Temporary header file '/tmp/PLdGO7kIMn/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) 
  #define _FILE_OFFSET_BITS 64

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

  // 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;
  _gpgme_engine_info* tmp_add_class_3;
  _gpgme_import_status* tmp_add_class_4;
  _gpgme_invalid_key* tmp_add_class_5;
  _gpgme_key* tmp_add_class_6;
  _gpgme_key_sig* tmp_add_class_7;
  _gpgme_new_signature* tmp_add_class_8;
  _gpgme_op_assuan_result* tmp_add_class_9;
  _gpgme_op_decrypt_result* tmp_add_class_10;
  _gpgme_op_encrypt_result* tmp_add_class_11;
  _gpgme_op_genkey_result* tmp_add_class_12;
  _gpgme_op_import_result* tmp_add_class_13;
  _gpgme_op_keylist_result* tmp_add_class_14;
  _gpgme_op_query_swdb_result* tmp_add_class_15;
  _gpgme_op_sign_result* tmp_add_class_16;
  _gpgme_op_verify_result* tmp_add_class_17;
  _gpgme_op_vfs_mount_result* tmp_add_class_18;
  _gpgme_recipient* tmp_add_class_19;
  _gpgme_sig_notation* tmp_add_class_20;
  _gpgme_signature* tmp_add_class_21;
  _gpgme_subkey* tmp_add_class_22;
  _gpgme_tofu_info* tmp_add_class_23;
  _gpgme_trust_item* tmp_add_class_24;
  _gpgme_user_id* tmp_add_class_25;
  _gpgrt__stream* tmp_add_class_26;
  _gpgrt_cookie_io_functions* tmp_add_class_27;
  _gpgrt_poll_s* tmp_add_class_28;
  _gpgrt_syshd* tmp_add_class_29;
  gpgme_conf_arg* tmp_add_class_30;
  gpgme_conf_comp* tmp_add_class_31;
  gpgme_conf_opt* tmp_add_class_32;
  gpgme_data_cbs* tmp_add_class_33;
  gpgme_io_cbs* tmp_add_class_34;
  gpgme_io_event_done_data* tmp_add_class_35;

The GCC parameters:
  gcc -fdump-lang-raw -fkeep-inline-functions -c -x c++ -fpermissive -w "/tmp/PLdGO7kIMn/dump1.h"