Add c++11 build to the Travis matrix.
diff --git a/.travis.yml b/.travis.yml
index cd3485c..9000264 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -38,6 +38,7 @@
   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:
diff --git a/travis.sh b/travis.sh
index 6d381e9..20fe3e3 100755
--- a/travis.sh
+++ b/travis.sh
@@ -9,6 +9,7 @@
       -Dgmock_build_samples=ON \
       -Dgtest_build_tests=ON \
       -Dgmock_build_tests=ON \
+      -DCMAKE_CXX_FLAGS=$CXX_FLAGS \
       ../../$GTEST_TARGET
 make
 make test