ok , thx mates ...
But my problems are not ended

I\'ve set $CRYSTAL and $CEL ... but now when i run pssetup :
( with -verbose )
root@caffeina:/usr/local/src/my_planeshift/planeshift# ./pssetup -verbose
Warning: Failed to load `soft3d\'; reason(s):
DLERROR (soft3d): /usr/local/src/my_planeshift/CS/soft3d.so: undefined symbol: csDetectCPU
Warning: Failed to load `soft3d\'; reason(s):
DLERROR (soft3d): /usr/local/src/my_planeshift/CS/soft3d.so: undefined symbol: csDetectCPU
WARNING: could not load plugin \'crystalspace.graphics3d.software\'
Warning: Failed to load `cspngimg\'; reason(s):
/usr/local/src/my_planeshift/CS/cspngimg.so: File not found
/usr/local/src/my_planeshift/CS/lib/cspngimg.so: File not found
./cspngimg.so: File not found
/usr/local/src/my_planeshift/planeshift/cspngimg.so: File not found
Warning: Failed to load `cspngimg\'; reason(s):
/usr/local/src/my_planeshift/CS/cspngimg.so: File not found
/usr/local/src/my_planeshift/CS/libcspngimg.so: File not found
/usr/local/src/my_planeshift/CS/lib/cspngimg.so: File not found
/usr/local/src/my_planeshift/CS/lib/libcspngimg.so: File not found
./cspngimg.so: File not found
./libcspngimg.so: File not found
/usr/local/src/my_planeshift/planeshift/cspngimg.so: File not found
/usr/local/src/my_planeshift/planeshift/libcspngimg.so: File not found
WARNING: could not load plugin \'crystalspace.graphic.image.io.png\'
aws-debug: Couldn\'t find iGraphics2D plugin!!
Couldn\'t load iGraphics3D plugin!
Error initializing system!
... so seems a libpng problem ... So I\'ve run configure-jam again to see if libpng was found ... but not ... :
checking for libz... yes
checking for libpng... no
checking for libjpeg... yes
checking for libmng... yes
checking for libmikmod... yes
checking for libogg... yes
checking for libvorbis... yes
checking for libvorbisfile... yes
checking for lib3ds... no
checking for libode... no
checking for OpenAL... no
and why this ?
It\'s just there !
root@caffeina:/usr/local/src/my_planeshift/CS# ls /usr/lib/libpng*
/usr/lib/libpng.a@ /usr/lib/libpng12.a
/usr/lib/libpng.so@ /usr/lib/libpng12.so@
/usr/lib/libpng.so.3@ /usr/lib/libpng12.so.0@
/usr/lib/libpng.so.3.1.2.5* /usr/lib/libpng12.so.0.1.2.5*
*sigh*
Ah ! and another thing ... the link to \"guide to compilation for linux\" is not working ...
thx all
ciao