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