Temporary header file '/tmp/7Yll1WDakR/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
#ifdef __cplusplus
// C17 compat layer
#define _Alignof(type) alignof(type)
#endif
#define getaddrinfo_a(a,b,c,d)

  // add includes
  #include "/usr/include/nop/base/array.h"
  #include "/usr/include/nop/base/encoding.h"
  #include "/usr/include/nop/base/encoding_byte.h"
  #include "/usr/include/nop/base/enum.h"
  #include "/usr/include/nop/base/handle.h"
  #include "/usr/include/nop/base/logical_buffer.h"
  #include "/usr/include/nop/base/macros.h"
  #include "/usr/include/nop/base/map.h"
  #include "/usr/include/nop/base/members.h"
  #include "/usr/include/nop/base/optional.h"
  #include "/usr/include/nop/base/pair.h"
  #include "/usr/include/nop/base/reference_wrapper.h"
  #include "/usr/include/nop/base/result.h"
  #include "/usr/include/nop/base/serializer.h"
  #include "/usr/include/nop/base/string.h"
  #include "/usr/include/nop/base/table.h"
  #include "/usr/include/nop/base/tuple.h"
  #include "/usr/include/nop/base/utility.h"
  #include "/usr/include/nop/base/value.h"
  #include "/usr/include/nop/base/variant.h"
  #include "/usr/include/nop/base/vector.h"
  #include "/usr/include/nop/protocol.h"
  #include "/usr/include/nop/rpc/interface.h"
  #include "/usr/include/nop/rpc/simple_method_receiver.h"
  #include "/usr/include/nop/rpc/simple_method_sender.h"
  #include "/usr/include/nop/serializer.h"
  #include "/usr/include/nop/status.h"
  #include "/usr/include/nop/structure.h"
  #include "/usr/include/nop/table.h"
  #include "/usr/include/nop/traits/function_traits.h"
  #include "/usr/include/nop/traits/is_comparable.h"
  #include "/usr/include/nop/traits/is_detected.h"
  #include "/usr/include/nop/traits/is_fungible.h"
  #include "/usr/include/nop/traits/is_template_base_of.h"
  #include "/usr/include/nop/traits/void.h"
  #include "/usr/include/nop/types/detail/logical_buffer.h"
  #include "/usr/include/nop/types/detail/member_pointer.h"
  #include "/usr/include/nop/types/detail/variant.h"
  #include "/usr/include/nop/types/enum_flags.h"
  #include "/usr/include/nop/types/file_handle.h"
  #include "/usr/include/nop/types/handle.h"
  #include "/usr/include/nop/types/optional.h"
  #include "/usr/include/nop/types/result.h"
  #include "/usr/include/nop/types/thread_local.h"
  #include "/usr/include/nop/types/variant.h"
  #include "/usr/include/nop/utility/backtrace.h"
  #include "/usr/include/nop/utility/bounded_reader.h"
  #include "/usr/include/nop/utility/bounded_writer.h"
  #include "/usr/include/nop/utility/buffer_reader.h"
  #include "/usr/include/nop/utility/buffer_writer.h"
  #include "/usr/include/nop/utility/compiler.h"
  #include "/usr/include/nop/utility/constexpr_buffer_writer.h"
  #include "/usr/include/nop/utility/die.h"
  #include "/usr/include/nop/utility/endian.h"
  #include "/usr/include/nop/utility/fd_reader.h"
  #include "/usr/include/nop/utility/fd_writer.h"
  #include "/usr/include/nop/utility/pedantic_buffer_reader.h"
  #include "/usr/include/nop/utility/pedantic_buffer_writer.h"
  #include "/usr/include/nop/utility/sip_hash.h"
  #include "/usr/include/nop/utility/stream_reader.h"
  #include "/usr/include/nop/utility/stream_writer.h"
  #include "/usr/include/nop/value.h"

  // add namespaces
  namespace nop{typedef int tmp_add_type_1;}
  nop::tmp_add_type_1 tmp_add_func_1(){return 0;};
  namespace nop{namespace detail{typedef int tmp_add_type_2;}}
  nop::detail::tmp_add_type_2 tmp_add_func_2(){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;
  f_owner_ex* tmp_add_class_3;
  file_handle* tmp_add_class_4;
  flock64* tmp_add_class_5;
  iovec* tmp_add_class_6;

The GCC parameters:
  gcc -fdump-lang-raw -fkeep-inline-functions -c -x c++ -fpermissive -w "/tmp/7Yll1WDakR/dump1.h"