[Interest] more problems with virtual frame buffer

[Duane]

On 04/03/2012 09:35 AM, Harri Pasanen wrote:
> On 04/03/2012 03:16 PM, Duane wrote:
>> On 04/03/2012 09:09 AM, Thiago Macieira wrote:
>>> On terça-feira, 3 de abril de 2012 08.35.25, Duane wrote:
>>>> I've built a desktop version of 4.8.1 open source and I'm trying to make
>>>> the qvfb binary.  I get a series of errors involving png_*  like
>>>> png_structp does not name a type.
>>>>
>>>> I have png support built.  I have libpng installed.  I've seen a few
>>>> posts on the web with this same issue but no solution.  I'm using Fedora
>>>> 16.  My colleague using the latest Ubuntu doesn't have this issue.  What
>>>> am I missing?
>>> What is the exact error?
>> There are 57 or so.
>>
>> 'png_structp' does not name a type
>> 'png_infop'  does not name a type
>> 'png_structp' has not been declared
>> 'png_bytep' has not been declared
>> 'png_size_t' has not been declared
>
> What is the first error?   That is typically the interesting one.
>
> Looks like either some include is not picked up, or some define is
> missing, or variation of those. /usr/include/png.h should define it.
>
> In general you can corner missing defines by adding '-E' to gcc flags to
> just run the preprocessor. Direct the output to file and be amazed at
> how much stuff the compiler has to go through, and where the symbols
> come from.  grep mymissingsymbol /usr/include/* to see where it should
> come from.

Thanks.