[Gnash-dev] beginner debugging questions

[dww]

Is it possible to directly attach the gdb debugger(with insight) to
icecat to debug gtk-gnash. If yes, how do I do it> Or does one have to
always get the url to the swf file using say PageInfo|Media and
separately run gtk-gnash with gdb?

Second question: where are the environment variables (such as
GNASH_PLAYER or GNASH_OPTIONS) stored for gnash, the ones that the NPAPI
plugin reads via Plugin.cpp?

Thanks
Dennis