[PD] pd-extended build on 9.10 /gem 0.92.1 eeepc = no luck with v4l2

[Hans-Christoph Steiner]

On Nov 4, 2009, at 5:40 PM, IOhannes m zmölnig wrote:

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> olsen wrote:
>> thanks hans for this indication
>> this is the correct flag to compile it with v4l2?!
>> --with-libv4l2-includes=/usr/lib/libv4l2.so
>
> hmm, the ..-includes flag is meant for adding _include_ directives to
> the compiler rather than libraries for the linker.
>
> try something like
> "--with-libv4l" and/or "--with-libv4l2" and you should be done if  
> libv4l
> is properly installed.
>
>
>> the package builts but still i'm gettin
>> error: [pix_video]: could not find a backend for driver 'v4l2'
>>
>> i also tried a gem solo & make spits this error:
>> recordQT4L.cpp -o ../Objects/recordQT4L.o
>> recordQT4L.cpp: In function ‘lqt_file_type_t guess_qtformat(const  
>> char*)’:
>> recordQT4L.cpp:96: error: invalid conversion from ‘const char*’ to  
>> ‘char*’
>> make[1]: *** [recordQT4L.o] Error 1
>> make[1]: Leaving directory `/home/olsen/pd/pd-extended/Gem/src/Pixes'
>> make: *** [Pixes] Er
>
> yah, this is dues to an overly pedantic compiler (or probably: invalid
> headers: the line the error is referring to is (here; but i might  
> have a
> different version :-)) using the (const char*) argument to
> guess_qtformat() as input for strchr(). according to my man-pages,
> strchr() indeed takes (const char*) rather than (char*). if this is
> indeed the problem, just add a cast to (const char*) to the call of
> strchr(), and file a bug-report to ubuntu that they are shipping  
> broken
> headers)

FYI, I think all new versions of gcc are this pedantic.

.hc

>
>
>>
>> same with gem 0.92-1
>> recordQT4L.cpp: In function ‘lqt_file_type_t guess_qtformat(const  
>> char*)’:
>> recordQT4L.cpp:96: error: invalid conversion from ‘const char*’ to  
>> ‘char*’
>> make[1]: *** [recordQT4L.o] Error 1
>> make[1]: Leaving directory `/home/olsen/pd/extra/0.92-1/Gem/src/ 
>> Pixes'
>> make: *** [Pixes] Error 2
>>
>>
>> with gem0.92svn i stuck at the configure:
>> ./configure: line 3005: syntax error near unexpected token `PIC,'
>> ./configure: line 3005: `GEM_ARG_ENABLE(PIC,      
>> PositionIndependentCode
>> (potentially slower))'
>
> you did run ./autogen.sh, did you?
>
>
> mfgasr
> IOhannes
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