[Pythonmac-SIG] Static Linking...

[Chris Barker - NOAA Federal]

As a side note to the main thread about dependencies:

How can  I static link?

I"ve struggled for literally years to get gcc to statically link, but
it tries really hard to dynamically link instead. I have written way
too many scripts that move or re-name dynamic libs temporarily while
building, then put them back after.

Then a colleague of mine showed me the really neat trick -- pass the
paths to the libs themselves through to gcc with "extra_objects"
keyword in the Extension object, like so:

extra_objects = ["libhdf5.a", "libhdf5_hl.a", "libnetcdf.a"]

extensions = [Extension("netCDF4",
                        sources,
                        libraries=libs,
                        include_dirs=inc_dirs,
                        extra_objects=extra_objects,
                        )]

very nifty -- works like a charm.

However, when I do this, I had to re-write part of the setup.py --
actually, making it far more simple -- in this case, there was a lot
of machinations finding the libs...

But Ideally, I"d ;like to build a semi-arbitrary extension with static
linking while using the existing setup.py. Is there a way to
minkey-path the setup, so I can use the existing one, but re-shuffle
it some in place before the actual build occurs?

-Chris




-- 

Christopher Barker, Ph.D.
Oceanographer

Emergency Response Division
NOAA/NOS/OR&R            (206) 526-6959   voice
7600 Sand Point Way NE   (206) 526-6329   fax
Seattle, WA  98115       (206) 526-6317   main reception

Chris.Barker at noaa.gov