Re: make_ctags: use -I option to ignore pg_node_attr macro

> Does is make sense to change make_etags as the attached patch does?
> This allows make_etags to use etags if Exuberant-type ctags is not
> available. This allows users to use make_etags if hey has either
> Exuberant-type ctags or etags.

The patch drops support for "-n" option :-<

Attached is the patch by fixing make_ctags (make_etags is not
touched).

If Exuberant-type ctags is available, use it (not changed).
  If Exuberant-type ctags is not available, try old ctags (not changed).
    If the old ctags does not support "-e" option, try etags (new).
      If etags is not available, give up (new).

Best reagards,
--
Tatsuo Ishii
SRA OSS LLC
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