diff --git a/include/_ctype.h b/include/_ctype.h
index e5ec784cd5e2..294ab231c56f 100644
--- a/include/_ctype.h
+++ b/include/_ctype.h
@@ -65,6 +65,12 @@
 #define	_CTYPE_I	0x00080000L		/* Ideogram */
 #define	_CTYPE_T	0x00100000L		/* Special */
 #define	_CTYPE_Q	0x00200000L		/* Phonogram */
+#define	_CTYPE_SWM	0xe0000000L		/* Mask to get screen width data */
+#define	_CTYPE_SWS	30			/* Bits to shift to get width */
+#define	_CTYPE_SW0	0x20000000L		/* 0 width character */
+#define	_CTYPE_SW1	0x00000000L		/* 1 width character / default*/
+#define	_CTYPE_SW2	0x80000000L		/* 2 width character */
+#define	_CTYPE_SW3	0xc0000000L		/* 3 width character */
 
 __BEGIN_DECLS
 int	isalnum(int);
diff --git a/include/ctype.h b/include/ctype.h
index e5ec784cd5e2..294ab231c56f 100644
--- a/include/ctype.h
+++ b/include/ctype.h
@@ -65,6 +65,12 @@
 #define	_CTYPE_I	0x00080000L		/* Ideogram */
 #define	_CTYPE_T	0x00100000L		/* Special */
 #define	_CTYPE_Q	0x00200000L		/* Phonogram */
+#define	_CTYPE_SWM	0xe0000000L		/* Mask to get screen width data */
+#define	_CTYPE_SWS	30			/* Bits to shift to get width */
+#define	_CTYPE_SW0	0x20000000L		/* 0 width character */
+#define	_CTYPE_SW1	0x00000000L		/* 1 width character / default*/
+#define	_CTYPE_SW2	0x80000000L		/* 2 width character */
+#define	_CTYPE_SW3	0xc0000000L		/* 3 width character */
 
 __BEGIN_DECLS
 int	isalnum(int);