--- a/libcruft/mkf77def.in	Wed Jan 26 23:15:59 2011 -0500
+++ b/libcruft/mkf77def.in	Wed Jan 26 23:49:42 2011 -0500
@@ -3,17 +3,17 @@
 # Copyright (C) 2006-2011 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 3 of the License, 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, see
 # <http://www.gnu.org/licenses/>.
@@ -53,6 +53,7 @@
 do
   case "$arg" in
     *.f)
+      ## There are TABS in this sed command.
       $SED -n -e 'y/ABCDEFGHIJLKMNOPQRSTUVWXYZ/abcdefghijlkmnopqrstuvwxyz/; s/^\(      \|	\)[ 	]*\(.*function\|subroutine\|entry\)[ 	]*\([^ 	(]*\).*$/\3/p' "$srcdir/$arg" | eval $awkcmd
     ;;
   esac