Derelease bufpol/line

RELEASE

@@ -187,13 +187,14 @@ We now manage the project using SourceForge:
   and a direct interface to the crypt function.
 
 ** API changes
-  Some procedures of the previous releases are currently not
+  Some features of the previous releases are currently not
   supported as we did not have the time to implement them. Please tell
   us, if you can't get along without them. Here is a listing of these
-  currently dereleased procedures:
+  currently dereleased features:
     select
     select!
     ODBC support
+    bufpol/line 
 
   The following procedures received new names in this release:
     sleep (now process-sleep)

doc/scsh-manual/syscalls.tex

@@ -910,6 +910,7 @@ There are three buffering policies that may be chosen:
 The line buffering policy flushes output whenever a newline is output;
 whenever the buffer is full; or whenever an input is read from stdin.
 Line buffering is the default for ports open on terminal devices.
+\oops{The current implementation doesn't support \ex{bufpol/line}.}
 
 The \var{size} argument requests an I/O buffer of \var{size} bytes.
 If not given, a reasonable default is used; if given and zero,

scsh/newports.scm

@@ -195,7 +195,8 @@
 	   (install-buffer port new-buffer size)
 	   (release-port-lock port)))
 	((eq? policy bufpol/line)
-	 (install-nullbuffer port (make-line-output-proc size)))
+	 ;(install-nullbuffer port (make-line-output-proc size)))
+	 (error "bufpol/line is currently not supported"))
 	(else (warn "policy not supported " policy))))
 
 (define (install-nullbuffer port handler)