On 10.10.2014 23:07, Matthew Brett wrote: > Hi, > > On Tue, Oct 7, 2014 at 5:13 PM, Julian Taylor > <jtaylor.deb...@googlemail.com> wrote: >> On 06.10.2014 18:54, Andrew Collette wrote: >>> Hi all, >>> >>> I am working with the HDF Group on a new open-source viewer program >>> for HDF5 files, powered by NumPy, h5py, and wxPython. On Windows, >>> since people don't typically have Python installed, we are looking to >>> distribute the application using PyInstaller, which embeds >>> dependencies like NumPy. Likewise for OS X (using Py2App). >>> >>> We would like to make sure we don't accidentally include >>> non-open-source components... I recall there was some discussion here >>> about using the Intel math libraries for binary releases on various >>> platforms. Do the releases on SourceForge or PyPI use any proprietary >>> code? We'd like to avoid building NumPy ourselves if we can avoid it. >>> >>> Apologies if this is explained somewhere, but I couldn't find it. >>> >>> Thanks! >>> Andrew Collette >> >> >> Hi, >> the numpy win32 binaries on sourceforge do not contain any proprietary >> code. They are build with mingw 3.4.5 and are using a f2c'd version of >> netlib blas and lapack which so far I know is public domain. >> I think the macos wheels on pypi are built using ATLAS but they do also >> contain libquadmath which is LGPL licensed. Its probably pulled in by >> fortran (could maybe be removed by a rebuild as neither blas nor numpy >> use it) > > > Julian - it would be good to remove libquadmath with a rebuild - any > pointers on how to do this? >
You'd probably have to rebuild gfortran with quadmath disabled. It is a configuration flag of the gcc build. Then rebuild the binaries with that toolchain. But I'm not convinced it needs to be removed. Is LGPL really a problem? As long as you don't static link it (and not also ship the objects) it should be fine also for commercial programs. Note that there is no -static-quadmath flag, most likely because it would allow accidental license violation. _______________________________________________ NumPy-Discussion mailing list NumPy-Discussion@scipy.org http://mail.scipy.org/mailman/listinfo/numpy-discussion
