Re: [Ekiga-devel-list] Tarball generation issues

["Peter Robinson" <pbrobinson gmail com>]

>>>>> Also when doing the library check I get the following opal error if
>>>>> the speex libs aren't installed (should it not be checking for
>>>>> speex?).
>>>>>
>>>>> checking for PTLIB... yes
>>>>> checking for OPAL... configure: error: Package requirements (opal >=
>>>>> 3.4.2) were not met:
>>>>>
>>>>> Package speexdsp was not found in the pkg-config search path.
>>>>> Perhaps you should add the directory containing `speexdsp.pc'
>>>>> to the PKG_CONFIG_PATH environment variable
>>>>> Package 'speexdsp', required by 'opal', not found
>>>>>
>>>>> Consider adjusting the PKG_CONFIG_PATH environment variable if you
>>>>> installed software in a non-standard prefix.
>>>>>
>>>>> Alternatively, you may set the environment variables OPAL_CFLAGS
>>>>> and OPAL_LIBS to avoid the need to call pkg-config.
>>>>> See the pkg-config man page for more details.
>>>>
>>>> What happens is that opal asks, through its pkg-config file, that
>>>> libspeex-dev be installed when another package depending on opal, such
>>>> as ekiga, is configured.  This is an error (not -dev, but the library is
>>>> needed), but I do not know how to solve it for the moment.
>>>
>>> Are we sure it is an error ?
>>>
>>> I would have supposed it was a feature of pkgconfig. Anyway, what is
>>> sure is that it is not ekiga's job to request speexdsp, so if anything
>>> has to be fixed, it is in opal.pc.
>>>
>>> And what I don't understand is that I do not get this error, however,
>>> speexdsp.pc is not on my system !?
>>
>> Weird, I had to scratch my head for a sec as I had opal-devel
>> installed, but not speex devel.
>
> If you have libspeex-dev installed when configuring opal, then opal.pc will
> contain:
>  Requires: ptlib speexdsp
> This means that libpt-dev and libspeexdsp-dev must be installed when
> configuring a program which uses opal.pc, such as ekiga.
>
> However, this is wrong, because ekiga program does not need libspeex-dsp,
> but libspeex.
>
> I do not know how to impose to a program to require a library (not its
> headers) through pkg-config (but it might exist somehow).
>
> I repeat: the question is: how opal can tell ekiga that libspeex (not -dev)
> is needed in order to use opal?

Surely most of that should be handled by the packaging system. EG
using rpms in Fedora when a library (opal) is built against another
library (speex) the dependancy is created so if you install ekiga it
will pull in opal and then speex if its not installed. I'm pretty sure
that's how most other packages deal with that. No idea how its handled
with debs or anything else though.

Peter