report presence of ADV and MSG options in unistd.h and sysconf
diff --git a/include/unistd.h b/include/unistd.h
index ee22b21..151a6ce 100644
--- a/include/unistd.h
+++ b/include/unistd.h
@@ -201,6 +201,7 @@
 #define _POSIX_VERSION          200809L
 #define _POSIX2_VERSION         _POSIX_VERSION
 
+#define _POSIX_ADVISORY_INFO    _POSIX_VERSION
 #define _POSIX_CHOWN_RESTRICTED 1
 #define _POSIX_IPV6             _POSIX_VERSION
 #define _POSIX_JOB_CONTROL      1
@@ -208,6 +209,7 @@
 #define _POSIX_MEMLOCK          _POSIX_VERSION
 #define _POSIX_MEMLOCK_RANGE    _POSIX_VERSION
 #define _POSIX_MEMORY_PROTECTION _POSIX_VERSION
+#define _POSIX_MESSAGE_PASSING  _POSIX_VERSION
 #define _POSIX_FSYNC            _POSIX_VERSION
 #define _POSIX_NO_TRUNC         1
 #define _POSIX_RAW_SOCKETS      _POSIX_VERSION
diff --git a/src/conf/sysconf.c b/src/conf/sysconf.c
index 1f66031..b2e94e5 100644
--- a/src/conf/sysconf.c
+++ b/src/conf/sysconf.c
@@ -32,7 +32,7 @@
 		[_SC_MEMLOCK] = VER,
 		[_SC_MEMLOCK_RANGE] = VER,
 		[_SC_MEMORY_PROTECTION] = VER,
-		[_SC_MESSAGE_PASSING] = -1,
+		[_SC_MESSAGE_PASSING] = VER,
 		[_SC_SEMAPHORES] = VER,
 		[_SC_SHARED_MEMORY_OBJECTS] = -1,
 		[_SC_AIO_LISTIO_MAX] = -1,
@@ -144,7 +144,7 @@
 		[_SC_XOPEN_LEGACY] = -1,
 		[_SC_XOPEN_REALTIME] = -1,
 		[_SC_XOPEN_REALTIME_THREADS] = -1,
-		[_SC_ADVISORY_INFO] = -1,
+		[_SC_ADVISORY_INFO] = VER,
 		[_SC_BARRIERS] = VER,
 		[_SC_BASE] = -1,
 		[_SC_C_LANG_SUPPORT] = -1,