Temporary header file '/tmp/YAkBOzCgA5/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/stdlib.h"
  #include "/usr/include/alsa/topology.h"

  // add classes
  snd_tplg_bytes_template* tmp_add_class_0;
  snd_tplg_channel_elem* tmp_add_class_1;
  snd_tplg_channel_map_template* tmp_add_class_2;
  snd_tplg_ctl_template* tmp_add_class_3;
  snd_tplg_dai_template* tmp_add_class_4;
  snd_tplg_enum_template* tmp_add_class_5;
  snd_tplg_graph_elem* tmp_add_class_6;
  snd_tplg_graph_template* tmp_add_class_7;
  snd_tplg_hw_config_template* tmp_add_class_8;
  snd_tplg_io_ops_template* tmp_add_class_9;
  snd_tplg_link_template* tmp_add_class_10;
  snd_tplg_mixer_template* tmp_add_class_11;
  snd_tplg_obj_template* tmp_add_class_12;
  snd_tplg_pcm_template* tmp_add_class_13;
  snd_tplg_pdata_template* tmp_add_class_14;
  snd_tplg_stream_caps_template* tmp_add_class_15;
  snd_tplg_stream_template* tmp_add_class_16;
  snd_tplg_tlv_dbscale_template* tmp_add_class_17;
  snd_tplg_tlv_template* tmp_add_class_18;
  snd_tplg_widget_template* tmp_add_class_19;

The GCC parameters:
  gcc -fdump-lang-raw -fkeep-inline-functions -c -x c++ -fpermissive -w "/tmp/YAkBOzCgA5/dump1.h"