Re: mktime() problem when building print/a2ps

[Paul Goyette <paul%whooppee.com@localhost>]

On Fri, 14 Oct 2022, Martin Husemann wrote:

> On Fri, Oct 14, 2022 at 08:52:49AM +0200, Thomas Klausner wrote:
> > On Thu, Oct 13, 2022 at 07:10:46PM -0700, Paul Goyette wrote:
> > > Strange problem...
> > >
> > > Host and target are both an AMD64 NetBSD 9.99.99 build from sources
> > > dated 2022-09-09 at 01:58:58 UTC.  Thepackages are all being built
> > > in a chroot sandbox (as created with sysutils/mksandbox).  And my
> > > pkgsrc itself is from today 2022-10-13 at 19:29:24 UTC.
> > >
> > > All predecessor/dependency packages have been rebuilt from today's
> > > source and installed in the sandbox.  When I get to print/a2ps, it
> > > starts to run, and fails in configure.  The last thing in the log
> > > file is
> > >
> > > 	...
> > > 	checking limits.h usability... yes
> > > 	checking limits.h presence... yes
> > > 	checking for limits.h... yes
> > > 	checking for working mktime...
> > >
> > > and it never progresses beyond this point.  It appears to be in a
> > > processor-bound loop making this check, and xosview reports that one
> > > cpu (6% of a total of 16threads) is completely busy.  top(1) reports
> > > that a process called ``conftest'' is running with 98.97% of one
> > > thread.
> > >
> > > I don't know what conftest is, but this sure appears broken!
> > >
> > > Any suggestions?
> >
> > This takes much longer than I'd expect it to, but it finishes for me
> > in less than a minute.
>
> Thomas: can you show the code?
>
> Paul: can you modify the configure script to add -g to the command line
> and then attach gdb to the long running process?

kre@ noticed some comments in the code regarding mktime().  i also
noticed that a2ps built correctly when building it as a dependency
for something else (magicfilter).

Yet when i rebuilt it again "by itself" it hung again.  interestingly,
a Ctrl-C/bg/fg seqence gave it a kick and it continued normally after
that.

Looking at the code, it seems that the alarm(60) didn't work.

gdb is possible, but will not happen soon.


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