--- a/usr/src/lib/libc/port/gen/sysconf.c	Mon Aug 20 20:07:56 2007 -0700
+++ b/usr/src/lib/libc/port/gen/sysconf.c	Mon Aug 20 21:48:23 2007 -0700
@@ -231,13 +231,19 @@
 
 		/* XPG4/POSIX.1-1990/POSIX.2-1992 names */
 		case _SC_2_C_BIND:
-			return ((long)_POSIX2_C_BIND);
+			if (__xpg6 & _C99SUSv3_XPG6_sysconf_version)
+				return (200112L);
+			else
+				return (1L);
 
 		case _SC_2_CHAR_TERM:
 			return ((long)_POSIX2_CHAR_TERM);
 
 		case _SC_2_C_DEV:
-			return ((long)_POSIX2_C_DEV);
+			if (__xpg6 & _C99SUSv3_XPG6_sysconf_version)
+				return (200112L);
+			else
+				return (1L);
 
 		case _SC_2_C_VERSION:
 			if (__xpg6 & _C99SUSv3_XPG6_sysconf_version)
@@ -249,16 +255,28 @@
 			return (-1L);
 
 		case _SC_2_FORT_RUN:
-			return ((long)_POSIX2_FORT_RUN);
+			if (__xpg6 & _C99SUSv3_XPG6_sysconf_version)
+				return (200112L);
+			else
+				return (1L);
 
 		case _SC_2_LOCALEDEF:
-			return ((long)_POSIX2_LOCALEDEF);
+			if (__xpg6 & _C99SUSv3_XPG6_sysconf_version)
+				return (200112L);
+			else
+				return (1L);
 
 		case _SC_2_SW_DEV:
-			return ((long)_POSIX2_SW_DEV);
+			if (__xpg6 & _C99SUSv3_XPG6_sysconf_version)
+				return (200112L);
+			else
+				return (1L);
 
 		case _SC_2_UPE:
-			return ((long)_POSIX2_UPE);
+			if (__xpg6 & _C99SUSv3_XPG6_sysconf_version)
+				return (200112L);
+			else
+				return (1L);
 
 		case _SC_2_VERSION:
 			if (__xpg6 & _C99SUSv3_XPG6_sysconf_version)

--- a/usr/src/uts/common/sys/unistd.h	Mon Aug 20 20:07:56 2007 -0700
+++ b/usr/src/uts/common/sys/unistd.h	Mon Aug 20 21:48:23 2007 -0700
@@ -18,6 +18,7 @@
  *
  * CDDL HEADER END
  */
+
 /*
  *	Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T
  *	  All Rights Reserved
@@ -362,7 +363,7 @@
 
 #define	_XOPEN_XPG3			/* Supports XPG, Issue 3 */
 #define	_XOPEN_XPG4			/* Supports XPG, Issue 4 */
-#define	_XOPEN_UNIX			/* Supports XPG, Issue 4, Version 2 */
+#define	_XOPEN_UNIX		0	/* Supports X/Open System Interfaces */
 
 #ifndef	_XOPEN_XCU_VERSION
 #define	_XOPEN_XCU_VERSION	4	/* Supports XCU4 */
@@ -371,13 +372,23 @@
 #define	_XOPEN_REALTIME		1	/* Supports Realtime */
 #define	_XOPEN_ENH_I18N		1	/* Supports Enhanced International */
 #define	_XOPEN_SHM		1	/* Supports Shared Memory Feature */
+#define	_POSIX2_CHAR_TERM	1	/* Supports at least 1 terminal type */
+
+#ifdef _XPG6
 #define	_POSIX2_C_BIND	  200112L	/* Supports C Language Bindings */
-#define	_POSIX2_C_DEV		1	/* Supports C language dev utility */
-#define	_POSIX2_CHAR_TERM	1	/* Supports at least 1 terminal type */
+#define	_POSIX2_C_DEV	  200112L	/* Supports C language dev utility */
 #define	_POSIX2_FORT_RUN  200112L	/* Supports FORTRAN runtime */
+#define	_POSIX2_LOCALEDEF 200112L	/* Supports creation of locales */
+#define	_POSIX2_SW_DEV	  200112L	/* Supports S/W Development Utility */
+#define	_POSIX2_UPE	  200112L 	/* Supports User Portability Utility */
+#else
+#define	_POSIX2_C_BIND		1	/* Supports C Language Bindings */
+#define	_POSIX2_C_DEV		1	/* Supports C language dev utility */
+#define	_POSIX2_FORT_RUN	1	/* Supports FORTRAN runtime */
 #define	_POSIX2_LOCALEDEF	1	/* Supports creation of locales */
-#define	_POSIX2_SW_DEV		1 	/* Supports S/W Devlopement Utility */
+#define	_POSIX2_SW_DEV		1	/* Supports S/W Development Utility */
 #define	_POSIX2_UPE		1 	/* Supports User Portability Utility */
+#endif /* _XPG6 */
 
 /* UNIX 03 names */
 #define	_POSIX_REGEXP		1	/* Supports POSIX Regular Expressions */