[PATCH 2/2 v5] [BZ #10283] localedef: align fixed maps to SHMLBA

[Roland McGrath]

You're not going to convince me that SHMLBA counts as "generic".
The code should be written to make MAP_FIXED_ALIGNMENT optional
and not do any extra alignment if it's not defined in libc-mmap.h.
The generic libc-mmap.h should be empty (just comments).
sysdeps/unix/sysv/linux/libc-mmap.h can use SHMLBA.

It may be worthwhile to define a proper public API for this (probably a GNU
extension sysconf code makes sense), document that and implement it
appropriately.  The sysdeps/unix/sysv/linux implementation of that could
just use the existing SHMLBA.  Then localedef would be changed to use that
API.  But that's for the future.


Thanks,
Roland