Re: No coding system used for environment variables

[Andreas Schwab]

Jason Rumney <jasonr@gnu.org> writes:

> YAMAMOTO Mitsuharu wrote:
>> Second, as DECODE_FILE causes GC and string compaction in general,
>> some variables such as `nm' in Fexpand_file_name may not point to
>> valid data after that.
>
> This is a problem on some systems that still do not support stack marking
> for GC protection of such variables. But I think this bug is important
> enough to fix those problems rather than revert the patch.

Only Lisp_Object variables are protected.  Failing to protect
non-Lisp_Object pointers can result in crashes.  A crash is always the
worst possible problem.

Andreas.

-- 
Andreas Schwab, SuSE Labs, schwab@suse.de
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