Is there some way to get flexlay I have download the latest version with subversion and try to install it but it just says

linus@ubuntuLinus:~/program/trunk$ scons
scons: Reading SConscript files ...
scons: done reading SConscript files.
scons: Building targets ...
g++ -g3 -O0 -Wall -fPIC -I. -I/usr/include/ClanLib-0.7 -c -o lib/bitmap_layer.o lib/bitmap_layer.cxx
lib/bitmap_layer.cxx: In constructor `BitmapLayerImpl::BitmapLayerImpl(CL_PixelBuffer)':
lib/bitmap_layer.cxx:71: error: no matching function for call to `CL_Surface::CL_Surface(CL_PixelBuffer&)'
/usr/include/ClanLib-0.7/ClanLib/GL/../Display/surface.h:142: note: candidates are: CL_Surface::CL_Surface(const CL_Surface&)
/usr/include/ClanLib-0.7/ClanLib/GL/../Display/surface.h:140: note: CL_Surface::CL_Surface(const std::string&, int)
/usr/include/ClanLib-0.7/ClanLib/GL/../Display/surface.h:138: note: CL_Surface::CL_Surface(const std::string&, CL_ResourceManager*)
/usr/include/ClanLib-0.7/ClanLib/GL/../Display/surface.h:134: note: CL_Surface::CL_Surface(CL_PixelBuffer*, bool, int)
/usr/include/ClanLib-0.7/ClanLib/GL/../Display/surface.h:129: note: CL_Surface::CL_Surface()
lib/bitmap_layer.cxx: In constructor `BitmapLayerImpl::BitmapLayerImpl(int, int)':
lib/bitmap_layer.cxx:84: error: no matching function for call to `CL_Surface::CL_Surface(CL_PixelBuffer)'
/usr/include/ClanLib-0.7/ClanLib/GL/../Display/surface.h:142: note: candidates are: CL_Surface::CL_Surface(const CL_Surface&)
/usr/include/ClanLib-0.7/ClanLib/GL/../Display/surface.h:140: note: CL_Surface::CL_Surface(const std::string&, int)
/usr/include/ClanLib-0.7/ClanLib/GL/../Display/surface.h:138: note: CL_Surface::CL_Surface(const std::string&, CL_ResourceManager*)
/usr/include/ClanLib-0.7/ClanLib/GL/../Display/surface.h:134: note: CL_Surface::CL_Surface(CL_PixelBuffer*, bool, int)
/usr/include/ClanLib-0.7/ClanLib/GL/../Display/surface.h:129: note: CL_Surface::CL_Surface()
lib/bitmap_layer.cxx: In member function `void BitmapLayer::set_pixeldata(CL_PixelBuffer)':
lib/bitmap_layer.cxx:183: error: no matching function for call to `CL_Surface::CL_Surface(CL_PixelBuffer&)'
/usr/include/ClanLib-0.7/ClanLib/GL/../Display/surface.h:142: note: candidates are: CL_Surface::CL_Surface(const CL_Surface&)
/usr/include/ClanLib-0.7/ClanLib/GL/../Display/surface.h:140: note: CL_Surface::CL_Surface(const std::string&, int)
/usr/include/ClanLib-0.7/ClanLib/GL/../Display/surface.h:138: note: CL_Surface::CL_Surface(const std::string&, CL_ResourceManager*)
/usr/include/ClanLib-0.7/ClanLib/GL/../Display/surface.h:134: note: CL_Surface::CL_Surface(CL_PixelBuffer*, bool, int)
/usr/include/ClanLib-0.7/ClanLib/GL/../Display/surface.h:129: note: CL_Surface::CL_Surface()
scons: *** [lib/bitmap_layer.o] Error 1
scons: building terminated because of errors.
linus@ubuntuLinus:~/program/trunk$

Please I really need help