Maybe at some point, everybody should align on one set of building tools (autotools, scons or cmake) and that we have a clear, regular and documented for dummies path to build LyX across platforms and Linux distributions.
The documentation of scons is currently the best :-). INSTALL.Win32 by Joost and Uwe is clear for win/msvc. INSTALL.Scons for other platforms. Generally speaking, people use autotools for *nix, cmake for msvc/gui, scons for none (?), although scons is the only build system that builds under all platforms/compilers. Bo