$OpenBSD: patch-libcruft_mkf77def_in,v 1.2 2008/01/21 18:30:13 steven Exp $
--- libcruft/mkf77def.in.orig	Sat Oct 13 03:42:21 2007
+++ libcruft/mkf77def.in	Sat Dec 29 17:24:23 2007
@@ -43,4 +43,8 @@ else
   awkcmd="$AWK '{ printf (\"%s%s\n\", tolower (\$0), \"$uscore\"); }'"
 fi
 
-$SED -n -e 'y/ABCDEFGHIJLKMNOPQRSTUVWXYZ/abcdefghijlkmnopqrstuvwxyz/; s/^\(      \|	\)[ 	]*\(.*function\|subroutine\|entry\)[ 	]*\([^ 	(]*\).*$/\3/p' | eval $awkcmd
+#$SED -n -e 'y/ABCDEFGHIJLKMNOPQRSTUVWXYZ/abcdefghijlkmnopqrstuvwxyz/; s/^\(      \|	\)[ 	]*\(.*function\|subroutine\|entry\)[ 	]*\([^ 	(]*\).*$/\3/p' | eval $awkcmd
+perl -pi \
+  -e 's/([A-Z])/\l\1/g;' \
+  -e 's/^\s+(.*function|subroutine|entry)\s*([^\s(]*).*$/\2/ or $_=undef' | \
+ eval $awkcmd