Temporary header file '/tmp/INIuLxm8Sl/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
#define getaddrinfo_a(a,b,c,d)

  // add includes
  #include "/usr/include/ev++.h"
  #include "/usr/include/ev.h"

  // add namespaces
  namespace ev{typedef int tmp_add_type_1;}
  ev::tmp_add_type_1 tmp_add_func_1(){return 0;};

  // 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;
  ev_any_watcher* tmp_add_class_3;
  ev_async* tmp_add_class_4;
  ev_check* tmp_add_class_5;
  ev_child* tmp_add_class_6;
  ev_cleanup* tmp_add_class_7;
  ev_embed* tmp_add_class_8;
  ev_fork* tmp_add_class_9;
  ev_idle* tmp_add_class_10;
  ev_io* tmp_add_class_11;
  ev_periodic* tmp_add_class_12;
  ev_prepare* tmp_add_class_13;
  ev_signal* tmp_add_class_14;
  ev_stat* tmp_add_class_15;
  ev_timer* tmp_add_class_16;
  ev_watcher* tmp_add_class_17;
  ev_watcher_list* tmp_add_class_18;
  ev_watcher_time* tmp_add_class_19;
  statx_timestamp* tmp_add_class_20;
  ucontext_t* tmp_add_class_21;

The GCC parameters:
  gcc -fdump-lang-raw -fkeep-inline-functions -c -x c++ -fpermissive -w "/tmp/INIuLxm8Sl/dump1.h"