Temporary header file '/tmp/yK6vuhavQh/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
#define getaddrinfo_a(a,b,c,d)

  // add includes
  #include "/usr/include/signal/curve.h"
  #include "/usr/include/signal/device_consistency.h"
  #include "/usr/include/signal/fingerprint.h"
  #include "/usr/include/signal/group_cipher.h"
  #include "/usr/include/signal/group_session_builder.h"
  #include "/usr/include/signal/hkdf.h"
  #include "/usr/include/signal/key_helper.h"
  #include "/usr/include/signal/protocol.h"
  #include "/usr/include/signal/ratchet.h"
  #include "/usr/include/signal/sender_key.h"
  #include "/usr/include/signal/sender_key_record.h"
  #include "/usr/include/signal/sender_key_state.h"
  #include "/usr/include/signal/session_builder.h"
  #include "/usr/include/signal/session_cipher.h"
  #include "/usr/include/signal/session_pre_key.h"
  #include "/usr/include/signal/session_record.h"
  #include "/usr/include/signal/session_state.h"
  #include "/usr/include/signal/signal_protocol.h"
  #include "/usr/include/signal/signal_protocol_types.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;
  ratchet_message_keys* tmp_add_class_3;
  signal_crypto_provider* tmp_add_class_4;
  signal_protocol_address* tmp_add_class_5;
  signal_protocol_identity_key_store* tmp_add_class_6;
  signal_protocol_pre_key_store* tmp_add_class_7;
  signal_protocol_sender_key_name* tmp_add_class_8;
  signal_protocol_sender_key_store* tmp_add_class_9;
  signal_protocol_session_store* tmp_add_class_10;
  signal_protocol_signed_pre_key_store* tmp_add_class_11;

The GCC parameters:
  gcc -fdump-lang-raw -fkeep-inline-functions -c -x c++ -fpermissive -w "/tmp/yK6vuhavQh/dump1.h"