Temporary header file '/tmp/dfBPQUc5pI/dump1.h' with the following content will be compiled to create GCC translation unit dump:

  // add defines
  #define __STDC_VERSION__ 201710L
#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/hd.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;
  ccw_s* tmp_add_class_3;
  cdrom_info_s* tmp_add_class_4;
  devtree_s* tmp_add_class_5;
  driver_info_u* tmp_add_class_6;
  hal_device_s* tmp_add_class_7;
  hal_prop_s* tmp_add_class_8;
  hd_detail_monitor_s* tmp_add_class_9;
  hd_manual_s* tmp_add_class_10;
  hddb_list_s* tmp_add_class_11;
  isdn_parm_s* tmp_add_class_12;
  joystick_s* tmp_add_class_13;
  pmac_mb_def* tmp_add_class_14;
  s_hd_t* tmp_add_class_15;
  s_pci_t* tmp_add_class_16;
  s_ser_device_t* tmp_add_class_17;
  s_serial_t* tmp_add_class_18;
  s_str_list_t* tmp_add_class_19;
  s_sysfsdrv_t* tmp_add_class_20;
  s_udevinfo_t* tmp_add_class_21;
  scsi_s* tmp_add_class_22;
  termios* tmp_add_class_23;
  u_hd_res_t* tmp_add_class_24;
  u_hd_smbios_t* tmp_add_class_25;
  usb_s* tmp_add_class_26;
  vbe_mode_info_s* tmp_add_class_27;

The GCC parameters:
  gcc -fdump-lang-raw -fkeep-inline-functions -c -x c++ -fpermissive -w "/tmp/dfBPQUc5pI/dump1.h"