Temporary header file '/tmp/1HleeISCB7/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/rcpputils/rcppmath/clamp.hpp"
  #include "/usr/include/rcpputils/rcppmath/rolling_mean_accumulator.hpp"
  #include "/usr/include/rcpputils/rcpputils/asserts.hpp"
  #include "/usr/include/rcpputils/rcpputils/endian.hpp"
  #include "/usr/include/rcpputils/rcpputils/env.hpp"
  #include "/usr/include/rcpputils/rcpputils/filesystem_helper.hpp"
  #include "/usr/include/rcpputils/rcpputils/find_and_replace.hpp"
  #include "/usr/include/rcpputils/rcpputils/find_library.hpp"
  #include "/usr/include/rcpputils/rcpputils/get_env.hpp"
  #include "/usr/include/rcpputils/rcpputils/join.hpp"
  #include "/usr/include/rcpputils/rcpputils/pointer_traits.hpp"
  #include "/usr/include/rcpputils/rcpputils/process.hpp"
  #include "/usr/include/rcpputils/rcpputils/rolling_mean_accumulator.hpp"
  #include "/usr/include/rcpputils/rcpputils/scope_exit.hpp"
  #include "/usr/include/rcpputils/rcpputils/shared_library.hpp"
  #include "/usr/include/rcpputils/rcpputils/split.hpp"
  #include "/usr/include/rcpputils/rcpputils/thread_safety_annotations.hpp"
  #include "/usr/include/rcpputils/rcpputils/time.hpp"
  #include "/usr/include/rcpputils/rcpputils/visibility_control.hpp"

  // add namespaces
  namespace rcppmath{typedef int tmp_add_type_1;}
  rcppmath::tmp_add_type_1 tmp_add_func_1(){return 0;};
  namespace rcpputils{typedef int tmp_add_type_2;}
  rcpputils::tmp_add_type_2 tmp_add_func_2(){return 0;};
  namespace rcpputils{namespace detail{typedef int tmp_add_type_3;}}
  rcpputils::detail::tmp_add_type_3 tmp_add_func_3(){return 0;};
  namespace rcpputils{namespace details{typedef int tmp_add_type_4;}}
  rcpputils::details::tmp_add_type_4 tmp_add_func_4(){return 0;};
  namespace rcpputils{namespace fs{typedef int tmp_add_type_5;}}
  rcpputils::fs::tmp_add_type_5 tmp_add_func_5(){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;
  rcutils_allocator_s* tmp_add_class_3;
  rcutils_array_list_s* tmp_add_class_4;
  rcutils_char_array_s* tmp_add_class_5;
  rcutils_error_state_s* tmp_add_class_6;
  rcutils_error_string_s* tmp_add_class_7;
  rcutils_hash_map_s* tmp_add_class_8;
  rcutils_shared_library_s* tmp_add_class_9;
  rcutils_string_array_s* tmp_add_class_10;
  rcutils_string_map_s* tmp_add_class_11;
  rcutils_uint8_array_s* tmp_add_class_12;

The GCC parameters:
  gcc -fdump-lang-raw -fkeep-inline-functions -c -x c++ -fpermissive -w "/tmp/1HleeISCB7/dump1.h"  -I/usr/include/rcutils -I/usr/include/rcpputils