https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116458
--- Comment #11 from David Binderman <dcb314 at hotmail dot com> --- I confirm that the fix works for me. On a more subtle note, if two functions are strongly related, would it be wise to have them in the same file with some comments and maybe even some asserts to ensure compatibility ? It might prevent similar errors of this type in future.
