PTLib headers missing while compiling gnomemeeting

["Jean-Luc Coulon (f5ibh)" <jean-luc coulon wanadoo fr>]

Hi,

I get the following error :
checking for long... yes
checking size of long... 4
checking whether OS type is supported... yes
checking for PTLib includes...
checking for /usr/include/ptlib/pprocess.h... no
configure: error: You need PTLib's header files to build GnomeMeeting
make: *** [configure-work/main.d/gnomemeeting-0.98.5/configure]
							Erreur 1

I've a Debian sid system and I cannot figure out where to find the  
ptlib.

--
Regards
			- Jean-Luc