GNU bug report logs - #24330
mingw64: diff complains about the argument '-' (stdin), not able to run testsuites generated by automake [side issue: not able to compile diffutils-3.5]

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Simon Sobisch <simonsobisch <at> gnu.org>
To: bug-diffutils <at> gnu.org
Subject: mingw64: diff complains about the argument '-' (stdin), not able to
 run testsuites generated by automake [side issue: not able to compile
 diffutils-3.5]
Date: Mon, 29 Aug 2016 23:08:23 +0200

I'd rather like to see MinGW builds for the upcoming GnuCOBOL 2.0
release than a VisualStudio build just "because it compiles directly and
the MinGW build does not".

Concerning diff this is "only" a testsuite issue but I can hope you can
help me clearing things up.

It all started with running the testsuite and mostly getting failures.

After some investigations (and fixing a borked -R linker parameter) we
found that nearly everything works - but the testsuite still fails with
the output:

	C:\msys64\mingw64\bin\diff.exe: -: Invalid argument

The user tried hard in the hope that rebuilding diffutils would help -
he got into the known issue "bug#24304".

Side note: I've seen
http://lists.gnu.org/archive/html/bug-diffutils/2016-08/msg00052.html
and wonder where exactly this bug/wish-list item is tracked (I did not
seen any trackers at savannah).

I highly suggest to at least add an error during ./configure about the
not working environment (maybe adding the link to the bug report)
instead of leaving the user with a broken compilation.


Back to the main question of this post:
Do you have any idea how to fix "-: Invalid argument"? Where should we
look at (the user compiled diffutils 3.3 with some unoffical patches but
the problem persists).

Thank you,
Simon

Message #8 received at 24330 <at> debbugs.gnu.org (full text, mbox):

From: Simon Sobisch <simonsobisch <at> gnu.org>
To: 24330 <at> debbugs.gnu.org
Subject: Re: bug#24330: Acknowledgement (mingw64: diff complains about the
 argument '-' (stdin), not able to run testsuites generated by automake [side
 issue: not able to compile diffutils-3.5])
Date: Mon, 29 Aug 2016 23:43:27 +0200

[Message part 1 (text/plain, inline)]

> Side note: I've seen
> http://lists.gnu.org/archive/html/bug-diffutils/2016-08/msg00052.html
> and wonder where exactly this bug/wish-list item is tracked (I did not
> seen any trackers at savannah).

Found it at http://debbugs.gnu.org/cgi/bugreport.cgi?bug=24304 by
debuggs response...
I highly suggest to add a link to
http://debbugs.gnu.org/db/pa/ldiffutils.html somewhere (and ask the
savannah admins to create it "visible as main top links as savannah's
trackers", if you did not do already and cannot be achieved manually).

https://www.gnu.org/software/diffutils/ still says:

> For [...] bug and patch trackers, and other information, please see
the Diffutils project page at savannah.gnu.org.

Simon

Am 29.08.2016 um 23:19 schrieb GNU bug Tracking System:
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Message #11 received at 24330 <at> debbugs.gnu.org (full text, mbox):

From: Paul Eggert <eggert <at> cs.ucla.edu>
To: Simon Sobisch <simonsobisch <at> gnu.org>, 24330 <at> debbugs.gnu.org
Subject: Re: [bug-diffutils] bug#24330: mingw64: diff complains about the
 argument '-' (stdin), not able to run testsuites generated by automake [side
 issue: not able to compile diffutils-3.5]
Date: Tue, 30 Aug 2016 09:51:30 -0700

Simon Sobisch wrote:
> Do you have any idea how to fix "-: Invalid argument"? Where should we
> look at

I suggest writing to the Mingw folks, as Mingw is low priority for us. You might 
start by pointing them to this bug report:

https://sourceforge.net/p/gnuwin32/bugs/135/

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