Merge pull request #248 from mbehr1/travis_trusty

change travis-ci to use dist trusty

.travis.yml

@@ -1,3 +1,6 @@
+sudo: required
+dist: trusty
+
 language: cpp
 
 compiler: 
@@ -10,11 +13,11 @@ env:
 before_install:
   - sudo add-apt-repository ppa:ubuntu-toolchain-r/test -y
   - sudo apt-get update -qq
-  - if [ "$CXX" = "g++" ]; then sudo apt-get install -qq g++-4.8; export CXX="g++-4.8" CC="gcc-4.8"; else echo "yes" | sudo add-apt-repository 'deb http://ppa.launchpad.net/ubuntu-toolchain-r/test/ubuntu precise main'; echo "yes" | sudo add-apt-repository 'deb http://llvm.org/apt/precise/ llvm-toolchain-precise-3.6 main'; wget -O - http://llvm.org/apt/llvm-snapshot.gpg.key | sudo apt-key add -; sudo apt-get update; sudo apt-get install -qq --allow-unauthenticated llvm-3.6 llvm-3.6-dev clang-3.6 libstdc++-4.8-dev; export CXX="clang++-3.6" CC="clang-3.6"; fi
+# uncomment for ubuntu precise. not needed for >=trusty - if [ "$CXX" = "g++" ]; then sudo apt-get install -y -qq g++-4.8; export CXX="g++-4.8" CC="gcc-4.8"; else echo "yes" | sudo add-apt-repository 'deb http://ppa.launchpad.net/ubuntu-toolchain-r/test/ubuntu precise main'; echo "yes" | sudo add-apt-repository 'deb http://llvm.org/apt/precise/ llvm-toolchain-precise-3.6 main'; wget -O - http://llvm.org/apt/llvm-snapshot.gpg.key | sudo apt-key add -; sudo apt-get update; sudo apt-get install -qq --allow-unauthenticated llvm-3.6 llvm-3.6-dev clang-3.6 libstdc++-4.8-dev; export CXX="clang++-3.6" CC="clang-3.6"; fi
 # install json-c
-  - sudo apt-get install build-essential
-  - sudo apt-get install wget
-  - sudo apt-get install libtool
+  - sudo apt-get install -y build-essential
+  - sudo apt-get install -y wget
+  - sudo apt-get install -y libtool
   - git clone -b json-c-0.12 https://github.com/json-c/json-c
   - cd json-c
   - sh autogen.sh
@@ -35,7 +38,7 @@ before_install:
   - cd ..
 
 # -- install leptonica
-  - sudo apt-get install libpng-dev libtiff-dev
+  - sudo apt-get install -y libpng-dev libtiff-dev
   - wget http://www.leptonica.org/source/leptonica-1.71.tar.gz
   - tar -zxvf leptonica-1.71.tar.gz
   - cd leptonica-1.71
@@ -51,6 +54,6 @@ before_install:
   - ./build.sh
   - sudo make install
   - cd ..
-  - sudo apt-get install lcov
+  - sudo apt-get install -y lcov
 script:
   - cmake . -DENABLE_OCR=ON -DSML_HOME=/usr/local/src/libsml/sml && make && make test