org/xenial/ llvm-toolchain-xenial-10 main"
+           - sourceline: "deb http://apt.llvm.org/xenial/ llvm-toolchain-xenial-11 main"
              key_url: "https://apt.llvm.org/llvm-snapshot.gpg.key"
     - os: linux
       dist: xenial
@@ -350,7 +350,7 @@ before_install:
  - if [ "$TRAVIS_OS_NAME" == "linux" -a \( "$TASK" = "compile" -o "$TASK" = "coverage" -o "$TASK" = "doxygen" \) -a "$CXX" = "g++" ]; then export CXX="ccache g++-9" CC="ccache gcc-9"; fi
  - if [ "$TASK" = "coverity" -a "$CXX" = "g++" ]; then export CXX="g++-4.9" CC="gcc-4.9"; fi
 #Use the latest clang if we're compiling with clang
- - if [ "$TRAVIS_OS_NAME" == "linux" -a "$CXX" = "clang++" ]; then export CXX="clang++-10" CC="clang-10"; fi
+ - if [ "$TRAVIS_OS_NAME" == "linux" -a "$CXX" = "clang++" ]; then export CXX="clang++-11" CC="clang-11"; fi
 #Report the compiler version
  - $CXX --version
  - if [ "$TASK" == "spellintian" -o "$TASK" == "spellintian-duplicates" ]; then wget "http://old-releases.ubuntu.com/ubuntu/pool/main/l/lintian/lintian_2.5.104_all.deb"; sudo dpkg -i lintian_*.deb; sudo apt-get install -f -y; fi # Install a later lintian