Temporary header file '/tmp/OSp6fbv70G/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/jwt/algorithm.hpp"
  #include "/usr/include/jwt/assertions.hpp"
  #include "/usr/include/jwt/base64.hpp"
  #include "/usr/include/jwt/config.hpp"
  #include "/usr/include/jwt/detail/meta.hpp"
  #include "/usr/include/jwt/error_codes.hpp"
  #include "/usr/include/jwt/exceptions.hpp"
  #include "/usr/include/jwt/jwt.hpp"
  #include "/usr/include/jwt/parameters.hpp"
  #include "/usr/include/jwt/short_string.hpp"
  #include "/usr/include/jwt/stack_alloc.hpp"
  #include "/usr/include/jwt/string_view.hpp"

  // add namespaces
  namespace jwt{typedef int tmp_add_type_1;}
  jwt::tmp_add_type_1 tmp_add_func_1(){return 0;};
  namespace jwt{namespace algo{typedef int tmp_add_type_2;}}
  jwt::algo::tmp_add_type_2 tmp_add_func_2(){return 0;};
  namespace jwt{namespace detail{typedef int tmp_add_type_3;}}
  jwt::detail::tmp_add_type_3 tmp_add_func_3(){return 0;};
  namespace jwt{namespace detail{namespace meta{typedef int tmp_add_type_4;}}}
  jwt::detail::meta::tmp_add_type_4 tmp_add_func_4(){return 0;};
  namespace jwt{namespace params{typedef int tmp_add_type_5;}}
  jwt::params::tmp_add_type_5 tmp_add_func_5(){return 0;};
  namespace jwt{namespace params{namespace detail{typedef int tmp_add_type_6;}}}
  jwt::params::detail::tmp_add_type_6 tmp_add_func_6(){return 0;};
  namespace nlohmann{typedef int tmp_add_type_7;}
  nlohmann::tmp_add_type_7 tmp_add_func_7(){return 0;};
  namespace jwt{namespace __anon2e3677fc5f11{typedef int tmp_add_type_8;}}
  jwt::__anon2e3677fc5f11::tmp_add_type_8 tmp_add_func_8(){return 0;};
  namespace nlohmann{namespace json_abi_v3_11_2{typedef int tmp_add_type_9;}}
  nlohmann::json_abi_v3_11_2::tmp_add_type_9 tmp_add_func_9(){return 0;};
  namespace nlohmann{namespace json_abi_v3_11_2{namespace detail{typedef int tmp_add_type_10;}}}
  nlohmann::json_abi_v3_11_2::detail::tmp_add_type_10 tmp_add_func_10(){return 0;};
  namespace nlohmann{namespace json_abi_v3_11_2{namespace detail2{typedef int tmp_add_type_11;}}}
  nlohmann::json_abi_v3_11_2::detail2::tmp_add_type_11 tmp_add_func_11(){return 0;};
  namespace nlohmann{namespace json_abi_v3_11_2{namespace detail{namespace container_input_adapter_factory_impl{typedef int tmp_add_type_12;}}}}
  nlohmann::json_abi_v3_11_2::detail::container_input_adapter_factory_impl::tmp_add_type_12 tmp_add_func_12(){return 0;};
  namespace nlohmann{namespace json_abi_v3_11_2{namespace detail{namespace dtoa_impl{typedef int tmp_add_type_13;}}}}
  nlohmann::json_abi_v3_11_2::detail::dtoa_impl::tmp_add_type_13 tmp_add_func_13(){return 0;};
  namespace nlohmann{namespace json_abi_v3_11_2{namespace detail{namespace impl{typedef int tmp_add_type_14;}}}}
  nlohmann::json_abi_v3_11_2::detail::impl::tmp_add_type_14 tmp_add_func_14(){return 0;};
  namespace nlohmann{namespace json_abi_v3_11_2{namespace literals{typedef int tmp_add_type_15;}}}
  nlohmann::json_abi_v3_11_2::literals::tmp_add_type_15 tmp_add_func_15(){return 0;};
  namespace nlohmann{namespace json_abi_v3_11_2{namespace literals{namespace json_literals{typedef int tmp_add_type_16;}}}}
  nlohmann::json_abi_v3_11_2::literals::json_literals::tmp_add_type_16 tmp_add_func_16(){return 0;};

  // add classes
  ASN1_ENCODING_st* tmp_add_class_0;
  BIO_sock_info_u* tmp_add_class_1;
  BIT_STRING_BITNAME_st* tmp_add_class_2;
  Netscape_certificate_sequence* tmp_add_class_3;
  Netscape_spkac_st* tmp_add_class_4;
  Netscape_spki_st* tmp_add_class_5;
  PBE2PARAM_st* tmp_add_class_6;
  PBEPARAM_st* tmp_add_class_7;
  PBKDF2PARAM_st* tmp_add_class_8;
  PKCS7_CTX_st* tmp_add_class_9;
  SCRYPT_PARAMS_st* tmp_add_class_10;
  SHA256state_st* tmp_add_class_11;
  SHA512state_st* tmp_add_class_12;
  SHAstate_st* tmp_add_class_13;
  X509_algor_st* tmp_add_class_14;
  X509_info_st* tmp_add_class_15;
  X509_val_st* tmp_add_class_16;
  _G_fpos64_t* tmp_add_class_17;
  _G_fpos_t* tmp_add_class_18;
  _IO_cookie_io_functions_t* tmp_add_class_19;
  asn1_string_st* tmp_add_class_20;
  asn1_string_table_st* tmp_add_class_21;
  asn1_type_st* tmp_add_class_22;
  buf_mem_st* tmp_add_class_23;
  conf_method_st* tmp_add_class_24;
  conf_st* tmp_add_class_25;
  crypto_ex_data_st* tmp_add_class_26;
  crypto_threadid_st* tmp_add_class_27;
  evp_cipher_info_st* tmp_add_class_28;
  lhash_st_CONF_VALUE* tmp_add_class_29;
  lhash_st_OPENSSL_CSTRING* tmp_add_class_30;
  lhash_st_OPENSSL_STRING* tmp_add_class_31;
  obj_name_st* tmp_add_class_32;
  ossl_algorithm_st* tmp_add_class_33;
  ossl_dispatch_st* tmp_add_class_34;
  ossl_item_st* tmp_add_class_35;
  ossl_param_st* tmp_add_class_36;
  pkcs7_digest_st* tmp_add_class_37;
  pkcs7_enc_content_st* tmp_add_class_38;
  pkcs7_encrypted_st* tmp_add_class_39;
  pkcs7_enveloped_st* tmp_add_class_40;
  pkcs7_issuer_and_serial_st* tmp_add_class_41;
  pkcs7_recip_info_st* tmp_add_class_42;
  pkcs7_signed_st* tmp_add_class_43;
  pkcs7_signedandenveloped_st* tmp_add_class_44;
  pkcs7_signer_info_st* tmp_add_class_45;
  pkcs7_st* tmp_add_class_46;
  private_key_st* tmp_add_class_47;
  rsa_oaep_params_st* tmp_add_class_48;
  rsa_pss_params_st* tmp_add_class_49;
  x509_trust_st* tmp_add_class_50;

The GCC parameters:
  gcc -fdump-lang-raw -fkeep-inline-functions -c -x c++ -fpermissive -w "/tmp/OSp6fbv70G/dump1.h"