Temporary header file '/tmp/FHE2_rqWpq/dump1.h' with the following content will be compiled to create GCC translation unit dump:

  // add defines
  #define __STDC_VERSION__ 201710L
#define _TIME_BITS 64
#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/libssh2.h"
  #include "/usr/include/libssh2_publickey.h"
  #include "/usr/include/libssh2_sftp.h"

  // add classes
  _LIBSSH2_POLLFD* tmp_add_class_0;
  _LIBSSH2_SFTP_ATTRIBUTES* tmp_add_class_1;
  _LIBSSH2_SFTP_STATVFS* tmp_add_class_2;
  _LIBSSH2_USERAUTH_KBDINT_PROMPT* tmp_add_class_3;
  _LIBSSH2_USERAUTH_KBDINT_RESPONSE* tmp_add_class_4;
  _libssh2_publickey_attribute* tmp_add_class_5;
  _libssh2_publickey_list* tmp_add_class_6;
  libssh2_agent_publickey* tmp_add_class_7;
  libssh2_knownhost* tmp_add_class_8;
  statx_timestamp* tmp_add_class_9;

The GCC parameters:
  gcc -fdump-lang-raw -fkeep-inline-functions -c -x c++ -fpermissive -w "/tmp/FHE2_rqWpq/dump1.h"