CEDET

emacs writes:
> I'm trying to setup CEDET with example files (including GNU global
> database files created by gtags program) so that my colleagues can test
> drive cedet and other elisp tools.  Some people have gtags in their
> path, but some don't.  So if those without gtags in their PATH loads one
> of my C++ file with associated GNU global database files, then cedet
> seems to detect the database files and tries to run 'global' program to
> parse them.  If my colleagues without gtags in their PATH tries out my
> examples, cedet signals error when it fails to launch 'global'.

Only having the Global database file(s) in the project shouldn't by
itself lead to CEDET trying to actually use it. You still have to
explicitly activate it by using

(semanticdb-enable-gnu-global-databases 'some-language-mode)

If you really see that CEDET calls global although the above line was
not called, then I think that would be a bug, but at the moment I cannot
see that behavior. Do you also provide special init files for CEDET for
your colleagues? If so, I think you should check for global there.

-David

On 10/18/2011 04:05 PM, David Engster wrote:
> emacs writes:
>> I'm trying to setup CEDET with example files (including GNU global
>> database files created by gtags program) so that my colleagues can test
>> drive cedet and other elisp tools.  Some people have gtags in their
>> path, but some don't.  So if those without gtags in their PATH loads one
>> of my C++ file with associated GNU global database files, then cedet
>> seems to detect the database files and tries to run 'global' program to
>> parse them.  If my colleagues without gtags in their PATH tries out my
>> examples, cedet signals error when it fails to launch 'global'.
>
> Only having the Global database file(s) in the project shouldn't by
> itself lead to CEDET trying to actually use it. You still have to
> explicitly activate it by using
>
> (semanticdb-enable-gnu-global-databases 'some-language-mode)
>
> If you really see that CEDET calls global although the above line was
> not called, then I think that would be a bug, but at the moment I cannot
> see that behavior. Do you also provide special init files for CEDET for
> your colleagues? If so, I think you should check for global there.

I'm worried that a silent ignore would give folks a false sense of 
success when trying ti get gnu-global support working.

Perhaps the best solution for a generic installation is:

(if (cedet-gnu-global-version-check t) ; dont error
    (semanticdb-enable-gnu-global-databases ...


and thus not install anything if it isn't there.

Eric