Temporary header file '/tmp/JdL7jTdir_/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/ginac/add.h"
  #include "/usr/include/ginac/archive.h"
  #include "/usr/include/ginac/assertion.h"
  #include "/usr/include/ginac/basic.h"
  #include "/usr/include/ginac/class_info.h"
  #include "/usr/include/ginac/clifford.h"
  #include "/usr/include/ginac/color.h"
  #include "/usr/include/ginac/compiler.h"
  #include "/usr/include/ginac/constant.h"
  #include "/usr/include/ginac/container.h"
  #include "/usr/include/ginac/ex.h"
  #include "/usr/include/ginac/excompiler.h"
  #include "/usr/include/ginac/expair.h"
  #include "/usr/include/ginac/expairseq.h"
  #include "/usr/include/ginac/exprseq.h"
  #include "/usr/include/ginac/factor.h"
  #include "/usr/include/ginac/fail.h"
  #include "/usr/include/ginac/fderivative.h"
  #include "/usr/include/ginac/flags.h"
  #include "/usr/include/ginac/function.h"
  #include "/usr/include/ginac/ginac.h"
  #include "/usr/include/ginac/hash_map.h"
  #include "/usr/include/ginac/idx.h"
  #include "/usr/include/ginac/indexed.h"
  #include "/usr/include/ginac/inifcns.h"
  #include "/usr/include/ginac/integral.h"
  #include "/usr/include/ginac/integration_kernel.h"
  #include "/usr/include/ginac/lst.h"
  #include "/usr/include/ginac/matrix.h"
  #include "/usr/include/ginac/mul.h"
  #include "/usr/include/ginac/ncmul.h"
  #include "/usr/include/ginac/normal.h"
  #include "/usr/include/ginac/numeric.h"
  #include "/usr/include/ginac/operators.h"
  #include "/usr/include/ginac/parse_context.h"
  #include "/usr/include/ginac/parser.h"
  #include "/usr/include/ginac/power.h"
  #include "/usr/include/ginac/print.h"
  #include "/usr/include/ginac/pseries.h"
  #include "/usr/include/ginac/ptr.h"
  #include "/usr/include/ginac/registrar.h"
  #include "/usr/include/ginac/relational.h"
  #include "/usr/include/ginac/structure.h"
  #include "/usr/include/ginac/symbol.h"
  #include "/usr/include/ginac/symmetry.h"
  #include "/usr/include/ginac/tensor.h"
  #include "/usr/include/ginac/version.h"
  #include "/usr/include/ginac/wildcard.h"

  // add namespaces
  namespace cln{typedef int tmp_add_type_1;}
  cln::tmp_add_type_1 tmp_add_func_1(){return 0;};
  namespace GiNaC{typedef int tmp_add_type_2;}
  GiNaC::tmp_add_type_2 tmp_add_func_2(){return 0;};
  namespace GiNaC{namespace internal{typedef int tmp_add_type_3;}}
  GiNaC::internal::tmp_add_type_3 tmp_add_func_3(){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/JdL7jTdir_/dump1.h"