Temporary header file '/tmp/Xycb4tI0C3/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

  // add includes
  #include "/usr/include/json-c/arraylist.h"
  #include "/usr/include/json-c/debug.h"
  #include "/usr/include/json-c/json.h"
  #include "/usr/include/json-c/json_c_version.h"
  #include "/usr/include/json-c/json_config.h"
  #include "/usr/include/json-c/json_inttypes.h"
  #include "/usr/include/json-c/json_object.h"
  #include "/usr/include/json-c/json_object_iterator.h"
  #include "/usr/include/json-c/json_pointer.h"
  #include "/usr/include/json-c/json_tokener.h"
  #include "/usr/include/json-c/json_types.h"
  #include "/usr/include/json-c/json_util.h"
  #include "/usr/include/json-c/json_visit.h"
  #include "/usr/include/json-c/linkhash.h"
  #include "/usr/include/json-c/printbuf.h"

  // add classes
  array_list* tmp_add_class_0;
  json_object_iter* tmp_add_class_1;
  json_object_iterator* tmp_add_class_2;
  json_tokener* tmp_add_class_3;
  json_tokener_srec* tmp_add_class_4;
  lh_entry* tmp_add_class_5;
  lh_table* tmp_add_class_6;
  printbuf* tmp_add_class_7;

The GCC parameters:
  gcc -fdump-lang-raw -fkeep-inline-functions -c -x c++ -fpermissive -w "/tmp/Xycb4tI0C3/dump1.h"