GNU Global support requires version 5.9

[rinon]

It seems that GNU Global support doesn't work over TRAMP... gtags-cscope works fine locally, but when I set the active directory to the same project (with a GTAGS file) remotely no results are returned.

I'll try to dig down into this later when I have some time, but I wanted to at least make a note here in the mean time.

[dkogan]

Stephen Crane notifications@github.com writes:

It seems that GNU Global support doesn't work over TRAMP...
gtags-cscope works fine locally, but when I set the active directory
to the same project (with a GTAGS file) remotely no results are
returned.

I'll try to dig down into this later when I have some time, but I
wanted to at least make a note here in the mean time.

Hi. I just tested this and it works fine, so there's something odd about
your particular situation. I'm happy to help you debug.

• Does plain cscope work over TRAMP (i.e. does your issue apply only to
  GNU Global)?
• What does "doesn't work" mean?

[rinon]

Thanks so much for the quick response, guess it's on my end. Yes, cscope works fine. I don't see any results for any searches when using global instead of cscope.

It looks like this is a version problem. Remote Ubuntu has global version 5.7.1, while locally I have 6.3.1. I'm assuming 5.7.1 is too archaic to be compatible? After playing with this some more, I noticed that emacs shows an error that gtags-cscope can't take both -s and -r options.

Sorry to bother you, I'll update the remote global and I'm guessing that will resolve this.

[rinon]

Yep, that was it. Since xcscope uses both -s and -r at the same time, it requires at least Global version 5.9 (https://lists.gnu.org/archive/html/info-global/2010-06/msg00000.html).

[dkogan]

Stephen Crane notifications@github.com writes:

Yep, that was it. Since xcscope uses both -s and -r at the same time,
it requires at least Global version 5.9
(https://lists.gnu.org/archive/html/info-global/2010-06/msg00000.html).

OK, good to know. GNU Global 5.9 is ancient, so I think this is fine. I
do know that Debian ships an ancient version of GNU Global, and this is
the issue you hit. The Global maintainer really needs to come to some
sort of an agreement with the Debian maintainer, however for this to be
fixed.

dima