[maemo-developers] openobex and bluetooth problem, Maemo 4.1.2

[From: Christian Kuersteiner]

Johan Hedberg wrote:
> Hi,
> 
> On Tue, May 26, 2009, Christian Kuersteiner wrote:
>> Has anybody some experience with libopenobex and bluetooth? Is it 
>> possible that bluetooth is not supported with the openobex library for 
>> maemo?
> 
> You can use the maemo libopenobex with Bluetooth but you need to use
> FdOBEX_TransportSetup and give it a connected RFCOMM socket. The BtOBEX*
> functions are not available in the maemo version of openobex since
> including them would mean linking with libbluetooth which in turn would
> mean that libopenobex (and all applications linked to it) would become GPL
> (instead of LGPL which is its intended license).

Perfect! That's the information I was missing. It works with 
FdOBEX_TransportSetup as intended. I didn't think that the license  may 
have an influence. Also I didn't found any information related to the 
usage of FdOBEX_TransportSetup with libopenobex when using with bluetooh 
in the reference manual for maemo 4.1 nor on any other places I was 
looking. Did I miss something?

>>  From googling about I saw that this is normally a problem with not 
>> giving the library to the linker. But I give the parameters "-lgwobex 
>> -lglib-2.0 -lopenobex" which are needed for libgwobex and the linker 
>> doesn't complain that there is not such a library. May somebody give me 
>> a hint what is going wrong and where I might look for a solution? I am 
>> sure it is a probably stupid error in my setup but I just get out of ideas.
> 
> It's a long time since I last did anything with gwobex, but the provided
> pkg-config files should contain the right compiler and linker options.
> Your issue might also be something C++ specific (I noticed your .cpp
> suffix) which I know very little about. You might also want to take a look
> at osso-obc which is a command line obex client that uses gwobex:
> https://stage.maemo.org/svn/maemo/projects/connectivity/osso-obc/trunk/

Yes, I know that it's not quite common to program in C++ for the tablet 
... Anyway I will check osso-obc and see if I find a solution, although 
since libopenobex is working I prefer to use the it directly.
Thanks a lot Johan! You safed my enthusiasm for maemo programming ;-)

Chris