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Re: [platform-testers] texinfo-6.5.90 pretest on HP-UX

From: Gavin Smith
Subject: Re: [platform-testers] texinfo-6.5.90 pretest on HP-UX
Date: Sat, 19 Jan 2019 18:16:39 +0000
User-agent: Mutt/1.5.23 (2014-03-12)

On Fri, Jan 18, 2019 at 11:52:33PM +0100, Bruno Haible wrote:
> There are two test failures:
> FAIL: ii-0041-test
> FAIL: ii-0050-test
> The log for ii-0041-test contains this:
> + findprog zdiff
> + zdiff ../../../install-info/tests/ii-0041-expected-dir-file.gz 
> /tmp/haible015772.gz
> Warning : missing newline at end of file 
> ../../../install-info/tests/ii-0041-expected-dir-file.gz
> Warning : missing newline at end of file /tmp/haible015772.gz
> 1c1
> <`�oG
> ---
> > �
> + retval=1

Indeed, I looked at a hex dump of ii-0041-expected-dir-file.gz and "oG" 
is near the start of the file.  It's not comparing the uncompressed 
files properly.  Maybe the HP-UX zdiff doesn't support gzip format.

I found this old report:


> * HP-UX 11 ships with two zdiff binaries (in /usr/bin and /usr/contrib/bin) 
> and 
> tends
>   to pick the "non-gzip" version in /usr/bin with the default PATH. To get 
> around
>   this, I put /usr/contrib/bin in front of the PATH just before zdiff is run
>   (line 21 in install-info/tests/ii-0041-test and line 22 in
>   install-info/tests/ii-0050-test):

I don't think this is a very important issue to fix. I'm not sure how it could
be fixed:

* Bundle zdiff with texinfo
* Avoid using zdiff and replicate its functionality in the test scripts using
  more standard tools.
* Check whether zdiff works as expected and skip the test if it doesn't.  This
  would be easier than the previous two options.

Does the default zdiff with HPUX have a --version output that we could check?

Or maybe we could just do zdiff --version | grep gzip to check it is the
version that comes with gzip.  It is only two tests, after all.

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