travis compilet g++11 test apart

.travis.yml

@@ -15,7 +15,6 @@ before_install:
 script:
  - mkdir build
  - cd build
- - cmake -DCMAKE_CXX_COMPILER=$BIN_PATH/clang++ -DCMAKE_INSTALL_PREFIX=./ ../
- - cd test
+ - cmake ../test/
  - make
  - ./unittest

test/CMakeLists.txt

@@ -1,4 +1,9 @@
 cmake_minimum_required(VERSION 3.12)
+
+SET(CMAKE_CXX_STANDARD 11)
+SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-narrowing")
+set(CMAKE_VERBOSE_MAKEFILE on)
+
 project(Unittest)
 enable_testing()