Temporary header file '/tmp/XxfAdULnHS/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/opencv4/opencv2/dnn/all_layers.hpp"
  #include "/usr/include/opencv4/opencv2/dnn/dict.hpp"
  #include "/usr/include/opencv4/opencv2/dnn/dnn.hpp"
  #include "/usr/include/opencv4/opencv2/dnn/dnn.inl.hpp"
  #include "/usr/include/opencv4/opencv2/dnn/layer.details.hpp"
  #include "/usr/include/opencv4/opencv2/dnn/layer.hpp"
  #include "/usr/include/opencv4/opencv2/dnn/shape_utils.hpp"
  #include "/usr/include/opencv4/opencv2/dnn/utils/debug_utils.hpp"
  #include "/usr/include/opencv4/opencv2/dnn/utils/inference_engine.hpp"
  #include "/usr/include/opencv4/opencv2/dnn/version.hpp"
  #include "/usr/include/opencv4/opencv2/dnn.hpp"

  // add namespaces
  namespace cv{typedef int tmp_add_type_1;}
  cv::tmp_add_type_1 tmp_add_func_1(){return 0;};
  namespace cv{namespace cuda{typedef int tmp_add_type_2;}}
  cv::cuda::tmp_add_type_2 tmp_add_func_2(){return 0;};
  namespace cv{namespace cudev{typedef int tmp_add_type_3;}}
  cv::cudev::tmp_add_type_3 tmp_add_func_3(){return 0;};
  namespace cv{namespace detail{typedef int tmp_add_type_4;}}
  cv::detail::tmp_add_type_4 tmp_add_func_4(){return 0;};
  namespace cv{namespace details{typedef int tmp_add_type_5;}}
  cv::details::tmp_add_type_5 tmp_add_func_5(){return 0;};
  namespace cv{namespace dnn{typedef int tmp_add_type_6;}}
  cv::dnn::tmp_add_type_6 tmp_add_func_6(){return 0;};
  namespace cv{namespace Error{typedef int tmp_add_type_7;}}
  cv::Error::tmp_add_type_7 tmp_add_func_7(){return 0;};
  namespace cv{namespace internal{typedef int tmp_add_type_8;}}
  cv::internal::tmp_add_type_8 tmp_add_func_8(){return 0;};
  namespace cv{namespace ipp{typedef int tmp_add_type_9;}}
  cv::ipp::tmp_add_type_9 tmp_add_func_9(){return 0;};
  namespace cv{namespace ogl{typedef int tmp_add_type_10;}}
  cv::ogl::tmp_add_type_10 tmp_add_func_10(){return 0;};
  namespace cv{namespace samples{typedef int tmp_add_type_11;}}
  cv::samples::tmp_add_type_11 tmp_add_func_11(){return 0;};
  namespace cv{namespace sfinae{typedef int tmp_add_type_12;}}
  cv::sfinae::tmp_add_type_12 tmp_add_func_12(){return 0;};
  namespace cv{namespace traits{typedef int tmp_add_type_13;}}
  cv::traits::tmp_add_type_13 tmp_add_func_13(){return 0;};
  namespace cv{namespace traits{namespace internal{typedef int tmp_add_type_14;}}}
  cv::traits::internal::tmp_add_type_14 tmp_add_func_14(){return 0;};
  namespace cv{namespace utils{typedef int tmp_add_type_15;}}
  cv::utils::tmp_add_type_15 tmp_add_func_15(){return 0;};
  namespace cv{namespace dnn{namespace dnn4_v20220524{typedef int tmp_add_type_16;}}}
  cv::dnn::dnn4_v20220524::tmp_add_type_16 tmp_add_func_16(){return 0;};
  namespace cv{namespace dnn{namespace dnn4_v20220524{namespace __anonb7dec80da811{typedef int tmp_add_type_17;}}}}
  cv::dnn::dnn4_v20220524::__anonb7dec80da811::tmp_add_type_17 tmp_add_func_17(){return 0;};
  namespace cv{namespace dnn{namespace dnn4_v20220524{namespace details{typedef int tmp_add_type_18;}}}}
  cv::dnn::dnn4_v20220524::details::tmp_add_type_18 tmp_add_func_18(){return 0;};

  // add classes
  Cv16suf* tmp_add_class_0;
  Cv32suf* tmp_add_class_1;
  Cv64suf* tmp_add_class_2;
  CvBox2D* tmp_add_class_3;
  CvChain* tmp_add_class_4;
  CvContour* tmp_add_class_5;
  CvGraph* tmp_add_class_6;
  CvGraphEdge* tmp_add_class_7;
  CvGraphVtx* tmp_add_class_8;
  CvGraphVtx2D* tmp_add_class_9;
  CvHistogram* tmp_add_class_10;
  CvLineIterator* tmp_add_class_11;
  CvMat* tmp_add_class_12;
  CvMatND* tmp_add_class_13;
  CvMemBlock* tmp_add_class_14;
  CvMemStorage* tmp_add_class_15;
  CvMemStoragePos* tmp_add_class_16;
  CvPoint* tmp_add_class_17;
  CvPoint2D32f* tmp_add_class_18;
  CvPoint2D64f* tmp_add_class_19;
  CvPoint3D32f* tmp_add_class_20;
  CvPoint3D64f* tmp_add_class_21;
  CvRect* tmp_add_class_22;
  CvScalar* tmp_add_class_23;
  CvSeq* tmp_add_class_24;
  CvSeqBlock* tmp_add_class_25;
  CvSeqReader* tmp_add_class_26;
  CvSeqWriter* tmp_add_class_27;
  CvSet* tmp_add_class_28;
  CvSetElem* tmp_add_class_29;
  CvSize* tmp_add_class_30;
  CvSize2D32f* tmp_add_class_31;
  CvSlice* tmp_add_class_32;
  CvSparseMat* tmp_add_class_33;
  CvSparseMatIterator* tmp_add_class_34;
  CvSparseNode* tmp_add_class_35;
  CvTermCriteria* tmp_add_class_36;
  _G_fpos64_t* tmp_add_class_37;
  _G_fpos_t* tmp_add_class_38;
  _IO_cookie_io_functions_t* tmp_add_class_39;
  _IplConvKernel* tmp_add_class_40;
  _IplConvKernelFP* tmp_add_class_41;
  _IplImage* tmp_add_class_42;
  _IplROI* tmp_add_class_43;

The GCC parameters:
  gcc -fdump-lang-raw -fkeep-inline-functions -c -x c++ -fpermissive -w "/tmp/XxfAdULnHS/dump1.h"  -I/usr/include/opencv4 -I/usr/include/arm-linux-gnueabihf/opencv4/opencv2