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+# Copyright (C) 1990, 1991, 1992, 1993, 1994, 1995, 1996 Free Software Foundation, Inc.
+# 
+# This program 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.
+# 
+# This program 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 this software; see the file COPYING.  If not, write to
+# the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
+#
+# As a special exception, the Free Software Foundation gives permission
+# for additional uses of the text contained in its release of GUILE.
+#
+# The exception is that, if you link the GUILE library with other files
+# to produce an executable, this does not by itself cause the
+# resulting executable to be covered by the GNU General Public License.
+# Your use of that executable is in no way restricted on account of
+# linking the GUILE library code into it.
+#
+# This exception does not however invalidate any other reasons why
+# the executable file might be covered by the GNU General Public License.
+#
+# This exception applies only to the code released by the
+# Free Software Foundation under the name GUILE.  If you copy
+# code from other Free Software Foundation releases into a copy of
+# GUILE, as the General Public License permits, the exception does
+# not apply to the code that you add in this way.  To avoid misleading
+# anyone as to the status of such modified files, you must delete
+# this exception notice from them.
+#
+# If you write modifications of your own for GUILE, it is your choice
+# whether to permit this exception to apply to your modifications.
+# If you do not wish that, delete this exception notice.  
+
+# ".gdbinit" GDB 4.16 initialization for SCM Scheme Interpreter
+# Author: Aubrey Jaffer
+
+set output-radix 16.
+
+define runscm
+  break abrt
+  echo \nto return to gdb, type: (abort)\n\n
+  run
+end
+
+define verbose
+  output (prolixity(((($arg0)<<1)<<1)+2L))>>2
+  echo\n
+end
+
+define errobj
+  call iprin1(*loc_errobj, sys_protects[2], 1),(void)0
+  call newline(sys_protects[2]),(void)0
+end
+
+define scm
+  call iprin1($arg0, sys_protects[2], 1),(void)0
+  call newline(sys_protects[2]),(void)0
+end
+
+define load
+  if (errjmp_bad)
+    echo sorry, errjmp_bad\n
+  else
+    call scm_ldfile($arg0),(void)0
+  end
+end
+
+define eval
+  if (errjmp_bad)
+    echo sorry, errjmp_bad\n
+  else
+    print scm_evstr($arg0)
+    scm $
+  end
+end
+
+define car
+  print ((cell*)(~1L & $))->car
+end
+document car
+CAR of $
+end
+
+define cdr
+  print ((cell*)(~1L & $))->cdr
+end
+document cdr
+CDR of $
+end