Temporary header file '/tmp/WpreogDE97/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
#ifdef __cplusplus
// C17 compat layer
#define _Alignof(type) alignof(type)
#endif
#define getaddrinfo_a(a,b,c,d)

  // add includes
  #include "/usr/include/stdlib.h"
  #include "/usr/include/svt-av1/EbDebugMacros.h"
  #include "/usr/include/svt-av1/EbSvtAv1.h"
  #include "/usr/include/svt-av1/EbSvtAv1Dec.h"
  #include "/usr/include/svt-av1/EbSvtAv1Enc.h"
  #include "/usr/include/svt-av1/EbSvtAv1ErrorCodes.h"
  #include "/usr/include/svt-av1/EbSvtAv1ExtFrameBuf.h"
  #include "/usr/include/svt-av1/EbSvtAv1Formats.h"
  #include "/usr/include/svt-av1/EbSvtAv1Metadata.h"

  // add classes
  EbAV1FrameInfo* tmp_add_class_0;
  EbAV1OperatingPoint* tmp_add_class_1;
  EbAV1StreamInfo* tmp_add_class_2;
  EbBufferHeaderType* tmp_add_class_3;
  EbColorConfig* tmp_add_class_4;
  EbComponentType* tmp_add_class_5;
  EbContentLightLevel* tmp_add_class_6;
  EbExtFrameBuf* tmp_add_class_7;
  EbOperatingParametersInfo* tmp_add_class_8;
  EbPrivDataNode* tmp_add_class_9;
  EbRefFrameScale* tmp_add_class_10;
  EbSvtAv1ChromaPoints* tmp_add_class_11;
  EbSvtAv1DecConfiguration* tmp_add_class_12;
  EbSvtAv1EncConfiguration* tmp_add_class_13;
  EbSvtAv1MasteringDisplayInfo* tmp_add_class_14;
  EbSvtIOFormat* tmp_add_class_15;
  EbTimingInfo* tmp_add_class_16;
  PredictionStructureConfigEntry* tmp_add_class_17;
  SvtAv1FixedBuf* tmp_add_class_18;
  SvtMetadata* tmp_add_class_19;
  SvtMetadataArray* tmp_add_class_20;
  SvtMetadataFrameSize* tmp_add_class_21;
  _G_fpos64_t* tmp_add_class_22;
  _G_fpos_t* tmp_add_class_23;
  _IO_cookie_io_functions_t* tmp_add_class_24;

The GCC parameters:
  gcc -fdump-lang-raw -fkeep-inline-functions -c -x c++ -fpermissive -w "/tmp/WpreogDE97/dump1.h"