first pass: Travis integration (#75)

* travis test

* add master branch

* travis fixes

* travis update

* travis update

* travis update

* travis update

* travis update

* travis update

* travis update

* travis update

* travis update

* travis update

* travis update

* travis update

* travis update

* add atomic header

* travis update

* travis update

* travis update

* travis update

* travis update

* travis update

* travis update

* travis update

* remove unnecessary change

* remove unnecessary change

* Update .travis.yml

.travis.yml

+os:
+  - linux
+  - osx
+
+language: 
+  - cpp
+
+# force updated ubuntu distribution with up-to-date gcc
+dist: bionic
+
+branches:
+  - master
+
+env:
+  global:
+  - PKGS_OSX="jack qt rt-audio"
+  
+addons:
+  apt:
+    update: true
+    packages:
+      - qt5-default
+      - qttools5-dev-tools
+      - libjack-dev 
+      - librtaudio-dev
+
+before_script:
+  - if [ "$TRAVIS_OS_NAME" = "osx" ]; then 
+      # manually install brew packages as addon: homebrew is broken in the default osx image
+      brew install $PKGS_OSX;
+      # mac: workaround for homebrew qmake not being symlinked into $PATH
+      # see https://stackoverflow.com/questions/48847505/why-cant-i-use-qmake-on-mac-after-installing-it
+      export PATH="/usr/local/opt/qt/bin:$PATH";
+    fi
+
+script: 
+  - cd src
+  - ./build
+  
+after_success:
+  - echo "Success!"
+
+after_failure:
+  - echo "Something went wrong :("

src/RingBuffer.h

@@ -44,6 +44,8 @@
 
 #include "jacktrip_types.h"
 
+#include <atomic>
+
 //using namespace JackTripNamespace;
 
 

src/build

@@ -17,9 +17,6 @@ if [[ $platform == 'linux' ]]; then
     if hash qmake-qt5 2>/dev/null; then
 	echo "Using qmake-qt5"
 	QCMD=qmake-qt5
-    elif hash qmake-qt4 2>/dev/null; then
-	echo "Using qmake-qt4"
-	QCMD=qmake-qt4
     elif hash qmake 2>/dev/null; then #in case qt was compiled by user
 	echo "Using qmake"
 	QCMD=qmake