Temporary header file '/tmp/3ewYeAIQeP/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
#ifdef __cplusplus
// C17 compat layer
#define _Alignof(type) alignof(type)
#endif
#define getaddrinfo_a(a,b,c,d)

  // add includes
  #include "/usr/include/libhdhomerun/hdhomerun.h"
  #include "/usr/include/libhdhomerun/hdhomerun_channels.h"
  #include "/usr/include/libhdhomerun/hdhomerun_channelscan.h"
  #include "/usr/include/libhdhomerun/hdhomerun_control.h"
  #include "/usr/include/libhdhomerun/hdhomerun_debug.h"
  #include "/usr/include/libhdhomerun/hdhomerun_device.h"
  #include "/usr/include/libhdhomerun/hdhomerun_device_selector.h"
  #include "/usr/include/libhdhomerun/hdhomerun_discover.h"
  #include "/usr/include/libhdhomerun/hdhomerun_os.h"
  #include "/usr/include/libhdhomerun/hdhomerun_os_posix.h"
  #include "/usr/include/libhdhomerun/hdhomerun_pkt.h"
  #include "/usr/include/libhdhomerun/hdhomerun_sock.h"
  #include "/usr/include/libhdhomerun/hdhomerun_types.h"
  #include "/usr/include/libhdhomerun/hdhomerun_video.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;
  cmsghdr* tmp_add_class_4;
  f_owner_ex* tmp_add_class_5;
  file_handle* tmp_add_class_6;
  flock64* tmp_add_class_7;
  gaicb* tmp_add_class_8;
  group_filter* tmp_add_class_9;
  group_req* tmp_add_class_10;
  group_source_req* tmp_add_class_11;
  hdhomerun_channelscan_program_t* tmp_add_class_12;
  hdhomerun_channelscan_result_t* tmp_add_class_13;
  hdhomerun_discover_device_t* tmp_add_class_14;
  hdhomerun_discover_device_v3_t* tmp_add_class_15;
  hdhomerun_local_ip_info_t* tmp_add_class_16;
  hdhomerun_pkt_t* tmp_add_class_17;
  hdhomerun_plotsample_t* tmp_add_class_18;
  hdhomerun_tuner_status_t* tmp_add_class_19;
  hdhomerun_tuner_vstatus_t* tmp_add_class_20;
  hdhomerun_video_stats_t* tmp_add_class_21;
  hostent* tmp_add_class_22;
  in6_addr* tmp_add_class_23;
  in6_pktinfo* tmp_add_class_24;
  in_addr* tmp_add_class_25;
  in_pktinfo* tmp_add_class_26;
  iovec* tmp_add_class_27;
  ip6_mtuinfo* tmp_add_class_28;
  ip_mreq* tmp_add_class_29;
  ip_mreq_source* tmp_add_class_30;
  ip_mreqn* tmp_add_class_31;
  ip_msfilter* tmp_add_class_32;
  ip_opts* tmp_add_class_33;
  ipv6_mreq* tmp_add_class_34;
  itimerval* tmp_add_class_35;
  linger* tmp_add_class_36;
  mmsghdr* tmp_add_class_37;
  msghdr* tmp_add_class_38;
  netent* tmp_add_class_39;
  osockaddr* tmp_add_class_40;
  pollfd* tmp_add_class_41;
  protoent* tmp_add_class_42;
  rpcent* tmp_add_class_43;
  servent* tmp_add_class_44;
  sockaddr* tmp_add_class_45;
  sockaddr_in* tmp_add_class_46;
  sockaddr_in6* tmp_add_class_47;
  sockaddr_storage* tmp_add_class_48;
  statx_timestamp* tmp_add_class_49;
  ucontext_t* tmp_add_class_50;
  ucred* tmp_add_class_51;

The GCC parameters:
  gcc -fdump-lang-raw -fkeep-inline-functions -c -x c++ -fpermissive -w "/tmp/3ewYeAIQeP/dump1.h"