Temporary header file '/tmp/yK_T8rTN40/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/google/sparsehash/densehashtable.h"
  #include "/usr/include/google/sparsehash/hashtable-common.h"
  #include "/usr/include/google/sparsehash/libc_allocator_with_realloc.h"
  #include "/usr/include/google/sparsehash/sparsehashtable.h"
  #include "/usr/include/google/template_util.h"
  #include "/usr/include/google/type_traits.h"
  #include "/usr/include/sparsehash/internal/densehashtable.h"
  #include "/usr/include/sparsehash/internal/hashtable-common.h"
  #include "/usr/include/sparsehash/internal/libc_allocator_with_realloc.h"
  #include "/usr/include/sparsehash/internal/sparseconfig.h"
  #include "/usr/include/sparsehash/internal/sparsehashtable.h"
  #include "/usr/include/sparsehash/template_util.h"
  #include "/usr/include/sparsehash/type_traits.h"

  // add namespaces
  namespace google{typedef int tmp_add_type_1;}
  google::tmp_add_type_1 tmp_add_func_1(){return 0;};
  namespace google{namespace base{typedef int tmp_add_type_2;}}
  google::base::tmp_add_type_2 tmp_add_func_2(){return 0;};
  namespace google{namespace internal{typedef int tmp_add_type_3;}}
  google::internal::tmp_add_type_3 tmp_add_func_3(){return 0;};
  namespace google{namespace sparsehash_internal{typedef int tmp_add_type_4;}}
  google::sparsehash_internal::tmp_add_type_4 tmp_add_func_4(){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/yK_T8rTN40/dump1.h"