Date: Thu, 5 Sep 2013 11:57:58 +0200 From: Baptiste Daroussin <bapt@FreeBSD.org> To: David Chisnall <theraven@FreeBSD.org> Cc: "freebsd-numerics@FreeBSD.org" <freebsd-numerics@FreeBSD.org>, "current@freebsd.org Current" <current@FreeBSD.org> Subject: Re: clang+libc++ using missing powl Message-ID: <20130905095758.GM82066@ithaqua.etoilebsd.net> In-Reply-To: <80062343-53CD-4CEF-9C47-3BF614DADB64@FreeBSD.org> References: <20130904223842.GB82066@ithaqua.etoilebsd.net> <80062343-53CD-4CEF-9C47-3BF614DADB64@FreeBSD.org>
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--wKTlTxfx0Fr6BT7S Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Thu, Sep 05, 2013 at 09:52:13AM +0100, David Chisnall wrote: > On 4 Sep 2013, at 23:38, Baptiste Daroussin <bapt@freebsd.org> wrote: >=20 > > As a result we have a lot of fallouts of ports complaining about: > > undefined reference to `powl' > >=20 > > It seems like libc++ is relying on a function we don't have yet in libm= , am I > > missing something? >=20 > I've attached a diff that I'd like to commit to msun that should allow th= ese things to link. This: >=20 > - Provides thin wrappers around the 8 missing libm functions that libc++ = exposes that just call the double versions >=20 > - Makes these weak references, so other libraries can replace them with m= ore precise versions if required >=20 > - On platforms where long double is greater precision than double (e.g. x= 86), it emits a linker warning when they are referenced >=20 > These can then be replaced by proper versions as they become available (a= t which point the linker warnings will go away). >=20 > David >=20 Thanks I'll test it on my next full run, probably tomorrow. regards, Bapt --wKTlTxfx0Fr6BT7S Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.19 (FreeBSD) iEYEARECAAYFAlIoVaYACgkQ8kTtMUmk6EzFngCgpwEpBxuR4Qo39E1pKx+SSaNm MFYAnjNp9LullZD6OhO5LzrVAUgGVrYD =kc4V -----END PGP SIGNATURE----- --wKTlTxfx0Fr6BT7S--
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