On Fri, Jun 14, 2002 at 04:25:15AM -0400, Jeremy Hylton wrote:
> MS> Cool. But my module consists of several .c files, how do I
> MS> specify which .o files depend on which .h files?
>
> I did something simpler, as Guido mentioned. I added global
> dependencies for an extension. This has been fine for all the
> extensions that I commonly build because they have only one or several
> source files. Recompiling a few .c files costs little.
>
> I agree that it would be nice to have fine-grained dependency
> tracking, but that costs more in the implementation and to use.
> Thomas Heller has a patch on SF (don't recall the number) that handles
> per-file dependencies. I didn't care for the way the dependencies are
> spelled in the setup script, but something like the dict that Martin
> (the other Martin, right?) suggested seems workable.
Extension('foo', ['foo1.c', 'foo2.c'], dependencies={'foo1.c':
['bar.h'], 'foo2.c': ['bar.h', 'bar2.h']})
That's what I suggested, is that what you meant?
> MS> Now, it's a shame I have to maintain compatability with the
> MS> Python 2.1 and Python 2.2 distributions in my setup.py ;)
> MS> I suppose I could try/except...
>
> We should come up with a good hack to use in setup scripts. This is
> my first try. It's got too many lines, but it works.
>
> # A hack to determine if Extension objects support the depends keyword =
arg.
> if not "depends" in Extension.__init__.func_code.co_varnames:
> # If it doesn't, create a local replacement that removes depends
> # from the kwargs before calling the regular constructor.
> _Extension = Extension
> class Extension(_Extension):
> def __init__(self, name, sources, **kwargs):
> if "depends" in kwargs:
> del kwargs["depends"]
> _Extension.__init__(self, name, sources, **kwargs)
Eep :) Looks like it could work, yes, but I think I'll skip that one while
I'm still running Python 2.2. :)
Cheers,
Martin
--
Martin Sjögren
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