Temporary header file '/tmp/eLoA7Ne26z/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/mrpt/topography/include/mrpt/topography/conversions.h"
  #include "/usr/include/mrpt/topography/include/mrpt/topography/data_types.h"
  #include "/usr/include/mrpt/topography/include/mrpt/topography/path_from_rtk_gps.h"
  #include "/usr/include/mrpt/topography/include/mrpt/topography/registerAllClasses.h"
  #include "/usr/include/mrpt/topography/include/mrpt/topography.h"

  // add namespaces
  namespace Eigen{typedef int tmp_add_type_1;}
  Eigen::tmp_add_type_1 tmp_add_func_1(){return 0;};
  namespace mexplus{typedef int tmp_add_type_2;}
  mexplus::tmp_add_type_2 tmp_add_func_2(){return 0;};
  namespace mrpt{typedef int tmp_add_type_3;}
  mrpt::tmp_add_type_3 tmp_add_func_3(){return 0;};
  namespace mrpt{namespace config{typedef int tmp_add_type_4;}}
  mrpt::config::tmp_add_type_4 tmp_add_func_4(){return 0;};
  namespace mrpt{namespace containers{typedef int tmp_add_type_5;}}
  mrpt::containers::tmp_add_type_5 tmp_add_func_5(){return 0;};
  namespace mrpt{namespace containers{namespace internal{typedef int tmp_add_type_6;}}}
  mrpt::containers::internal::tmp_add_type_6 tmp_add_func_6(){return 0;};
  namespace mrpt{namespace internal{typedef int tmp_add_type_7;}}
  mrpt::internal::tmp_add_type_7 tmp_add_func_7(){return 0;};
  namespace mrpt{namespace literals{typedef int tmp_add_type_8;}}
  mrpt::literals::tmp_add_type_8 tmp_add_func_8(){return 0;};
  namespace mrpt{namespace maps{typedef int tmp_add_type_9;}}
  mrpt::maps::tmp_add_type_9 tmp_add_func_9(){return 0;};
  namespace mrpt{namespace maps{namespace internal{typedef int tmp_add_type_10;}}}
  mrpt::maps::internal::tmp_add_type_10 tmp_add_func_10(){return 0;};
  namespace mrpt{namespace math{typedef int tmp_add_type_11;}}
  mrpt::math::tmp_add_type_11 tmp_add_func_11(){return 0;};
  namespace mrpt{namespace math{namespace internal{typedef int tmp_add_type_12;}}}
  mrpt::math::internal::tmp_add_type_12 tmp_add_func_12(){return 0;};
  namespace mrpt{namespace obs{typedef int tmp_add_type_13;}}
  mrpt::obs::tmp_add_type_13 tmp_add_func_13(){return 0;};
  namespace mrpt{namespace opengl{typedef int tmp_add_type_14;}}
  mrpt::opengl::tmp_add_type_14 tmp_add_func_14(){return 0;};
  namespace mrpt{namespace poses{typedef int tmp_add_type_15;}}
  mrpt::poses::tmp_add_type_15 tmp_add_func_15(){return 0;};
  namespace mrpt{namespace poses{namespace detail{typedef int tmp_add_type_16;}}}
  mrpt::poses::detail::tmp_add_type_16 tmp_add_func_16(){return 0;};
  namespace mrpt{namespace poses{namespace Lie{typedef int tmp_add_type_17;}}}
  mrpt::poses::Lie::tmp_add_type_17 tmp_add_func_17(){return 0;};
  namespace mrpt{namespace rtti{typedef int tmp_add_type_18;}}
  mrpt::rtti::tmp_add_type_18 tmp_add_func_18(){return 0;};
  namespace mrpt{namespace rtti{namespace internal{typedef int tmp_add_type_19;}}}
  mrpt::rtti::internal::tmp_add_type_19 tmp_add_func_19(){return 0;};
  namespace mrpt{namespace serialization{typedef int tmp_add_type_20;}}
  mrpt::serialization::tmp_add_type_20 tmp_add_func_20(){return 0;};
  namespace mrpt{namespace system{typedef int tmp_add_type_21;}}
  mrpt::system::tmp_add_type_21 tmp_add_func_21(){return 0;};
  namespace mrpt{namespace tfest{typedef int tmp_add_type_22;}}
  mrpt::tfest::tmp_add_type_22 tmp_add_func_22(){return 0;};
  namespace mrpt{namespace topography{typedef int tmp_add_type_23;}}
  mrpt::topography::tmp_add_type_23 tmp_add_func_23(){return 0;};
  namespace mrpt{namespace typemeta{typedef int tmp_add_type_24;}}
  mrpt::typemeta::tmp_add_type_24 tmp_add_func_24(){return 0;};
  namespace mrpt{namespace typemeta{namespace detail{typedef int tmp_add_type_25;}}}
  mrpt::typemeta::detail::tmp_add_type_25 tmp_add_func_25(){return 0;};
  namespace mrpt{namespace typemeta{namespace internal{typedef int tmp_add_type_26;}}}
  mrpt::typemeta::internal::tmp_add_type_26 tmp_add_func_26(){return 0;};
  namespace spimpl{typedef int tmp_add_type_27;}
  spimpl::tmp_add_type_27 tmp_add_func_27(){return 0;};
  namespace spimpl{namespace details{typedef int tmp_add_type_28;}}
  spimpl::details::tmp_add_type_28 tmp_add_func_28(){return 0;};
  namespace mrpt{namespace global_settings{typedef int tmp_add_type_29;}}
  mrpt::global_settings::tmp_add_type_29 tmp_add_func_29(){return 0;};

  // add classes
  _G_fpos64_t* tmp_add_class_0;
  _G_fpos_t* tmp_add_class_1;
  _IO_cookie_io_functions_t* tmp_add_class_2;

The GCC parameters:
  gcc -fdump-lang-raw -fkeep-inline-functions -c -x c++ -fpermissive -w "/tmp/eLoA7Ne26z/dump1.h"  -I/usr/include/mrpt/typemeta/include -I/usr/include/mrpt/topography/include -I/usr/include/mrpt/tfest/include -I/usr/include/mrpt/system/include -I/usr/include/mrpt/serialization/include -I/usr/include/mrpt/rtti/include -I/usr/include/mrpt/poses/include -I/usr/include/mrpt/opengl/include -I/usr/include/mrpt/obs/include -I/usr/include/mrpt/math/include -I/usr/include/mrpt/core/include -I/usr/include/mrpt/containers/include -I/usr/include/mrpt/config/include