text: //===----------------------------------------------------------------------===//
  //
  //                     The LLVM Compiler Infrastructure
  //
  // This file is dual licensed under the MIT and the University of Illinois Open
  // Source Licenses. See LICENSE.TXT for details.
  //
  //===----------------------------------------------------------------------===//
  
  // <csignal>
  
  #include <csignal>
  
  #ifndef _LIBCPP_VERSION
  #error _LIBCPP_VERSION not defined
  #endif
  
  int main()
  {
  }
  