Temporary header file '/tmp/_kf93Ugb3b/dump1.h' with the following content will be compiled to create GCC translation unit dump:

  // add defines
  #define __STDC_VERSION__ 201710L
#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/nxml.h"

  // add classes
  CURLMsg* tmp_add_class_0;
  _G_fpos64_t* tmp_add_class_1;
  _G_fpos_t* tmp_add_class_2;
  _IO_cookie_io_functions_t* tmp_add_class_3;
  cmsghdr* tmp_add_class_4;
  curl_blob* tmp_add_class_5;
  curl_certinfo* tmp_add_class_6;
  curl_easyoption* tmp_add_class_7;
  curl_fileinfo* tmp_add_class_8;
  curl_forms* tmp_add_class_9;
  curl_header* tmp_add_class_10;
  curl_hstsentry* tmp_add_class_11;
  curl_httppost* tmp_add_class_12;
  curl_index* tmp_add_class_13;
  curl_khkey* tmp_add_class_14;
  curl_slist* tmp_add_class_15;
  curl_sockaddr* tmp_add_class_16;
  curl_ssl_backend* tmp_add_class_17;
  curl_tlssessioninfo* tmp_add_class_18;
  curl_version_info_data* tmp_add_class_19;
  curl_waitfd* tmp_add_class_20;
  curl_ws_frame* tmp_add_class_21;
  f_owner_ex* tmp_add_class_22;
  file_handle* tmp_add_class_23;
  flock64* tmp_add_class_24;
  iovec* tmp_add_class_25;
  itimerval* tmp_add_class_26;
  linger* tmp_add_class_27;
  mmsghdr* tmp_add_class_28;
  msghdr* tmp_add_class_29;
  nxml_attr_t* tmp_add_class_30;
  nxml_data_t* tmp_add_class_31;
  nxml_doctype_t* tmp_add_class_32;
  nxml_namespace_t* tmp_add_class_33;
  nxml_t* tmp_add_class_34;
  osockaddr* tmp_add_class_35;
  sockaddr* tmp_add_class_36;
  sockaddr_storage* tmp_add_class_37;
  statx_timestamp* tmp_add_class_38;
  ucred* tmp_add_class_39;

The GCC parameters:
  gcc -fdump-lang-raw -fkeep-inline-functions -c -x c++ -fpermissive -w "/tmp/_kf93Ugb3b/dump1.h"