[mythtv-users] MythVideo v0.16 doesn't compile

[Ian Collington]

Mike Isely wrote:

>On Fri, 3 Dec 2004, Ian Collington wrote:
>
>  
>
>>Mike Isely wrote:
>>
>>    
>>
>>>On Fri, 3 Dec 2004, Ian Collington wrote:
>>>
>>>      
>>>
>
>   [snip...]
>
>  
>
>>>>Anyone have any ideas?
>>>>
>>>>I get the same problem on normal and root user.
>>>>
>>>>
>>>>
>>>>        
>>>>
>>>Those are all standard ANSI C functions defined in math.h.  Is that header
>>>somehow not being included?
>>>
>>> -Mike
>>>
>>>
>>>
>>>
>>>------------------------------------------------------------------------
>>>
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>>>mythtv-users at mythtv.org
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>>>
>>>
>>>      
>>>
>>I'm not a C/C++ person. How can I check?
>>
>>I have GCC v3.4.1 and I'm using Mandrake 10.1 Official.
>>    
>>
>
>Find where videogallery.cpp exists and try this command from the shell
>when in its directory:
>
>grep math.h videogallery.cpp
>
>That should tell you if it's there.  But even if it isn't, this still
>isn't definitive, since videogallery.cpp might include a header which then
>might include math.h.  Or... it might be there, but surrounded by an ifdef
>that's causing the compiler to skip it...
>
>Another possibility (though remote) is that math.h might be there but is
>missing a 'extern "C"' wrapper since I presume videogallery.cpp is C++
>source.  But that would be nuts since all ANSI headers should handle C++
>correctly.
>
>I only just joined this mailing list a few days ago (and wow there is a
>lot of traffic here!) and have _ZERO_ experience compiling mythtv.  I have
>gobs of other software experience, but I'm probably the wrong person to
>suggest a deep dive into this particular problem.  I only made that
>comment from the perspective of an experienced C/C++ programmer who
>recognized those missing functions.
>
>Somebody else here can / should probably give a simple explanation for why
>math.h (apparently) isn't being seen in that file.
>
>  -Mike
>
>
>  
>
Thankyou very much for your help Mike.

I could not find any reference to math.h in the cpp or header files. I 
added #include <math.h> to the videogallery.cpp file to see what would 
happen and it worked!

Many thanks,

Ian