I tried to compile DXFlib (http://www.ribbonsoft.com/dxflib_downloads.html ) on Ubuntu, and got warnings like these. ./src/dl_dxf.cpp (reading /usr/include/stdio.h, line 34): cannot find include file "stddef.h" not in ./src/stddef.h not in /usr/include/stddef.h There seems to dependency or path issue. Can I get help on compiling it. -- H.S.Rai