On Tue, Oct 6, 2015 at 10:10 AM, David Cournapeau <courn...@gmail.com> wrote: > > > On Tue, Oct 6, 2015 at 6:07 PM, Nathaniel Smith <n...@pobox.com> wrote: >> >> On Tue, Oct 6, 2015 at 10:00 AM, Antoine Pitrou <solip...@pitrou.net> >> wrote: >> > On Tue, 6 Oct 2015 09:40:43 -0700 >> > Nathaniel Smith <n...@pobox.com> wrote: >> >> >> >> If you need some npy_* function it'd be much better to let us know >> >> what it is and let us export it in an intentional way, instead of just >> >> relying on whatever stuff we accidentally exposed? >> > >> > Ok, we seem to be using only the complex math functions (npy_cpow and >> > friends, I could make a complete list if required). >> >> And how are you getting at them? Are you just relying the way that on >> ELF systems, if two libraries are loaded into the same address space >> then they automatically get access to each other's symbols, even if >> they aren't linked to each other? What do you do on Windows? > > > It is possible (and documented) to use any of the npy_ symbols from npymath > from outside numpy: > http://docs.scipy.org/doc/numpy-dev/reference/c-api.coremath.html#linking-against-the-core-math-library-in-an-extension > > The design is not perfect (I was young and foolish :) ), but it has worked > fairly well and has been used in at least scipy since the 1.4/1.5 days IIRC > (including windows).
Okay, so just to confirm, it looks like this does indeed implement the static linking thing I just suggested (so perhaps I am also young and foolish ;-)) -- from looking at the output of get_info("npymath"), it seems to add -I.../numpy/core/include to the compiler flags, add -lnpymath -L.../numpy/core/lib to the linker flags, and then .../numpy/core/lib contains only libnpymath.a, so it's static linking. -n -- Nathaniel J. Smith -- http://vorpus.org _______________________________________________ NumPy-Discussion mailing list NumPy-Discussion@scipy.org https://mail.scipy.org/mailman/listinfo/numpy-discussion