Temporary header file '/tmp/GsSppheE80/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

  // add includes
  #include "/usr/include/mspack.h"

  // add classes
  mscab_compressor* tmp_add_class_0;
  mscab_decompressor* tmp_add_class_1;
  mscabd_cabinet* tmp_add_class_2;
  mscabd_file* tmp_add_class_3;
  mscabd_folder* tmp_add_class_4;
  mschm_compressor* tmp_add_class_5;
  mschm_decompressor* tmp_add_class_6;
  mschmc_file* tmp_add_class_7;
  mschmd_file* tmp_add_class_8;
  mschmd_header* tmp_add_class_9;
  mschmd_sec_mscompressed* tmp_add_class_10;
  mschmd_sec_uncompressed* tmp_add_class_11;
  mschmd_section* tmp_add_class_12;
  mshlp_compressor* tmp_add_class_13;
  mshlp_decompressor* tmp_add_class_14;
  mskwaj_compressor* tmp_add_class_15;
  mskwaj_decompressor* tmp_add_class_16;
  mskwajd_header* tmp_add_class_17;
  mslit_compressor* tmp_add_class_18;
  mslit_decompressor* tmp_add_class_19;
  msoab_compressor* tmp_add_class_20;
  msoab_decompressor* tmp_add_class_21;
  mspack_file* tmp_add_class_22;
  mspack_system* tmp_add_class_23;
  msszdd_compressor* tmp_add_class_24;
  msszdd_decompressor* tmp_add_class_25;
  msszddd_header* tmp_add_class_26;

The GCC parameters:
  gcc -fdump-lang-raw -fkeep-inline-functions -c -x c++ -fpermissive -w "/tmp/GsSppheE80/dump1.h"