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

  // add includes
  #include "/usr/include/fitsio.h"
  #include "/usr/include/drvrsmem.h"
  #include "/usr/include/fitsio2.h"
  #include "/usr/include/longnam.h"

  // add classes
  DAL_SHM_SEGHEAD_STRUCT* tmp_add_class_0;
  SHARED_GTABstruct* tmp_add_class_1;
  SHARED_LTABstruct* tmp_add_class_2;
  _G_fpos64_t* tmp_add_class_3;
  _G_fpos_t* tmp_add_class_4;
  _IO_cookie_io_functions_t* tmp_add_class_5;
  f_owner_ex* tmp_add_class_6;
  file_handle* tmp_add_class_7;
  flock64* tmp_add_class_8;
  iovec* tmp_add_class_9;
  ipc_perm* tmp_add_class_10;
  sembuf* tmp_add_class_11;
  semid_ds* tmp_add_class_12;
  seminfo* tmp_add_class_13;
  semun* tmp_add_class_14;
  shm_info* tmp_add_class_15;
  shmid_ds* tmp_add_class_16;
  shminfo* tmp_add_class_17;

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