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Re: Cygwin build report on Windows XP

From: Eric Blake
Subject: Re: Cygwin build report on Windows XP
Date: Thu, 18 Feb 2010 06:18:45 -0700
User-agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv: Gecko/20090812 Thunderbird/ Mnenhy/

According to Simon Josefsson on 2/18/2010 6:00 AM:
>> I've seen these failures for a long time now, but have not been bothered
>> enough by them to do anything about it (m4 is single-threaded, so I use
>> gnulib-tool --avoid tls-tests to avoid the test in the first place).
> I don't think there has been a cygwin regression here -- the code in
> gnulib's m4/threadlib.m4 effectively disables this stuff on Cygwin 1.5
> (but not on Cygwin 1.7) if I understand it correctly:

That's true.  But cygwin DOES behave differently between 1.5 and 1.7 for
pthreads, because it was fixing some races.  It looks like not all the
races were fixed, and that test-tls fails differently for 1.7 than it does
for 1.5 (if you force it to run on 1.5).  Which means cygwin still has
bugs that need fixing.

> What's not clear to me is if Cygwin 1.x for x > 5 is supposed to have
> fixed that problem or not.

Yes, cygwin 1.7 has intentional patches to fix pthread, and if there is
still a bug in 1.7.1, it is hopeful that it can be patched for 1.7.2.

Don't work too hard, make some time for fun as well!

Eric Blake             address@hidden

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