added main function in test.cpp and added (commented out line) in CMakeLists.txt

cpp/CMakeLists.txt

@@ -4,3 +4,5 @@ project(CmdLineOptions)
 set(CMAKE_CXX_FLAGS "--std=c++14 -g -Wall")
 add_library(CmdLineOptions_static STATIC CmdLineOptions.cpp)
 add_library(CmdLineOptions SHARED CmdLineOptions.cpp)
+
+#add_executable(CmdLineOptions_test CmdLineOptions_test.cpp)

cpp/CmdLineOptions_test.cpp

@@ -9,4 +9,10 @@
 
 namespace cmdlineoptions {
 
+int main(int argc, char**argv)
+{
+
+    return 0;
+}
+
 } /* namespace cmdlineoptions */