Temporary header file '/tmp/enCI4g2tWR/dump1.h' with the following content will be compiled to create GCC translation unit dump:

  // add defines
  #define __STDC_VERSION__ 201710L
#define _TIME_BITS 64
#define _FILE_OFFSET_BITS 64
#define _GXX_NULLPTR_T
#define CLUTTER_ENABLE_COMPOSITOR_API 1
#define _REGEX_NELTS(n)
#define _Atomic
#define PACKED
#define getaddrinfo_a(a,b,c,d)

  // add includes
  #include "/usr/include/CivetServer.h"
  #include "/usr/include/civetweb.h"

  // add classes
  CivetAuthHandler* tmp_add_class_0;
  CivetCallbacks* tmp_add_class_1;
  CivetException* tmp_add_class_2;
  CivetHandler* tmp_add_class_3;
  CivetServer* tmp_add_class_4;
  CivetWebSocketHandler* tmp_add_class_5;
  _G_fpos64_t* tmp_add_class_6;
  _G_fpos_t* tmp_add_class_7;
  _IO_cookie_io_functions_t* tmp_add_class_8;
  mg_callbacks* tmp_add_class_9;
  mg_client_cert* tmp_add_class_10;
  mg_client_options* tmp_add_class_11;
  mg_error_data* tmp_add_class_12;
  mg_form_data_handler* tmp_add_class_13;
  mg_header* tmp_add_class_14;
  mg_init_data* tmp_add_class_15;
  mg_option* tmp_add_class_16;
  mg_request_info* tmp_add_class_17;
  mg_response_info* tmp_add_class_18;
  mg_server_port* tmp_add_class_19;
  mg_websocket_subprotocols* tmp_add_class_20;

The GCC parameters:
  gcc -fdump-lang-raw -fkeep-inline-functions -c -x c++ -fpermissive -w "/tmp/enCI4g2tWR/dump1.h"