Multiple use of '--configure' (-C) cancels the previous '-C'

[gst]

Hi,

after having had to play with -C to add rpath AND unicode=ucs4 I realized that pythonz treats the --configure argument as a "single one" : that is the last provided -C on the command line take over all previous one. When I tried the first times I used many -C and only realized later that only the last one is accounted for.

I would have assumed they would sum up / concatenate.. (or otherwise print at least a warning about the fact that they aren't).

I think it's safe to make it so that multiple provided -C arguments would concatenate / append ?