Temporary header file '/tmp/68im07Yytr/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/lensfun/lensfun.h"

  // add classes
  lfCallbackData* tmp_add_class_0;
  lfCamera* tmp_add_class_1;
  lfDatabase* tmp_add_class_2;
  lfLens* tmp_add_class_3;
  lfLensCalibCrop* tmp_add_class_4;
  lfLensCalibDistortion* tmp_add_class_5;
  lfLensCalibFov* tmp_add_class_6;
  lfLensCalibRealFocal* tmp_add_class_7;
  lfLensCalibTCA* tmp_add_class_8;
  lfLensCalibVignetting* tmp_add_class_9;
  lfModifier* tmp_add_class_10;
  lfMount* tmp_add_class_11;
  lfParameter* tmp_add_class_12;

The GCC parameters:
  gcc -fdump-lang-raw -fkeep-inline-functions -c -x c++ -fpermissive -w "/tmp/68im07Yytr/dump1.h"