* libc/include/utime.h: Add include of <_ansi.h>.
* libc/sys/linux/Makefile.am: Add utimes.c.
* libc/sys/linux/Makefile.in: Regenerated.
* libc/sys/linux/inode.c(__umask): New static routine.
(umask): Written to use __umask and attempt to thread lock.
(getumask): New function written to use __umask and thread lock.
* libc/sys/linux/utimes.c: New file.
* libc/sys/linux/sys/time.h: Fix utimes prototype.
* libc/sys/linux/sys/utime.h: New file.