Temporary header file '/tmp/Phnq3VTIjY/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/libpng16/png.h"
  #include "/usr/include/libpng16/pngconf.h"
  #include "/usr/include/libpng16/pnglibconf.h"
  #include "/usr/include/png.h"
  #include "/usr/include/pngconf.h"
  #include "/usr/include/pnglibconf.h"

  // add classes
  _G_fpos64_t* tmp_add_class_0;
  _G_fpos_t* tmp_add_class_1;
  _IO_cookie_io_functions_t* tmp_add_class_2;
  png_color_16_struct* tmp_add_class_3;
  png_color_8_struct* tmp_add_class_4;
  png_color_struct* tmp_add_class_5;
  png_row_info_struct* tmp_add_class_6;
  png_sPLT_entry_struct* tmp_add_class_7;
  png_sPLT_struct* tmp_add_class_8;
  png_text_struct* tmp_add_class_9;
  png_time_struct* tmp_add_class_10;
  png_unknown_chunk_t* tmp_add_class_11;

The GCC parameters:
  gcc -fdump-lang-raw -fkeep-inline-functions -c -x c++ -fpermissive -w "/tmp/Phnq3VTIjY/dump1.h"

