[Dev-luatex] Question: Have any Windows users managed to build 0.80?

Hi All Just a quick question to other Windows users. Using MinGW32 and Windows 7 (64-bit) I can build LuaTeX version 0.79.3.1 without any problems but version 0.8 will not build. Luigi very provided some suggestions offline but before I spend time delving into darker corners (well, dark to me anyway ;-)) I wondered if anyone else has managed to build 0.80 on Windows --- i.e., if it is something odd about my setup? As noted, version 0.79.3.1 builds without any problem. Thanks in advance. All best wishes Graham