3 files changed, 11 insertions, 7 deletions
diff --git a/conform/data/fcntl.h-data b/conform/data/fcntl.h-data
index 0fbe7d57fe..5771af6bba 100644
--- a/conform/data/fcntl.h-data
+++ b/conform/data/fcntl.h-data
@@ -62,12 +62,14 @@ constant S_ISUID
 constant S_ISGID
 constant S_ISVTX
 
+#ifdef XOPEN2K
 constant POSIX_FADV_NORMAL
 constant POSIX_FADV_SEQUENTIAL
 constant POSIX_FADV_RANDOM
 constant POSIX_FADV_WILLNEED
 constant POSIX_FADV_DONTNEED
 constant POSIX_FADV_NOREUSE
+#endif
 
 type {struct flock}
 
@@ -84,9 +86,11 @@ type pid_t
 function int creat (const char*, mode_t)
 function int fcntl (int, int, ...)
 function int open (const char*, int, ...)
+#ifdef XOPEN2K
 function int posix_fadvise (int, off_t, size_t, int)
 function int posix_fallocate (int, off_t, size_t)
 function int posix_madvise (void*, size_t, int)
+#endif
 
 allow-header sys/stat.h
 allow-header unistd.h
diff --git a/conform/data/netinet/in.h-data b/conform/data/netinet/in.h-data
index ad2dd790b0..b6465aaf71 100644
--- a/conform/data/netinet/in.h-data
+++ b/conform/data/netinet/in.h-data
@@ -29,12 +29,12 @@ element {struct sockaddr_in6} uint32_t sin6_scope_id
 
 variable {struct in6_addr} in6addr_any
 
-# constant IN6ADDR_ANY_INIT
+// constant IN6ADDR_ANY_INIT
 macro IN6ADDR_ANY_INIT
 
 variable {struct in6_addr} in6addr_loopback
 
-#constant IN6ADDR_LOOPBACK_INIT
+// constant IN6ADDR_LOOPBACK_INIT
 macro IN6ADDR_LOOPBACK_INIT
 
 type {struct ipv6_mreq}
diff --git a/conform/data/sys/stat.h-data b/conform/data/sys/stat.h-data
index afdbd2c888..3873284ca4 100644
--- a/conform/data/sys/stat.h-data
+++ b/conform/data/sys/stat.h-data
@@ -57,11 +57,11 @@ macro S_ISFIFO
 macro S_ISREG
 macro S_ISLNK
 
-# How to represent optional tests?
-# macro S_TYPEISMQ
-# macro S_TYPEISSEM
-# macro S_TYPEISSHM
-# macro S_TYPEISTMO
+// How to represent optional tests?
+// macro S_TYPEISMQ
+// macro S_TYPEISSEM
+// macro S_TYPEISSHM
+// macro S_TYPEISTMO
 
 function int chmod (const char*, mode_t)
 function int fchmod (int, mode_t)