Bring back LX zones.

@@ -375,10 +375,28 @@
 #endif /* !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) */
 #define TCSADRAIN       (_TIOC|15) /* same as TCSETSW */
 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
 #define TCSETSF         (_TIOC|16)
 
+ /*
+ * linux terminal ioctls we need to be aware of
+ */
+#define TIOCSETLD       (_TIOC|123)     /* set line discipline parms */
+#define TIOCGETLD       (_TIOC|124)     /* get line discipline parms */
+
+/*
+ * The VMIN and VTIME and solaris overlap with VEOF and VEOL - This is
+ * perfectly legal except, linux expects them to be separate. So we keep
+ * them separately.
+ */
+struct lx_cc {
+        unsigned char veof;     /* veof value */
+        unsigned char veol;     /* veol value */
+        unsigned char vmin;     /* vmin value */
+        unsigned char vtime;    /* vtime value */
+};
+
 /*
  * NTP PPS ioctls
  */
 #define TIOCGPPS        (_TIOC|125)
 #define TIOCSPPS        (_TIOC|126)