AIX 5.1 as target

[Bruno Haible]

Jim Meyering wrote in
<https://lists.gnu.org/archive/html/coreutils/2012-01/msg00059.html>:
> > FAIL: rm/unread3
> > ================
> > rm: unable to record current working directory: Too many open files
> > rm: unable to record current working directory: Too many open files
> 
> I might debug it if I had access to such a system.
> On the other hand, I get the impression that there are so few AIX 5.x
> systems around and in actual use that it's probably not worth it.
> Besides, they're probably (due to lack of openat-etc. support) using
> the save-cwd emulation layer, which few systems use these days.
> 
> Given the fundamental failures reflected in this report,
> what do you think about removing AIX 5.1 from gnulib's list of
> reasonable portability targets?

Our rule of thumb [1] is to provide gnulib support as long as vendor support
exists.

According to Wikipedia [2], the vendor support of AIX 5.1 ended in 2006,
the one of AIX 5.2 in 2009, and AIX 5.3 is still vendor-supported.

So I have no problem with dropping AIX 5.1 and 5.2 from the list of platforms
I test on, and use AIX 5.3 instead. It has openat().

Bruno

[1] http://www.gnu.org/software/gnulib/manual/html_node/Target-Platforms.html
[2] http://en.wikipedia.org/wiki/AIX#POWER.2FPowerPC_releases