resend, seems like i got blocked from the other address, even @ BTS
On Thu, 2012-06-07 at 06:51 -0400, Thomas Dickey wrote:
> On Thu, Jun 07, 2012 at 06:42:24AM +0000, shawn wrote:
> > Package: libncursesw5
> > Version: 5.9-8
> > Severity: important
> > Tags: upstream
> >
> > int main() {
> > struct pollfd myfds;
> > int ret;
> >
> > myfds.fd = 0;
> > myfds.events = POLLIN;
> >
> > ret = poll(&myfds, 1, 100);
>
> Reflecting on it, the check relies on the given file-descriptor and timeout.
> Standard input is not redirected.
>
> The check does need a tty though (for Darwin). The return-code for that might
> be a -1 (making a comparison for that case more apt - will have to test).
>
> Almost all of my build-logs (reviewing my build-logs, I see one out of ~60
> combinations failing for Linux) for Linux show it working - probably depends
> upon the environment.
All of my computers' ncurses, under a number of distributions, are using
select().
>
> > If i compile the C test myself, adding a printf at the end, ret==0 after
> > the poll().
> >
> > The buildds are returning
> >
> > "checking if poll really works... no"
> >
> > yet Linux's poll() is fine.
>
> usually (I seem to recall that the original reason for testing poll vs
> select was in fact a buggy implementation on Linux - that's been a while).
I recompiled ncurses forcing poll() and it worked fine with my existing
ncurses binaries; on 3.2 kernel. Copying these libncurses and libtinfo,
plus new libc, to a Centos 6.2 machine, (2.6.32) and using it with
system binaries there also worked, with is sadly the oldest OS I have
with disk space available.
--
-Shawn Landden
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