Fix linux travis CI

Author: paceholder

.travis.yml

@@ -6,7 +6,7 @@ matrix:
       dist: xenial
       sudo: false
       compiler: clang
-      env: CXX=clang++-7 CC=clang-7 QT=511
+      env: CXX=clang++-7 CC=clang-7 QT=512
       addons:
         apt:
           sources:
@@ -18,7 +18,7 @@ matrix:
       dist: xenial
       sudo: false
       compiler: gcc
-      env: CXX=g++-7 CC=gcc-7 QT=511
+      env: CXX=g++-7 CC=gcc-7 QT=512
       addons:
         apt:
           sources:
@@ -39,9 +39,9 @@ before_install:
    - if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then brew install qt; fi
    - if [[ "$TRAVIS_OS_NAME" == "linux" ]]; then sudo apt-get update -qq ; fi
    - if [[ "$TRAVIS_OS_NAME" == "linux" ]]; then sudo apt-get install build-essential libgl1-mesa-dev ; fi
-   - if [[ "$TRAVIS_OS_NAME" == "linux" ]]; then sudo apt-get -yqq install qt511base; source /opt/qt511/bin/qt511-env.sh; fi
-   - if [[ "$QT" == "511" ]]; then sudo add-apt-repository ppa:beineri/opt-qt-5.11.2-xenial -y; fi
-   - if [[ "$QT" == "511" ]]; then sudo apt-get update -qq; fi
+   - if [[ "$QT" == "512" ]]; then sudo add-apt-repository ppa:beineri/opt-qt-5.12.1-xenial -y; fi
+   - if [[ "$QT" == "512" ]]; then sudo apt-get update -qq; fi
+   - if [[ "$TRAVIS_OS_NAME" == "linux" ]]; then sudo apt-get -yqq install qt512base; source /opt/qt511/bin/qt512-env.sh; fi
 
 script:
   - mkdir build