Subject: bug#11971: Emacs 24.1 fails to build on ia64 with "value as variable is void"

From: Glenn Morris <[email-masked]>
Date: Fri, 25 Jan 2013 12:36:33 -0500

Andreas Schwab wrote:

>> Are you saying we need to change Emacs's configure.ac to define
>> GC_MARK_STACK as GC_USE_GCPROS_AS_BEFORE on ia64 GNU/Linux?
>
> You can define via CPPFLAGS, see the comment in lisp.h.

Sure. But if the problem occurs on many/most ia64 platforms, obviously
we should change the default to the conservative one. Or is there
something unusual about the Debian one?