How to use wide string literals in c++ without putting L in front of each one

#ifdef UNICODE
#define TEXT(s) L ## s
#else
#define TEXT(s) s
#endif

#define  get_switch( m )   myclass::getSwitch(L##m)

get_switch(isrunning)

myclass::getswitch(L"isrunning")

error: 'L' was not defined in this scope.

#define  get_switch( m )   myclass::getSwitch(L ## #m)