Temporary header file '/tmp/YPS6Sog3Tu/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
#define getaddrinfo_a(a,b,c,d)

  // add includes
  #include "/usr/include/linux/soundcard.h"

  // add classes
  audio_buf_info* tmp_add_class_0;
  audio_errinfo* tmp_add_class_1;
  buffmem_desc* tmp_add_class_2;
  count_info* tmp_add_class_3;
  midi_info* tmp_add_class_4;
  mixer_info* tmp_add_class_5;
  mixer_vol_table* tmp_add_class_6;
  oss_audioinfo* tmp_add_class_7;
  oss_card_info* tmp_add_class_8;
  oss_digital_control* tmp_add_class_9;
  oss_midi_info* tmp_add_class_10;
  oss_mixer_enuminfo* tmp_add_class_11;
  oss_mixer_value* tmp_add_class_12;
  oss_mixerinfo* tmp_add_class_13;
  oss_mixext* tmp_add_class_14;
  oss_mixext_root* tmp_add_class_15;
  oss_syncgroup* tmp_add_class_16;
  oss_sysinfo* tmp_add_class_17;
  patch_info* tmp_add_class_18;
  remove_sample* tmp_add_class_19;
  sbi_instrument* tmp_add_class_20;
  seq_event_rec* tmp_add_class_21;
  sound_timer_info* tmp_add_class_22;
  synth_control* tmp_add_class_23;
  synth_info* tmp_add_class_24;
  sysex_info* tmp_add_class_25;

The GCC parameters:
  gcc -fdump-lang-raw -fkeep-inline-functions -c -x c++ -fpermissive -w "/tmp/YPS6Sog3Tu/dump1.h"