Fix the Travis-CI testing on OS X.

AppleClang 7.3 doesn't get along with CppUnit by default.

diff --git a/.travis.yml b/.travis.yml
index d724ae9dae235f8d024f2c4afddf6af134c607f5..8883648056878232141ce2f440351310bfe92125 100644 (file)
--- a/.travis.yml
+++ b/.travis.yml
@@ -6,6 +6,8 @@ os:
   - linux
   - osx
 
+dist: trusty
+
 compiler:
   - gcc
   - clang
@@ -24,5 +26,4 @@ matrix:
 install:
   - if [ "$TRAVIS_OS_NAME" = "osx" ]; then brew install cppunit; fi
 
-script: cmake -DBUILD_TESTS=ON -DBUILD_EXAMPLES=ON -DBUILD_BINDINGS=ON . && make && make check
-
+script: cmake -DBUILD_TESTS=ON -DBUILD_EXAMPLES=ON -DBUILD_BINDINGS=ON -DCMAKE_CXX_FLAGS="-std=c++11" . && make && make check