Temporary header file '/tmp/6zY32XhMu6/dump1.h' with the following content will be compiled to create GCC translation unit dump:

  // add defines
  #define __STDC_VERSION__ 201710L
#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/cppconn/build_config.h"
  #include "/usr/include/cppconn/config.h"
  #include "/usr/include/cppconn/connection.h"
  #include "/usr/include/cppconn/datatype.h"
  #include "/usr/include/cppconn/driver.h"
  #include "/usr/include/cppconn/exception.h"
  #include "/usr/include/cppconn/metadata.h"
  #include "/usr/include/cppconn/parameter_metadata.h"
  #include "/usr/include/cppconn/prepared_statement.h"
  #include "/usr/include/cppconn/resultset.h"
  #include "/usr/include/cppconn/resultset_metadata.h"
  #include "/usr/include/cppconn/sqlstring.h"
  #include "/usr/include/cppconn/statement.h"
  #include "/usr/include/cppconn/variant.h"
  #include "/usr/include/cppconn/version_info.h"
  #include "/usr/include/cppconn/warning.h"
  #include "/usr/include/mysql_connection.h"
  #include "/usr/include/mysql_driver.h"
  #include "/usr/include/mysql_error.h"

  // add namespaces
  namespace boost{typedef int tmp_add_type_1;}
  boost::tmp_add_type_1 tmp_add_func_1(){return 0;};
  namespace boost{namespace detail{typedef int tmp_add_type_2;}}
  boost::detail::tmp_add_type_2 tmp_add_func_2(){return 0;};
  namespace boost{namespace movelib{typedef int tmp_add_type_3;}}
  boost::movelib::tmp_add_type_3 tmp_add_func_3(){return 0;};
  namespace sql{typedef int tmp_add_type_4;}
  sql::tmp_add_type_4 tmp_add_func_4(){return 0;};
  namespace sql{namespace mysql{typedef int tmp_add_type_5;}}
  sql::mysql::tmp_add_type_5 tmp_add_func_5(){return 0;};
  namespace sql{namespace mysql{namespace NativeAPI{typedef int tmp_add_type_6;}}}
  sql::mysql::NativeAPI::tmp_add_type_6 tmp_add_func_6(){return 0;};
  namespace boost{namespace exception_detail{typedef int tmp_add_type_7;}}
  boost::exception_detail::tmp_add_type_7 tmp_add_func_7(){return 0;};

  // 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;

The GCC parameters:
  gcc -fdump-lang-raw -fkeep-inline-functions -c -x c++ -fpermissive -w "/tmp/6zY32XhMu6/dump1.h"