Date: Sun, 23 Mar 2014 15:16:40 +0100 From: Schaich Alonso <alonsoschaich@fastmail.fm> To: Dimitry Andric <dim@FreeBSD.org> Cc: Ivan Klymenko <fidaj@ukr.net>, freebsd-stable@freebsd.org, Jakub Lach <jakub_lach@mailplus.pl> Subject: Re: HEADS UP: merged llvm/clang 3.4 Message-ID: <20140323151640.6171e5c118f7dd26e0b7fc88@fastmail.fm> In-Reply-To: <58EBBC17-5D32-47FA-8220-50F0872E0787@FreeBSD.org> References: <0E7E81A1-54E9-4920-A360-005A1C0C4D47@FreeBSD.org> <20140322154403.GK43653@albert.catwhisker.org> <E168E301-D0A9-4DBB-B2FA-4F7E670F03A3@FreeBSD.org> <20140322203226.GO43653@albert.catwhisker.org> <1395566978437-5896805.post@n5.nabble.com> <20140323124007.18989498@nonamehost.local> <20140323131820.ea5227052253a4f8e6b5c80d@fastmail.fm> <58EBBC17-5D32-47FA-8220-50F0872E0787@FreeBSD.org>
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On Sun, 23 Mar 2014 14:58:19 +0100 Dimitry Andric <dim@FreeBSD.org> wrote: > On 23 Mar 2014, at 13:18, Schaich Alonso <alonsoschaich@fastmail.fm> wrote: > > On Sun, 23 Mar 2014 12:40:07 +0200 > > Ivan Klymenko <fidaj@ukr.net> wrote: > > > >> В Sun, 23 Mar 2014 02:29:38 -0700 (PDT) > >> Jakub Lach <jakub_lach@mailplus.pl> пишет: > >> > >>> Well, speaking of strangeness, I cannot build kernel on amd64. > >>> > >>> cc -O2 -pipe -I. -I/usr/src/sys/dev/aic7xxx/aicasm -std=gnu99 > >>> -Wsystem-headers -Werror -Wall -Wno-format-y2k -W > >>> -Wno-unused-parameter -Wstrict-prototypes -Wmissing-prototypes > >>> -Wpointer-arith -Wreturn-type -Wcast-qual -Wwrite-strings -Wswitch > >>> -Wshadow -Wunused-parameter -Wcast-align -Wno-pointer-sign -c > >>> aicasm_gram.c aicasm_gram.c:2:19: error: unused variable 'yysccsid' > >>> [-Werror,-Wunused-const-variable] > >>> static const char yysccsid[] = "@(#)yaccpar 1.9 (Berkeley) > >>> 02/21/93"; ^ > >>> 1 error generated. > >>> *** Error code 1 > >>> > >>> Stop. > >>> make[2]: stopped in /usr/obj/usr/src/sys/GENERIC > >>> *** Error code 1 > >>> > >>> Stop. > >>> make[1]: stopped in /usr/src > >>> *** Error code 1 > >>> > >> > >> I have the exact same problem... > > > > As a workaround, you can avoid this by inserting > > > >> NO_WERROR= > >> WERROR= > > > > into src.conf. > > Aha, now I get it. You seem to be building stable/9 from a stable/10 or > newer host, which contains a newer version of yacc? Apparently it > inserts an unused banner into the produced parser, which clang then > complains about. > > The best solution is obviously to remove the banner, which is now being > checked with the upstream yacc maintainer. Since people will be stuck > with the "wrong" version of yacc for some time, I guess the easiest way > is to disable warnings for aicasm for now. > > It is not as if anybody cares about warnings in aicasm; it has already > been removed in head. :-) > > -Dimitry > Actually I was building 10-STABLE from a 2 week older snapshot of 10-STABLE. The workaround is indeed from the FreeBSD-9 times' wiki article of building FreeBSD with clang, however I remembered those yacc statements to already have caused trouble in the past, so I look-up-ed the old articles and found this. Alonso
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