[mythtv-users] different versions on frontend and backend

[Michael T. Dean]

Robert Johnston wrote:

>On 30/10/05, Michael T. Dean <mtdean at thirdcontact.com> wrote:
>  
>
>>Andrew McNabb wrote:
>>Myth is not designed to allow the use of different versions of the
>>mythfrontend and mythbackend
>>
>Correct.
>
>>(note that both come from a single project
>>directory called "mythtv" and don't allow building the frontend without
>>the backend or vice versa).
>>
>Incorrect. You can pass --disable-frontend and/or --disable-backend if
>you want to make a FE-Only or BE-Only machine.
>
Yeah, if you don't want it to build.  Those are porting only 
options--they are /not/ valid options on Linux.  See 
http://svn.mythtv.org/trac/browser/trunk/mythtv/configure?rev=7650 lines 
2740 and 2747--and especially lines 2741 and 2748.

See also:
http://cvs.mythtv.org/trac/ticket/156
http://cvs.mythtv.org/trac/ticket/290
http://svn.mythtv.org/trac/ticket/491

>>As a matter of fact, the same applies to
>>mythplugins--you need the same version of mythplugins as the version of
>>mythtv.
>>    
>>
>That's also incorrect. MythPlugins have to be built against the same
>version of libMyth, but you can take an old version of the plugins
>source, as long as it's built against the same version of libMyth as
>the MythFrontend you are wanting to load them from.
>  
>
Unless there are changes that break compatibility.  This includes 
incompatible changes to the myth protocol version, the DB schema 
version, the libraries used by the plugins (i.e. 
http://svn.mythtv.org/trac/ticket/531 ), and ...

And, in /all/ cases, doing so is *not* a "supported" 
configuration--which was the point I was trying to make.  Unless, of 
course, you're volunteering to provide support for all possible version 
combinations users may wish to try.

Mike