Temporary header file '/tmp/vr1SMyqvew/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/dynctrl-logitech.h"
  #include "/usr/include/webcam.h"

  // add classes
  _CControl* tmp_add_class_0;
  _CControlChoice* tmp_add_class_1;
  _CControlRawValue* tmp_add_class_2;
  _CControlValue* tmp_add_class_3;
  _CDevice* tmp_add_class_4;
  _CDynctrlInfo* tmp_add_class_5;
  _CDynctrlInfoListStats* tmp_add_class_6;
  _CDynctrlMessage* tmp_add_class_7;
  _CEvent* tmp_add_class_8;
  _CFrameInterval* tmp_add_class_9;
  _CFrameSize* tmp_add_class_10;
  _CPixelFormat* tmp_add_class_11;
  _CUSBInfo* tmp_add_class_12;
  _CVersionNumber* tmp_add_class_13;

The GCC parameters:
  gcc -fdump-lang-raw -fkeep-inline-functions -c -x c++ -fpermissive -w "/tmp/vr1SMyqvew/dump1.h"