Date: Mon, 31 Dec 2018 11:15:29 -0500 From: Pedro Giffuni <pfg@FreeBSD.org> To: sgk@troutmask.apl.washington.edu Cc: freebsd-numerics@freebsd.org Subject: Re: New math library from ARM Message-ID: <79234b63-8443-cc47-0ef7-27a6317a56c4@FreeBSD.org> In-Reply-To: <20181231151904.GB823@troutmask.apl.washington.edu> References: <797a7755-db93-1b9c-f3b9-8850d948e098@FreeBSD.org> <20181231151904.GB823@troutmask.apl.washington.edu>
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On 12/31/18 10:19 AM, Steve Kargl wrote: > On Mon, Dec 31, 2018 at 10:06:57AM -0500, Pedro Giffuni wrote: >> Hi; >> >> Just noted a recent initiative from musl-libc: >> >> https://www.openwall.com/lists/musl/2018/12/08/1 >> >> It appears they plan to replace their (FreeBSD) math code with a new ARM >> implementation: >> >> https://github.com/ARM-software/optimized-routines >> > The Copyright on this code is unclear. For example, in > single/e_rem_pio2.c lines 1-6: > > /* > * e_rem_pio2.c > * > * Copyright (c) 1999-2018, Arm Limited. > * SPDX-License-Identifier: MIT > */ > > Then lines 16-18: > > /* > * Simple cases: all nicked from the fdlibm version for speed. > */ > > The original fdlibm licenses applies ot the nicked lines. > They should have kept the original headers. That is why I personally dislike the idea of replacing licenses with SPDX tags. We should probably report that upstream :(. FWIW, they had originally adopted an Apache License and later they relicensed it under MIT, apparently with the idea of assigning the result to the FSF. Pedro.
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