2011-01-09 Paul Eggert <eggert@cs.ucla.edu>
+ Include <unistd.h> unilaterally.
+ * alloc.c, atimer.c, buffer.c, callproc.c, dired.c, dispnew.c, doc.c:
+ * doprnt.c, editfns.c, emacs.c, fileio.c, filelock.c, fns.c:
+ * getloadavg.c, getpagesize.h, gmalloc.c, image.c, keyboard.c:
+ * lread.c, process.c, process.h, ralloc.c, regex.c, sysdep.c:
+ * systty.h, term.c, termcap.c, xfns.c, xrdb.c, xselect.c, xsmfns.c:
+ * xterm.c:
+ Include <unistd.h> without worrying about HAVE_UNISTD_H, since
+ unistd.h is always present now, possibly supplied by gnulib.
+
* mktime.c: Remove; moving to ../lib.
Use gnulib's mktime module.