Temporary header file '/tmp/tplfuiA4BJ/dump1.h' with the following content will be compiled to create GCC translation unit dump:

  // add defines
  #define __STDC_VERSION__ 201710L
#define _TIME_BITS 64
#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/scsi/sg_cmds.h"
  #include "/usr/include/scsi/sg_cmds_basic.h"
  #include "/usr/include/scsi/sg_cmds_extra.h"
  #include "/usr/include/scsi/sg_cmds_mmc.h"
  #include "/usr/include/scsi/sg_io_linux.h"
  #include "/usr/include/scsi/sg_lib.h"
  #include "/usr/include/scsi/sg_lib_data.h"
  #include "/usr/include/scsi/sg_linux_inc.h"
  #include "/usr/include/scsi/sg_pr2serr.h"
  #include "/usr/include/scsi/sg_pt.h"
  #include "/usr/include/scsi/sg_pt_linux.h"
  #include "/usr/include/scsi/sg_pt_nvme.h"
  #include "/usr/include/scsi/sg_unaligned.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;
  ccs_modesel_head* tmp_add_class_3;
  sg_cmd_response_t* tmp_add_class_4;
  sg_header* tmp_add_class_5;
  sg_io_hdr* tmp_add_class_6;
  sg_io_v4* tmp_add_class_7;
  sg_iovec* tmp_add_class_8;
  sg_lib_4tuple_u8* tmp_add_class_9;
  sg_lib_asc_ascq_range_t* tmp_add_class_10;
  sg_lib_asc_ascq_t* tmp_add_class_11;
  sg_lib_simple_value_name_t* tmp_add_class_12;
  sg_lib_value_name_t* tmp_add_class_13;
  sg_nvme_passthru_cmd* tmp_add_class_14;
  sg_nvme_user_io* tmp_add_class_15;
  sg_opcode_info_t* tmp_add_class_16;
  sg_pt_base* tmp_add_class_17;
  sg_pt_linux_scsi* tmp_add_class_18;
  sg_req_info* tmp_add_class_19;
  sg_scsi_id* tmp_add_class_20;
  sg_scsi_sense_hdr* tmp_add_class_21;
  sg_simple_inquiry_resp* tmp_add_class_22;
  sg_sntl_dev_state_t* tmp_add_class_23;
  sg_sntl_result_t* tmp_add_class_24;
  sg_value_2names_t* tmp_add_class_25;

The GCC parameters:
  gcc -fdump-lang-raw -fkeep-inline-functions -c -x c++ -fpermissive -w "/tmp/tplfuiA4BJ/dump1.h"