Temporary header file '/tmp/t0mZVNF1Fa/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/openconnect.h"

  // add classes
  oc_auth_form* tmp_add_class_0;
  oc_cert* tmp_add_class_1;
  oc_choice* tmp_add_class_2;
  oc_form_opt* tmp_add_class_3;
  oc_form_opt_select* tmp_add_class_4;
  oc_ip_info* tmp_add_class_5;
  oc_split_include* tmp_add_class_6;
  oc_stats* tmp_add_class_7;
  oc_vpn_option* tmp_add_class_8;
  oc_vpn_proto* tmp_add_class_9;
  oc_webview_result* tmp_add_class_10;

The GCC parameters:
  gcc -fdump-lang-raw -fkeep-inline-functions -c -x c++ -fpermissive -w "/tmp/t0mZVNF1Fa/dump1.h"