diff --git a/streams/Makefile b/streams/Makefile
index ac8963c..04922fa 100644
--- a/streams/Makefile
+++ b/streams/Makefile
@@ -22,7 +22,7 @@ subdir	:= streams
 
 include ../Makeconfig
 
-headers		= stropts.h sys/stropts.h bits/stropts.h bits/xtitypes.h
+#headers		= stropts.h sys/stropts.h bits/stropts.h bits/xtitypes.h
 routines	= isastream getmsg getpmsg putmsg putpmsg fattach fdetach
 
 include ../Rules
diff --git a/sysdeps/unix/sysv/linux/bits/posix_opt.h b/sysdeps/unix/sysv/linux/bits/posix_opt.h
index 2339d4a..3d19b86 100644
--- a/sysdeps/unix/sysv/linux/bits/posix_opt.h
+++ b/sysdeps/unix/sysv/linux/bits/posix_opt.h
@@ -188,4 +188,7 @@
 /* Typed memory objects are not available.  */
 #define _POSIX_TYPED_MEMORY_OBJECTS	-1
 
+/* Streams are not available.  */
+#define _XOPEN_STREAMS	-1
+
 #endif /* bits/posix_opt.h */