gvfs.c:13:76: too few arguments to function call, expected 4, have 3

gvfs.c:20:76: too few arguments to function call, expected 4, have 3

gvfs.c:22:21: incompatible function pointer types passing 'int (const char *, const char *, void *)' to parameter of type 'config_fn_t' (aka 'int (*)(const char *, const char *, const struct config_context *, void *)') [-Werror,-Wincompatible-function-pointer-types]