Temporary header file '/tmp/gJ31w4jNLl/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/htp/bstr.h"
  #include "/usr/include/htp/bstr_builder.h"
  #include "/usr/include/htp/htp.h"
  #include "/usr/include/htp/htp_base64.h"
  #include "/usr/include/htp/htp_config.h"
  #include "/usr/include/htp/htp_connection_parser.h"
  #include "/usr/include/htp/htp_core.h"
  #include "/usr/include/htp/htp_decompressors.h"
  #include "/usr/include/htp/htp_hooks.h"
  #include "/usr/include/htp/htp_list.h"
  #include "/usr/include/htp/htp_multipart.h"
  #include "/usr/include/htp/htp_table.h"
  #include "/usr/include/htp/htp_transaction.h"
  #include "/usr/include/htp/htp_urlencoded.h"
  #include "/usr/include/htp/htp_utf8_decoder.h"
  #include "/usr/include/htp/htp_version.h"
  #include "/usr/include/htp/lzma/7zTypes.h"
  #include "/usr/include/htp/lzma/LzmaDec.h"

  // add classes
  IByteIn* tmp_add_class_0;
  IByteOut* tmp_add_class_1;
  ICompressProgress* tmp_add_class_2;
  ILookInStream* tmp_add_class_3;
  ISeekInStream* tmp_add_class_4;
  ISeqInStream* tmp_add_class_5;
  ISeqOutStream* tmp_add_class_6;
  ISzAlloc* tmp_add_class_7;
  _CLzmaProps* tmp_add_class_8;
  _G_fpos64_t* tmp_add_class_9;
  _G_fpos_t* tmp_add_class_10;
  _IO_cookie_io_functions_t* tmp_add_class_11;
  bstr_builder_t* tmp_add_class_12;
  bstr_t* tmp_add_class_13;
  gzFile_s* tmp_add_class_14;
  gz_header_s* tmp_add_class_15;
  htp_callback_t* tmp_add_class_16;
  htp_conn_t* tmp_add_class_17;
  htp_decompressor_gzip_t* tmp_add_class_18;
  htp_decompressor_t* tmp_add_class_19;
  htp_file_data_t* tmp_add_class_20;
  htp_file_t* tmp_add_class_21;
  htp_header_t* tmp_add_class_22;
  htp_hook_t* tmp_add_class_23;
  htp_log_t* tmp_add_class_24;
  htp_multipart_part_t* tmp_add_class_25;
  htp_multipart_t* tmp_add_class_26;
  htp_param_t* tmp_add_class_27;
  htp_tx_data_t* tmp_add_class_28;
  htp_tx_t* tmp_add_class_29;
  htp_uri_t* tmp_add_class_30;
  htp_urlen_param_t* tmp_add_class_31;
  htp_urlenp_t* tmp_add_class_32;
  itimerval* tmp_add_class_33;
  z_stream_s* tmp_add_class_34;

The GCC parameters:
  gcc -fdump-lang-raw -fkeep-inline-functions -c -x c++ -fpermissive -w "/tmp/gJ31w4jNLl/dump1.h"