Build Question: How to Add -Wl,--option Before Objects In Setup.py?

[Cyd Haselton]

I need to add a linker option to the command(s) run by setup.py when
building various objects.  I'm not familiar with Python at all, so I
basically copied and modified a line from one area of the script to
another


ext_modules=[Extension('_struct', ['_struct.c'], extra_link_args =
['Wl,--allow-shlib-undefined'])],
                     *snip*

Unfortunately this seems to append the option to the end of the
command line.  What's the best (fastest) way to add it before the
object being built (objectname.o)?