Re: CANNOT_DUMP support

[Chris Hall]

On 2008-02-13 20:47:46 -1000 Stephen J. Turnbull <address@hidden> 
wrote:

> If somebody wants to follow up, Olivier Galibert knows how.

This page at the XEmacs web site:

http://www.xemacs.org/Releases/Public-21.2/projects/pdump.html

appears to have been written by one Olivier Galibert, and includes the 
following:

"The portable dumper executes Emacs as usual, then reloads the Lisp 
code and data very quickly from a specially formatted dump file. This 
is not as fast as the unexec method, but it requires much less 
knowledge of the operating system, and is thus more portable and 
maintainable.
... it is a distinct improvement over the traditional dump process on 
the NT platform.
... this feature is considered extremely important for the Windows 
platform, and truly reverting this feature to the status quo ante 
would require reimplementing pure space,"

Then under "Other open issues" (although it appears to be the only 
open issue):

"The pdumper has cost us ``pure space.'' this bothers Hrvoje, at 
least."

The implications of this are beyond my ken, but I assume pure space 
exists for a reason, so there exists a high probability of 
implications.