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Date:	Thu, 22 Feb 2007 08:19:58 -0500
From:	"Larry Hall (Cygwin)" <reply-to-list-only-lh AT cygwin DOT com>
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Subject:	Re: FW: Re: [emacs_user AT hotmail DOT com: ***MEMORY-ERROR***: emacs[5172]: GSlice: failed
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Jan Djärv wrote:
> 
> Larry Hall wrote:
> 
>> Jan DjÃrv wrote:
>>
>> Larry Hall wrote:
>>> Jan D. wrote:
>>
>>> It seems that when Emacs defines its own malloc and friends, memalign 
>>> returns ENOSYS. But emacs defines its own memalign as well. Shouldn't
>>> that one be called?
>>
>>
>> Seems like it though it sounds like something that would be controlled 
>> by the emacs configure script to me.
>>
>>
>>
>> I don't follow. How can the Emacs configure script make sure the Emacs
>> supplied memalign is called by glib?
>>
>>
>>
>> Ah, sorry.  I missed that you were referring to glib.  I agree that 
>> there should be some consistency here.  Perhaps things would work 
>> better if Emacs
>>  used none of it's own m* implementations.  That's just a WAG.  I 
>> really have no experience with the Emacs code base.  But it does sound 
>> to me like this would be Emacs configurable at least. ;-)
> 
> 
> I'll try without Emacs own malloc.  But dynamic linking on w32 seems 
> strange to me, why is not Emacs own memalign called by glib?

With DLLs, symbol resolution happens at link time, not runtime.  The only
way to avoid this fact is to use dllopen (in Cygwin) or LoadLibrary (in
Win32) and friends.  If glib needs to reference something in Emacs, an
import library with these symbol resolutions must appear after the reference
to glib on the link line.  I don't know if that explains why Emacs' memalign
is not called from glib but it hopefully clarifies the DLL linking issue
some.

-- 
Larry Hall                              http://www.rfk.com
RFK Partners, Inc.                      (508) 893-9779 - RFK Office
216 Dalton Rd.                          (508) 893-9889 - FAX
Holliston, MA 01746

_____________________________________________________________________

A: Yes.
 > Q: Are you sure?
 >> A: Because it reverses the logical flow of conversation.
 >>> Q: Why is top posting annoying in email?

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