[mythtv] Compiling mythtv and running without installing.

[John Drescher]

On Sat, Feb 25, 2012 at 8:10 PM, Jean-Yves Avenard <jyavenard at gmail.com> wrote:
> Hi
>
> On 26 February 2012 11:58, John Drescher <drescherjm at gmail.com> wrote:
>>> I compile mythtv like so:
>>>
>>> ./configure --prefix=/home/jyavenard/build --compile-type=debug
>>>
>>> I do make && make install as usual
>>>
>>> To run it:
>>>
>>> LD_LIBRARY_PATH=/home/jyavenard/build/lib
>>> /home/jyavenard/build/bin/mythfrontend
>>>
>>
>> Makes sense to me. Thanks.  I will try later.
>
> I know that some people will frown on me giving this info.. But this
> is the development mailing list, it supposes you know what you are
> doing
>
> However, if you are running a 0.24 production system, and want to
> compile master ; you may find yourself with an unworking system
> because the database schema has been updated...
>
> For such situation, I compile with:
> ./configure --prefix=/home/jyavenard/build --compile-type=debug
> --extra-cxxflags='-D IGNORE_SCHEMA_VER_MISMATCH
> -DIGNORE_PROTO_VER_MISMATCH'
>
> I mostly work with mythavtest for my purpose, so running a 0.25 build
> test against a 0.24 backend works fine.
> No so when running the fully fleged mythfrontend, LiveTV will not work
> at all and neither will playing recordings.
> But Videos work
>
> The configure command above ensure that no database will ever be
> upgraded when running the test system, and it won't error-out when
> running the test build and the version differs.
>

Good to know. And yes I do understand the implications of this. I have
a similar schema version / database upgrade system in my current
application (medical imaging research) at work. MythTV gave me the
idea to implement that. Anyways, at first I plan to look at a few
current issues I have with 0.24.2 however I may need this in the
future..

Thanks a lot,
John