Re: Mac OS X: Rebuild Require after Security Update 2002-11-21

[Steven Tamm <steventamm@mac.com>]

Yay.  I just checked it in.

	* unexmacosx.c (unexec_realloc): Use malloc_default_zone to
	determine the size of pointers alloced in unexed space instead
	of using possibly invalid emacs_zone pointers.  This fixes the
	binary incompatibility problems caused by updates to libSystem.B.

If anybody is making binary distributions publicly available, you 
should sync the change to unexmacosx.c and rebuild.  And I invite 
anyone to look into adding a pre-flight/post-flight script to the Mac 
OS X installer to "backup" the apple-provided 21.1 binary if installing 
into /usr/bin.  Some people on versiontracker were complaining.

-Steven

> Hi Steven,
>
> Hey, that's some great debugging!!  With your change above, I was able
> to verify that an executable dumped on 10.2.2 before the security 
> update
> can be run on one after the update was applied.  Please install the
> change when you can.
>
> Somewhat related, while working in unexmacosx.c, I notice the function
> build_region_list.  This function is left over from earlier versions of
> the file and is unnecessary since dumping is now based on the 
> emacs_zone
> regions.  I'll remove it at some point.
>
> Andrew.
>
>
>
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