How to pass a pathlist in RUNTESTFLAGS?

[IainS]

Hi,

I want to do this:
	RUNTESTFLAGS="--target_board=unix/-foo/-bar/--sysroot=/path/to/ 
somewhere "

I've tried escaping the path with \ ' inverting the " and ' ..  all to  
no avail ..

  what gets passed is -foo -bar --sysroot= -mpath -mto -msomewhere ..

google hasn't helped..

anyone know what incantation I've missed?
cheers,
Iain