update Travis CI settings to use more modern compilers, put back Boost system library: test programs link against it

Author: mamoll

.travis.yml

@@ -1,3 +1,8 @@
+sudo: required
+dist: trusty
+cache:
+  apt: true
+
 language: cpp
 
 os:
@@ -17,6 +22,12 @@ matrix:
     - os: osx
       compiler: gcc
 
+addons:
+  apt:
+    packages:
+      - libflann-dev
+      - libboost-all-dev
+
 install:
   # Install dependencies for FCL
   - if [ "$TRAVIS_OS_NAME" = "linux" ]; then 'ci/install_linux.sh' ; fi

CMakeLists.txt

@@ -104,7 +104,7 @@ endif()
 # endif()
 
 
-find_package(Boost COMPONENTS date_time filesystem unit_test_framework REQUIRED)
+find_package(Boost COMPONENTS date_time filesystem system unit_test_framework REQUIRED)
 include_directories(${Boost_INCLUDE_DIR})
 
 if(MSVC)

ci/install_linux.sh

@@ -1,18 +1,8 @@
 sudo add-apt-repository --yes ppa:libccd-debs/ppa
 sudo apt-get -qq update
 
-########################
-# Mendatory dependencies
-########################
-sudo apt-get -qq --yes --force-yes install cmake
-sudo apt-get -qq --yes --force-yes install libboost-all-dev
 sudo apt-get -qq --yes --force-yes install libccd-dev
 
-########################
-# Optional dependencies
-########################
-sudo apt-get -qq --yes --force-yes install libflann-dev
-
 # Octomap
 git clone https://github.com/OctoMap/octomap
 cd octomap