Temporary header file '/tmp/iv8PnArrnT/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

  // add includes
  #include "/usr/include/usb.h"

  // add classes
  ucontext_t* tmp_add_class_0;
  usb_bus* tmp_add_class_1;
  usb_config_descriptor* tmp_add_class_2;
  usb_ctrl_setup* tmp_add_class_3;
  usb_descriptor_header* tmp_add_class_4;
  usb_device_descriptor* tmp_add_class_5;
  usb_endpoint_descriptor* tmp_add_class_6;
  usb_hid_descriptor* tmp_add_class_7;
  usb_interface* tmp_add_class_8;
  usb_interface_descriptor* tmp_add_class_9;
  usb_string_descriptor* tmp_add_class_10;

The GCC parameters:
  gcc -fdump-lang-raw -fkeep-inline-functions -c -x c++ -fpermissive -w "/tmp/iv8PnArrnT/dump1.h"