Temporary header file '/tmp/FSqZDIZo8R/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
#define getaddrinfo_a(a,b,c,d)

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

  // add classes
  avifCleanApertureBox* tmp_add_class_0;
  avifCropRect* tmp_add_class_1;
  avifDecoder* tmp_add_class_2;
  avifDiagnostics* tmp_add_class_3;
  avifEncoder* tmp_add_class_4;
  avifExtent* tmp_add_class_5;
  avifIO* tmp_add_class_6;
  avifIOStats* tmp_add_class_7;
  avifImage* tmp_add_class_8;
  avifImageMirror* tmp_add_class_9;
  avifImageRotation* tmp_add_class_10;
  avifImageTiming* tmp_add_class_11;
  avifPixelAspectRatioBox* tmp_add_class_12;
  avifPixelFormatInfo* tmp_add_class_13;
  avifRGBImage* tmp_add_class_14;
  avifROData* tmp_add_class_15;
  avifRWData* tmp_add_class_16;

The GCC parameters:
  gcc -fdump-lang-raw -fkeep-inline-functions -c -x c++ -fpermissive -w "/tmp/FSqZDIZo8R/dump1.h"