* fhandler.cc (check_posix_perm): Moved here from syscalls.cc.
(fhandler_base::fpathconf): New method implementing (f)pathconf.
* fhandler.h (class fhandler_base): Declare fpathconf method.
* path.cc (path_conv::check): Replace MAX_LINK_DEPTH with SYMLOOP_MAX.
* path.h (MAX_LINK_DEPTH): Delete.
* syscalls.cc (check_posix_perm): Move to fhandler.cc.
(fpathconf): Call fhandler's fpathconf method.
(pathconf): Build fhandler and call fhandler's fpathconf method.
* sysconf.cc (sysconf): Reorder switch according to order of flags
in sys/unistd.h. Add handling for some missing flags.
* include/limits.h: Reorder according to SUSv3 description. Add some
missing definitions. Add comments.
* include/sys/syslimits.h: New file overriding newlib's syslimits.h
file.
86bc8fadff