In scons yes, since it is rather more sophisticated than other systems in that regards.Actually, those are for non-directory flags, e.g. debugging, optimization etc. scons uses CPPPATH and LIBPATH for the search paths.
Well, you can't do that, because you can't pass arguments multiple timesBTW, apparently Options is deprecated and one is supposed to use Variables instead. There is a ListVariable which might be able to do the right thing (allow a list of validated directories), but I can't really tell from the documentation as it is exceedingly minimal.to scons, but as of r554 it will accept 'include' and 'lib' options to add to the include and library paths respectively. If you want to add multiple directories, you can join them with the ':' character (';' on Windows) as per usual.
Anyway, this is a good step. Thanks.