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Date: Tue, 12 Dec 2000 22:15:47 -0500
From: Christopher Faylor <cgf AT redhat DOT com>
To: cygwin AT cygwin DOT com
Subject: Re: missing gmtime_r & localtime_r in .a files
Message-ID: <20001212221547.A9358@redhat.com>
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In-Reply-To: <20001213030509.28601.qmail@web109.yahoomail.com>; from earnie_boyd@yahoo.com on Tue, Dec 12, 2000 at 07:05:09PM -0800

On Tue, Dec 12, 2000 at 07:05:09PM -0800, Earnie Boyd wrote:
>--- Christopher Faylor <cgf AT redhat DOT com> wrote:
>>On Tue, Dec 12, 2000 at 06:12:59PM -0800, Joseph Heled wrote:
>>>While I see the prototype for gmtime_r & localtime_r in
>>>/usr/include/time.h, the linker reports they are not found.
>>>
>>>I tried 'nm *.a | grep gmtime_r' in /usr/lib, which gave no hits.
>>>
>>>I am using cygwin version 1.15.  gcc version is gcc-2.95.2-5.
>>
>>The headers that are used by Cygwin come from 'newlib'.  We don't
>>necessarily export every single function from the newlib library in
>>cygwin.
>>
>>So, if you get a "not found" error when linking then you can believe
>>it.  It's not available in cygwin.
>
>However, it is possible for the cygwin1.dll to contain the functions
>but they're not available from libcygwin.a simply because the
>winsup/cygwin/cygwin.din file doesn't contain them.  ;) Both of these
>exist in the cygwin1.dll file.

Which really matters not a whit if the function is not exported.

I actually specifically did not mention this to avoid confusion, i.e.

"What is a cygwin.din?  Can I just edit that file to get the function?
If the function is in cygwin.din, why isn't it exported???????????"

cgf

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