Hello Bruno, * Bruno Haible wrote on Tue, Aug 08, 2006 at 03:09:12PM CEST: > Ralf Wildenhues wrote:
> > > + #elif defined _AIX > > > + /* Work around an AIX 3.2.5 xlc bug with enums constants defined as > > > offsetof > > > + values. */ > > > + # define sa_alignof(type) 4 > > > > It looks rather scary to me, ... > > But second, newer AIX versions may align 'long long' on an 8 byte > > boundary. So, if sa_alignof needs only mention an upper bound (which I > > don't know, as I don't know this code), then that should be 8. > > You're right; I didn't think at newer versions of AIX. I'm applying the > appended patch. Thanks. Note this still doesn't cope with -qalign, nor would I bet money that AIX won't ever use 8 byte alignment for 4 byte types (or similar). > > But maybe it's either not worth catering for AIX 3.2.5 any more (hey, AIX > > 4.3.3 has reached end of service life for a while) > > I cared about it as long as an AIX 3.2.5 machine was part of my zoo of > machine. Maybe Nelson Beebe still has one in his zoo. Fine with me. > > What was the original bug report that prompted this, by the way? It > > should affect some Autoconf proper code as well. > > Noticed it while building gettext or libiconv. I didn't bother to report > a bug to myself :-) Sure. But since we (well, I ;-) still don't know what the bug is, and I don't have access to AIX 3.2.5 to check, I can't really judge whether... > - I don't see any autoconf code use the equivalent of __alignof__. ...AC_CHECK_ALIGNOF needs to be adjusted for this. Cheers, Ralf
