Temporary header file '/tmp/HmiYT45Llf/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

  // add includes
  #include "/usr/include/miniupnpc/igd_desc_parse.h"
  #include "/usr/include/miniupnpc/miniupnpc.h"
  #include "/usr/include/miniupnpc/miniupnpc_declspec.h"
  #include "/usr/include/miniupnpc/miniupnpctypes.h"
  #include "/usr/include/miniupnpc/miniwget.h"
  #include "/usr/include/miniupnpc/portlistingparse.h"
  #include "/usr/include/miniupnpc/upnpcommands.h"
  #include "/usr/include/miniupnpc/upnpdev.h"
  #include "/usr/include/miniupnpc/upnperrors.h"
  #include "/usr/include/miniupnpc/upnpreplyparse.h"

  // add classes
  IGDdatas* tmp_add_class_0;
  IGDdatas_service* tmp_add_class_1;
  NameValue* tmp_add_class_2;
  NameValueParserData* tmp_add_class_3;
  PortMapping* tmp_add_class_4;
  PortMappingParserData* tmp_add_class_5;
  UPNPDev* tmp_add_class_6;
  UPNPUrls* tmp_add_class_7;
  UPNParg* tmp_add_class_8;

The GCC parameters:
  gcc -fdump-lang-raw -fkeep-inline-functions -c -x c++ -fpermissive -w "/tmp/HmiYT45Llf/dump1.h"