bug#22947: 25.0.92; xref-find-definitions fails for Perl & etags

[Bob Rogers <rogers@modulargenetics.com>]

   From: Dmitry Gutov <dgutov@yandex.ru>
   Date: Wed, 9 Mar 2016 03:52:43 +0200

   Hi Bob,

   On 03/08/2016 08:27 PM, Bob Rogers wrote:

   > The bug is that, no matter how many perl_method_name definitions exist
   > in the TAGS file, xref-find-definitions won't find any of them, because
   > it's only looking for an exact match to what Perl considers the
   > package-qualified name, namely the "Perl::Package::perl_method_name" as
   > it appears in this TAGS line:
   >
   > 	sub perl_method_name ^?Perl::Package::perl_method_name^A23,321

   This seems to indicate a problem in etags. Were you using the "real" 
   etags, one that's developed and distributed together with Emacs? Did it 
   come with the development snapshot your bug report was sent from?

Yes, and yes.

   If so, please send a small sample of Perl code we can reproduce the 
   problem in.

Try this:

   1.  git clone git@github.com:rgrjr/meals.git

   2.  cd meals

   3.  etags *.pl

and then continue with step two in the original recipe.  (This is a
small hack; the clone should only be half a megabyte.)  You can try
M-. on parse_recipes (one definition) or add_ingredient (two
definitions).

					-- Bob