Temporary header file '/tmp/WswLIpDnz8/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

  // add includes
  #include "/usr/include/evdns.h"
  #include "/usr/include/event.h"
  #include "/usr/include/event2/buffer.h"
  #include "/usr/include/event2/buffer_compat.h"
  #include "/usr/include/event2/bufferevent.h"
  #include "/usr/include/event2/bufferevent_compat.h"
  #include "/usr/include/event2/bufferevent_ssl.h"
  #include "/usr/include/event2/bufferevent_struct.h"
  #include "/usr/include/event2/dns.h"
  #include "/usr/include/event2/dns_compat.h"
  #include "/usr/include/event2/dns_struct.h"
  #include "/usr/include/event2/event-config.h"
  #include "/usr/include/event2/event.h"
  #include "/usr/include/event2/event_compat.h"
  #include "/usr/include/event2/event_struct.h"
  #include "/usr/include/event2/http.h"
  #include "/usr/include/event2/http_compat.h"
  #include "/usr/include/event2/http_struct.h"
  #include "/usr/include/event2/keyvalq_struct.h"
  #include "/usr/include/event2/listener.h"
  #include "/usr/include/event2/rpc.h"
  #include "/usr/include/event2/rpc_compat.h"
  #include "/usr/include/event2/rpc_struct.h"
  #include "/usr/include/event2/tag.h"
  #include "/usr/include/event2/tag_compat.h"
  #include "/usr/include/event2/thread.h"
  #include "/usr/include/event2/util.h"
  #include "/usr/include/event2/visibility.h"
  #include "/usr/include/evhttp.h"
  #include "/usr/include/evrpc.h"
  #include "/usr/include/evutil.h"

  // add classes
  _G_fpos64_t* tmp_add_class_0;
  _G_fpos_t* tmp_add_class_1;
  _IO_cookie_io_functions_t* tmp_add_class_2;
  addrinfo* tmp_add_class_3;
  bufferevent* tmp_add_class_4;
  cmsghdr* tmp_add_class_5;
  evbuffer_cb_info* tmp_add_class_6;
  evbuffer_ptr* tmp_add_class_7;
  evdns_server_question* tmp_add_class_8;
  evdns_server_request* tmp_add_class_9;
  event* tmp_add_class_10;
  event_callback* tmp_add_class_11;
  event_dlist* tmp_add_class_12;
  event_list* tmp_add_class_13;
  event_watermark* tmp_add_class_14;
  evhttp_request* tmp_add_class_15;
  evkeyval* tmp_add_class_16;
  evkeyvalq* tmp_add_class_17;
  evrpc* tmp_add_class_18;
  evrpc_status* tmp_add_class_19;
  evthread_condition_callbacks* tmp_add_class_20;
  evthread_lock_callbacks* tmp_add_class_21;
  gaicb* tmp_add_class_22;
  group_filter* tmp_add_class_23;
  group_req* tmp_add_class_24;
  group_source_req* tmp_add_class_25;
  hostent* tmp_add_class_26;
  in6_addr* tmp_add_class_27;
  in6_pktinfo* tmp_add_class_28;
  in_addr* tmp_add_class_29;
  in_pktinfo* tmp_add_class_30;
  iovec* tmp_add_class_31;
  ip6_mtuinfo* tmp_add_class_32;
  ip_mreq* tmp_add_class_33;
  ip_mreq_source* tmp_add_class_34;
  ip_mreqn* tmp_add_class_35;
  ip_msfilter* tmp_add_class_36;
  ip_opts* tmp_add_class_37;
  ipv6_mreq* tmp_add_class_38;
  itimerval* tmp_add_class_39;
  linger* tmp_add_class_40;
  mmsghdr* tmp_add_class_41;
  msghdr* tmp_add_class_42;
  netent* tmp_add_class_43;
  osockaddr* tmp_add_class_44;
  protoent* tmp_add_class_45;
  rpcent* tmp_add_class_46;
  servent* tmp_add_class_47;
  sockaddr* tmp_add_class_48;
  sockaddr_in* tmp_add_class_49;
  sockaddr_in6* tmp_add_class_50;
  sockaddr_storage* tmp_add_class_51;
  ucred* tmp_add_class_52;

The GCC parameters:
  gcc -fdump-lang-raw -fkeep-inline-functions -c -x c++ -fpermissive -w "/tmp/WswLIpDnz8/dump1.h"  -I/usr/include/event2