[bug-diffutils] bug#19186: bug#19186: [PATCH] OS/2 patches

[KO Myung-Hun]

Jim Meyering wrote:
> On Wed, Dec 10, 2014 at 9:37 PM, KO Myung-Hun <address@hidden> wrote:
>> Jim Meyering wrote:
>>> On Tue, Nov 25, 2014 at 6:29 PM, KO Myung-Hun <address@hidden> wrote:
>>>> Hi/2.
>>>>
>>>> These are OS/2 patches.
>>>>
>>>> Review, please...
>>>>
>>>> [PATCH 1/2] build: use quotation mark(") for PATH
>>>> [PATCH 2/2] diff: skip test if seek is not possible on OS/2 kLIBC
>>>
>>> I saw no patches here, but was able to dig them out of the
>>> bug-tracking system at http://debbugs.gnu.org/19186.
>>> I have applied and pushed the first one.  Thank you.
>>>
>>> However, for the second, my inclination is that if at all possible,
>>> it should be fixed via an lseek replacement that does something
>>> more sensible. Of course, that may not be possible, but from
>>> what you've presented so far, I cannot tell. Please demonstrate
>>> a use of diff that shows how OS/2+kLIBC's lseek fails.
>>
>> Do you want this ?
>>
>> -----
>> $ cat file | diff - file
>> diff.exe: -: Invalid seek
>> -----
> 
> Yes.  Thanks. That shows how lseek-pipe fails on your system.
> Please adjust your patch to make diff ignore failure only in that case,
> i.e., when errno == EINVAL (assuming strerror(EINVAL)
> produces that diagnostic).

Do you mean to add errno == EINVAL to if() for pfatal_with_name() ?

Then contents read from pipe are consumed and cannot be recovered. So
diff behaves in wrong way.

-- 
KO Myung-Hun

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