Temporary header file '/tmp/fG_I02tWTP/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
#define getaddrinfo_a(a,b,c,d)

  // add includes
  #include "/usr/include/oscpack/ip/IpEndpointName.h"
  #include "/usr/include/oscpack/ip/NetworkingUtils.h"
  #include "/usr/include/oscpack/ip/PacketListener.h"
  #include "/usr/include/oscpack/ip/TimerListener.h"
  #include "/usr/include/oscpack/ip/UdpSocket.h"
  #include "/usr/include/oscpack/osc/MessageMappingOscPacketListener.h"
  #include "/usr/include/oscpack/osc/OscException.h"
  #include "/usr/include/oscpack/osc/OscHostEndianness.h"
  #include "/usr/include/oscpack/osc/OscOutboundPacketStream.h"
  #include "/usr/include/oscpack/osc/OscPacketListener.h"
  #include "/usr/include/oscpack/osc/OscPrintReceivedElements.h"
  #include "/usr/include/oscpack/osc/OscReceivedElements.h"
  #include "/usr/include/oscpack/osc/OscTypes.h"

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

  // add classes
  IpEndpointName* tmp_add_class_0;
  NetworkInitializer* tmp_add_class_1;
  PacketListener* tmp_add_class_2;
  SocketReceiveMultiplexer* tmp_add_class_3;
  TimerListener* tmp_add_class_4;
  UdpListeningReceiveSocket* tmp_add_class_5;
  UdpReceiveSocket* tmp_add_class_6;
  UdpSocket* tmp_add_class_7;
  UdpTransmitSocket* tmp_add_class_8;

The GCC parameters:
  gcc -fdump-lang-raw -fkeep-inline-functions -c -x c++ -fpermissive -w "/tmp/fG_I02tWTP/dump1.h"