Re: testsuite failures when test scripts are run with zsh

[Ralf Wildenhues]

Hi Stefano,

* Stefano Lattarini wrote on Mon, Aug 31, 2009 at 01:30:05PM CEST:
> > I forced the automake testsuite to run tests in parallel using the
> > *Zsh* shell, with the following command:
> >  $ make -j5 TEST_LOG_COMPILER='zsh  --nofunctionargzero' check
> >
> > The following failures turned up:
> >
> > FAIL: aclocal8.test (exit: 1)
> > FAIL: acsilent.test (exit: 1)
> > FAIL: depcomp2.test (exit: 1)
> > FAIL: getopt.test (exit: 1)
> > FAIL: location.test (exit: 1)
> > FAIL: missing3.test (exit: 1)
> > FAIL: output-order.test (exit: 1)
> > FAIL: parallel-tests4.test (exit: 2)
> > FAIL: unused.test (exit: 1)
> > FAIL: warnopts.test (exit: 1)
> > FAIL: check9-p.test (exit: 2)

> If anybody is still interested in this report: I did some further
> investigations, and it soon turned out that the failures are due to
> the fact that zsh (version 4 or later) handle the `-x' option in a
> totally brain-damaged way. In details: if a command which is run
> when `set -x' is active has its standard error redirected to a file,
> then zsh writes *also the trace* for the command into that file,
> instead that into the original standard error.
[...]
> I found no workaround.

info Autoconf "File Descriptors"

describes this issue and a possible workaround.  Wanna give it a try?

Thanks!
Ralf