cmake/Modules/CMakeCXXCompilerABI.cpp

#ifndef __cplusplus
#  error "A C compiler has been selected for C++."
#endif

#include "CMakeCompilerABI.h"

int main(int argc, char* argv[])
{
  int require = 0;
  require += info_sizeof_dptr[argc];
  require += info_byte_order_big_endian[argc];
  require += info_byte_order_little_endian[argc];
#if defined(ABI_ID)
  require += info_abi[argc];
#endif
  (void)argv;
  return require;
}