new file mode 100644
--- /dev/null
+++ b/src/sighandlers.h
@@ -0,0 +1,49 @@
+// sighandlers.h                                               -*- C++ -*-
+/*
+
+Copyright (C) 1992, 1993 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, 675 Mass Ave, Cambridge, MA 02139, USA.
+
+*/
+
+#if !defined (_sighandlers_h)
+#define _sighandlers_h 1
+
+#ifdef __GNUG__
+#pragma interface
+#endif
+
+// Nonzero means we have already printed a message for this series of
+// SIGPIPES.  We assume that the writer will eventually give up.
+extern int pipe_handler_error_count;
+
+// Nonzero means we can be interrupted.
+extern int can_interrupt;
+
+typedef RETSIGTYPE sig_handler (...);
+
+extern void install_signal_handlers (void);
+
+#endif
+
+/*
+;;; Local Variables: ***
+;;; mode: C++ ***
+;;; page-delimiter: "^/\\*" ***
+;;; End: ***
+*/