src/compat.h

   1 /* Guile-R6RS-Libs --- Implementation of R6RS standard libraries.
   2    Copyright (C) 2008, 2009  Ludovic Courtès <ludo@gnu.org>
   3
   4    Guile-R6RS-Libs is free software; you can redistribute it and/or
   5    modify it under the terms of the GNU Lesser General Public
   6    License as published by the Free Software Foundation; either
   7    version 2.1 of the License, or (at your option) any later version.
   8
   9    Guile-R6RS-Libs is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12    Lesser General Public License for more details.
  13
  14    You should have received a copy of the GNU Lesser General Public
  15    License along with Guile-R6RS-Libs; if not, write to the Free Software
  16    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA  */
  17
  18 #ifndef GUILE_R6RS_COMPAT_H
  19 #define GUILE_R6RS_COMPAT_H
  20
  21 #ifdef HAVE_CONFIG_H
  22 # include <config.h>
  23 #endif
  24
  25 /* The `scm_set_port_read ()' method was once proposed to provide a flexible
  26    and better performing replacement for the `fill_input' port method:
  27    http://lists.gnu.org/archive/html/guile-devel/2008-06/msg00004.html .
  28    It has not made it (yet?) into a Guile release.  */
  29
  30 #ifdef HAVE_SCM_SET_PORT_READ
  31 # define PORT_FILL_INPUT_METHOD(m)  NULL
  32 #else
  33 # define PORT_FILL_INPUT_METHOD(m)  (m)
  34 # define scm_set_port_read(p, r)    do { } while (0)
  35 #endif
  36
  37 #endif