--- gforth/Attic/io.c	1994/11/29 16:22:41	1.6
+++ gforth/Attic/io.c	1995/01/18 18:41:38	1.7
@@ -7,6 +7,8 @@
    Use -D_POSIX_VERSION for POSIX systems.
 */
 
+#include <unistd.h>
+
 #ifdef DOMAINOS
 #define _POSIX_VERSION
 #endif
@@ -31,10 +33,6 @@
 #  endif
 #endif
 
-#if defined (HAVE_UNISTD_H)
-#  include <unistd.h>
-#endif
-
 #define NEW_TTY_DRIVER
 #define HAVE_BSD_SIGNALS
 /*