I built the rc7 interpreter from source on mingw for Windows Vista 32-bit.
require works perfectly for Lua scripts, but on attempting require
"lfs", I get this error:
C:\Lua52beta-rc7\bin\lua52: multiple Lua VMs detected
stack traceback:
[C]: in ?
[C]: in function 'require'
test.lua:4: in main chunk
[C]: in ?
Exit code: 1
Usually this error has two causes: (1) you are mixing different
versions of Lua, or (2) you are mixing code that uses Lua as a DLL
with code statically linked with Lua (in Windows).
-- Roberto