Temporary header file '/tmp/SiXprSe3wM/dump1.h' with the following content will be compiled to create GCC translation unit dump:

  // add defines
  #define __STDC_VERSION__ 201710L
#define _GXX_NULLPTR_T
#define CLUTTER_ENABLE_COMPOSITOR_API 1
#define _REGEX_NELTS(n)
#define _Atomic
#define PACKED

  // add includes
  #include "/usr/include/avahi-common/address.h"
  #include "/usr/include/avahi-common/alternative.h"
  #include "/usr/include/avahi-common/cdecl.h"
  #include "/usr/include/avahi-common/defs.h"
  #include "/usr/include/avahi-common/domain.h"
  #include "/usr/include/avahi-common/error.h"
  #include "/usr/include/avahi-common/gccmacro.h"
  #include "/usr/include/avahi-common/llist.h"
  #include "/usr/include/avahi-common/malloc.h"
  #include "/usr/include/avahi-common/rlist.h"
  #include "/usr/include/avahi-common/simple-watch.h"
  #include "/usr/include/avahi-common/strlst.h"
  #include "/usr/include/avahi-common/thread-watch.h"
  #include "/usr/include/avahi-common/timeval.h"
  #include "/usr/include/avahi-common/watch.h"

  // add classes
  AvahiAddress* tmp_add_class_0;
  AvahiAllocator* tmp_add_class_1;
  AvahiIPv4Address* tmp_add_class_2;
  AvahiIPv6Address* tmp_add_class_3;
  AvahiPoll* tmp_add_class_4;
  AvahiRList* tmp_add_class_5;
  AvahiStringList* tmp_add_class_6;
  itimerval* tmp_add_class_7;
  pollfd* tmp_add_class_8;

The GCC parameters:
  gcc -fdump-lang-raw -fkeep-inline-functions -c -x c++ -fpermissive -w "/tmp/SiXprSe3wM/dump1.h"