Temporary header file '/tmp/9QgOomPYW0/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
#ifdef __cplusplus
// C17 compat layer
#define _Alignof(type) alignof(type)
#endif
#define getaddrinfo_a(a,b,c,d)

  // add includes
  #include "/usr/include/dart/utils/urdf/BackwardCompatibility.hpp"
  #include "/usr/include/dart/utils/urdf/DartLoader.hpp"
  #include "/usr/include/dart/utils/urdf/URDFTypes.hpp"
  #include "/usr/include/dart/utils/urdf/urdf.hpp"
  #include "/usr/include/dart/utils/urdf/urdf_world_parser.hpp"

  // add namespaces
  namespace dart{typedef int tmp_add_type_1;}
  dart::tmp_add_type_1 tmp_add_func_1(){return 0;};
  namespace dart{namespace collision{typedef int tmp_add_type_2;}}
  dart::collision::tmp_add_type_2 tmp_add_func_2(){return 0;};
  namespace dart{namespace Color{typedef int tmp_add_type_3;}}
  dart::Color::tmp_add_type_3 tmp_add_func_3(){return 0;};
  namespace dart{namespace common{typedef int tmp_add_type_4;}}
  dart::common::tmp_add_type_4 tmp_add_func_4(){return 0;};
  namespace dart{namespace common{namespace detail{typedef int tmp_add_type_5;}}}
  dart::common::detail::tmp_add_type_5 tmp_add_func_5(){return 0;};
  namespace dart{namespace common{namespace signal{typedef int tmp_add_type_6;}}}
  dart::common::signal::tmp_add_type_6 tmp_add_func_6(){return 0;};
  namespace dart{namespace common{namespace signal{namespace detail{typedef int tmp_add_type_7;}}}}
  dart::common::signal::detail::tmp_add_type_7 tmp_add_func_7(){return 0;};
  namespace dart{namespace constraint{typedef int tmp_add_type_8;}}
  dart::constraint::tmp_add_type_8 tmp_add_func_8(){return 0;};
  namespace dart{namespace dynamics{typedef int tmp_add_type_9;}}
  dart::dynamics::tmp_add_type_9 tmp_add_func_9(){return 0;};
  namespace dart{namespace dynamics{namespace detail{typedef int tmp_add_type_10;}}}
  dart::dynamics::detail::tmp_add_type_10 tmp_add_func_10(){return 0;};
  namespace dart{namespace integration{typedef int tmp_add_type_11;}}
  dart::integration::tmp_add_type_11 tmp_add_func_11(){return 0;};
  namespace dart{namespace math{typedef int tmp_add_type_12;}}
  dart::math::tmp_add_type_12 tmp_add_func_12(){return 0;};
  namespace dart{namespace math{namespace detail{typedef int tmp_add_type_13;}}}
  dart::math::detail::tmp_add_type_13 tmp_add_func_13(){return 0;};
  namespace dart{namespace math{namespace suffixes{typedef int tmp_add_type_14;}}}
  dart::math::suffixes::tmp_add_type_14 tmp_add_func_14(){return 0;};
  namespace dart{namespace optimizer{typedef int tmp_add_type_15;}}
  dart::optimizer::tmp_add_type_15 tmp_add_func_15(){return 0;};
  namespace dart{namespace simulation{typedef int tmp_add_type_16;}}
  dart::simulation::tmp_add_type_16 tmp_add_func_16(){return 0;};
  namespace dart{namespace utils{typedef int tmp_add_type_17;}}
  dart::utils::tmp_add_type_17 tmp_add_func_17(){return 0;};
  namespace Eigen{typedef int tmp_add_type_18;}
  Eigen::tmp_add_type_18 tmp_add_func_18(){return 0;};
  namespace Eigen{namespace Architecture{typedef int tmp_add_type_19;}}
  Eigen::Architecture::tmp_add_type_19 tmp_add_func_19(){return 0;};
  namespace Eigen{namespace indexing{typedef int tmp_add_type_20;}}
  Eigen::indexing::tmp_add_type_20 tmp_add_func_20(){return 0;};
  namespace Eigen{namespace internal{typedef int tmp_add_type_21;}}
  Eigen::internal::tmp_add_type_21 tmp_add_func_21(){return 0;};
  namespace Eigen{namespace numext{typedef int tmp_add_type_22;}}
  Eigen::numext::tmp_add_type_22 tmp_add_func_22(){return 0;};
  namespace Eigen{namespace placeholders{typedef int tmp_add_type_23;}}
  Eigen::placeholders::tmp_add_type_23 tmp_add_func_23(){return 0;};
  namespace Eigen{namespace symbolic{typedef int tmp_add_type_24;}}
  Eigen::symbolic::tmp_add_type_24 tmp_add_func_24(){return 0;};
  namespace urdf{typedef int tmp_add_type_25;}
  urdf::tmp_add_type_25 tmp_add_func_25(){return 0;};
  namespace dart{namespace utils{namespace urdf_parsing{typedef int tmp_add_type_26;}}}
  dart::utils::urdf_parsing::tmp_add_type_26 tmp_add_func_26(){return 0;};
  namespace Eigen{namespace bfloat16_impl{typedef int tmp_add_type_27;}}
  Eigen::bfloat16_impl::tmp_add_type_27 tmp_add_func_27(){return 0;};
  namespace Eigen{namespace half_impl{typedef int tmp_add_type_28;}}
  Eigen::half_impl::tmp_add_type_28 tmp_add_func_28(){return 0;};
  namespace Eigen{namespace internal{namespace std_fallback{typedef int tmp_add_type_29;}}}
  Eigen::internal::std_fallback::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;
  _ch_vertex* tmp_add_class_3;
  float_w_idx* tmp_add_class_4;
  int_w_idx* tmp_add_class_5;
  itimerval* tmp_add_class_6;

The GCC parameters:
  gcc -fdump-lang-raw -fkeep-inline-functions -c -x c++ -fpermissive -w "/tmp/9QgOomPYW0/dump1.h"  -I/usr/include/eigen3 -I/usr/include/eigen3/Eigen/src/Core/arch/HIP/hcc

