Temporary header file '/tmp/1CuIrjOBcv/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/share/cargo/registry/libsodium-sys-0.2.7/sodium_wrapper.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; crypto_aead_aes256gcm_state_* tmp_add_class_3; crypto_auth_hmacsha256_state* tmp_add_class_4; crypto_auth_hmacsha512_state* tmp_add_class_5; crypto_generichash_blake2b_state* tmp_add_class_6; crypto_hash_sha256_state* tmp_add_class_7; crypto_hash_sha512_state* tmp_add_class_8; crypto_onetimeauth_poly1305_state* tmp_add_class_9; crypto_secretstream_xchacha20poly1305_state* tmp_add_class_10; crypto_sign_ed25519ph_state* tmp_add_class_11; randombytes_implementation* tmp_add_class_12; The GCC parameters: gcc -fdump-lang-raw -fkeep-inline-functions -c -x c++ -fpermissive -w "/tmp/1CuIrjOBcv/dump1.h"