[RFC] Where to put arch-dependant locking in malloc/thread-m.h

[wmglo@dent.med.uni-muenchen.de]

Hi,

> The following patch fixes the issue, but I'm not content about it's
> placement in malloc/thread-m.h. Any comments about where I might put
> this in order to make maintenance easier?

Ok, I have become convinced it is best to move thread-m.h into
sysdeps.  We should rename it, too (my suggestion: malloc-machine.h),
and make sure that one can put e.g.

#define DEFAULT_MMAP_THRESHOLD (256*1024)

in there and have it reflected in malloc.

I'll send a patch for this tomorrow.

Regards,
Wolfram.