bfd_get_filename will not be exactly NAME but rather NAME with
TARGET_SYSROOT_PREFIX stripped. */
-gdb_bfd_ref_ptr gdb_bfd_open (const char *name, const char *target, int fd);
+gdb_bfd_ref_ptr gdb_bfd_open (const char *name, const char *target,
+ int fd = -1);
/* Mark the CHILD BFD as being a member of PARENT. Also, increment
the reference count of CHILD. Calling this function ensures that