Include unlocked-io.h.
-rw-r--r-- 18852 ABOUT-NLS
-rw-r--r-- 17992 COPYING
-rw-r--r-- 1034 GNUmakefile
-rw-r--r-- 9221 INSTALL
-rw-r--r-- 1446 Makefile.cfg
-rw-r--r-- 10374 Makefile.maint
-rw-r--r-- 18878 THANKS
drwxr-xr-x - doc
drwxr-xr-x - lib
drwxr-xr-x - m4
drwxr-xr-x - man
drwxr-xr-x - old
drwxr-xr-x - po
drwxr-xr-x - src
drwxr-xr-x - tests