new file mode 100644
--- /dev/null
+++ b/src/oct-prcstrm.h
@@ -0,0 +1,74 @@
+/*
+
+Copyright (C) 1996 John W. Eaton
+
+This file is part of Octave.
+
+Octave is free software; you can redistribute it and/or modify it
+under the terms of the GNU General Public License as published by the
+Free Software Foundation; either version 2, or (at your option) any
+later version.
+
+Octave is distributed in the hope that it will be useful, but WITHOUT
+ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+for more details.
+
+You should have received a copy of the GNU General Public License
+along with Octave; see the file COPYING.  If not, write to the Free
+Software Foundation, 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+
+*/
+
+#if !defined (octave_octave_procstream_h)
+#define octave_octave_procstream_h 1
+
+#include "oct-stdstrm.h"
+
+class
+octave_iprocstream : public octave_istdiostream
+{
+public:
+
+  octave_iprocstream (const string& n,
+		      ios::openmode arg_md = ios::in,
+		      arch_type arg_at = native);
+
+  ~octave_iprocstream (void);
+
+private:
+
+  // No copying!
+
+  octave_iprocstream (const octave_iprocstream&);
+
+  octave_iprocstream& operator = (const octave_iprocstream&);
+};
+
+class
+octave_oprocstream : public octave_ostdiostream
+{
+public:
+
+  octave_oprocstream (const string& n,
+		       ios::openmode arg_md = ios::out,
+		       arch_type arg_at = native);
+
+  ~octave_oprocstream (void);
+
+private:
+
+  // No copying!
+
+  octave_oprocstream (const octave_oprocstream&);
+
+  octave_oprocstream& operator = (const octave_oprocstream&);
+};
+
+#endif
+
+/*
+;;; Local Variables: ***
+;;; mode: C++ ***
+;;; End: ***
+*/