CMakeLua/Modules/CheckVariableExists.c

   1 #ifdef CHECK_VARIABLE_EXISTS
   2
   3 extern int CHECK_VARIABLE_EXISTS;
   4
   5 #ifdef __CLASSIC_C__
   6 int main(){
   7   int ac;
   8   char*av[];
   9 #else
  10 int main(int ac, char*av[]){
  11 #endif
  12   if(ac > 1000){return *av[0];}
  13   return CHECK_VARIABLE_EXISTS;
  14 }
  15
  16 #else  /* CHECK_VARIABLE_EXISTS */
  17
  18 #  error "CHECK_VARIABLE_EXISTS has to specify the variable"
  19
  20 #endif /* CHECK_VARIABLE_EXISTS */