Add c++11 build to the Travis matrix.

.travis.yml

@@ -38,6 +38,7 @@ env:
   matrix:
     - GTEST_TARGET=googletest SHARED_LIB=OFF STATIC_LIB=ON CMAKE_PKG=OFF BUILD_TYPE=debug   VERBOSE_MAKE=true VERBOSE
     - GTEST_TARGET=googlemock SHARED_LIB=OFF STATIC_LIB=ON CMAKE_PKG=OFF BUILD_TYPE=debug   VERBOSE_MAKE=true VERBOSE
+    - GTEST_TARGET=googlemock SHARED_LIB=OFF STATIC_LIB=ON CMAKE_PKG=OFF BUILD_TYPE=debug CXX_FLAGS=-std=c++11  VERBOSE_MAKE=true VERBOSE
 #    - GTEST_TARGET=googletest SHARED_LIB=ON  STATIC_LIB=ON CMAKE_PKG=ON  BUILD_TYPE=release VERBOSE_MAKE=false
 #    - GTEST_TARGET=googlemock SHARED_LIB=ON  STATIC_LIB=ON CMAKE_PKG=ON  BUILD_TYPE=release VERBOSE_MAKE=false
 notifications:

travis.sh

@@ -9,6 +9,7 @@ cmake -Dgtest_build_samples=ON \
       -Dgmock_build_samples=ON \
       -Dgtest_build_tests=ON \
       -Dgmock_build_tests=ON \
+      -DCMAKE_CXX_FLAGS=$CXX_FLAGS \
       ../../$GTEST_TARGET
 make
 make test