$NetBSD: patch-ae,v 1.3 2015/06/08 16:47:54 taca Exp $

* Try load from PKG_SYSCONFDIR/dot.rd2rc.
* Depend on $0 strictly.

--- bin/rd2.orig	2015-06-04 13:21:12.000000000 +0000
+++ bin/rd2
@@ -67,6 +67,7 @@ output_file = nil
 output_index = nil
 out_code = nil
 from_rdo = nil
+sysconf = "@PKG_SYSCONFDIR@/dot.rd2rc"
 
 # user option
 $DEFAULT_FORMAT_LIB = "rd/rd2html-lib"
@@ -77,10 +78,10 @@ begin
     load "~/.rd2rc"
     #  STDERR << "#{$0}: loading ~/.rd2rc\n"
   else
-    load "rd/dot.rd2rc"
+    load sysconf
     #  STDERR << "#{$0}: loading rd/dot.rd2rc\n"
   end
-rescue
+rescue StandardError, LoadError
   load "rd/dot.rd2rc"
 end
 
@@ -161,8 +162,8 @@ ARGV.options do |q|
 end # OptionParser.new
 
 # require format lib implicitly
-if /rd2.+/ =~ File.basename($0, ".*").downcase
-  visitor_lib = "rd/" + $& + "-lib.rb"
+if /rd2[0-9]*([a-z-]+).*/ =~ File.basename($0, ".*").downcase
+  visitor_lib = "rd/rd2" + $1 + "-lib.rb"
   require visitor_lib
   require $RD2_Sub_OptionParser  if $RD2_Sub_OptionParser
   # make visitor