Temporary header file '/tmp/5HsGaPRUhd/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
#define getaddrinfo_a(a,b,c,d)

  // add includes
  #include "/usr/include/charls/annotations.h"
  #include "/usr/include/charls/api_abi.h"
  #include "/usr/include/charls/charls.h"
  #include "/usr/include/charls/charls_jpegls_decoder.h"
  #include "/usr/include/charls/charls_jpegls_encoder.h"
  #include "/usr/include/charls/jpegls_error.h"
  #include "/usr/include/charls/public_types.h"
  #include "/usr/include/charls/validate_spiff_header.h"
  #include "/usr/include/charls/version.h"

  // add namespaces
  namespace charls{typedef int tmp_add_type_1;}
  charls::tmp_add_type_1 tmp_add_func_1(){return 0;};
  namespace charls{namespace impl{typedef int tmp_add_type_2;}}
  charls::impl::tmp_add_type_2 tmp_add_func_2(){return 0;};
  namespace charls{namespace encoding_options_private{typedef int tmp_add_type_3;}}
  charls::encoding_options_private::tmp_add_type_3 tmp_add_func_3(){return 0;};

  // add classes
  JfifParameters* tmp_add_class_0;
  JlsParameters* tmp_add_class_1;
  JlsRect* tmp_add_class_2;
  JpegLSPresetCodingParameters* tmp_add_class_3;
  _G_fpos64_t* tmp_add_class_4;
  _G_fpos_t* tmp_add_class_5;
  _IO_cookie_io_functions_t* tmp_add_class_6;
  charls_frame_info* tmp_add_class_7;
  charls_jpegls_pc_parameters* tmp_add_class_8;
  charls_spiff_header* tmp_add_class_9;

The GCC parameters:
  gcc -fdump-lang-raw -fkeep-inline-functions -c -x c++ -fpermissive -w "/tmp/5HsGaPRUhd/dump1.h"