From owner-freebsd-current@FreeBSD.ORG Thu Mar 24 00:52:21 2011 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 8AD86106566B for ; Thu, 24 Mar 2011 00:52:21 +0000 (UTC) (envelope-from yuri.pankov@gmail.com) Received: from darklight.org.ru (darklight.org.ru [IPv6:2001:470:28:4ba::1]) by mx1.freebsd.org (Postfix) with ESMTP id B67CE8FC15 for ; Thu, 24 Mar 2011 00:52:20 +0000 (UTC) Received: from darklight.org.ru (yuri@darklight.org.ru [IPv6:::1]) by darklight.org.ru (8.14.4/8.14.4) with ESMTP id p2O0qIMr035222 for ; Thu, 24 Mar 2011 03:52:18 +0300 (MSK) (envelope-from yuri.pankov@gmail.com) Received: (from yuri@localhost) by darklight.org.ru (8.14.4/8.14.4/Submit) id p2O0qIik035221 for freebsd-current@freebsd.org; Thu, 24 Mar 2011 03:52:18 +0300 (MSK) (envelope-from yuri.pankov@gmail.com) X-Authentication-Warning: darklight.org.ru: yuri set sender to yuri.pankov@gmail.com using -f Date: Thu, 24 Mar 2011 03:52:18 +0300 From: Yuri Pankov To: freebsd-current@freebsd.org Message-ID: <20110324005218.GA3074@darklight.org.ru> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.5.21 (2010-09-15) Subject: clang'ed buildworld is failing with -O0 X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 24 Mar 2011 00:52:21 -0000 Hi, I've recently tried to buildworld with clang using DEBUG_FLAGS=-g -O0 (as clang(1) specifies that -g is most useful with -O0). Short version: clang -O2 -pipe -I. -I/data/src/freebsd/base/head/usr.bin/xlint/lint1 -I/data/src/freebsd/base/head/usr.bin/xlint/lint1/../arch/amd64 -I/data/src/freebsd/base/head/usr.bin/xlint/lint1/../common -g -O0 -std=gnu99 -I/usr/obj/data/src/freebsd/base/head/tmp/legacy/usr/include -static -L/usr/obj/data/src/freebsd/base/head/tmp/legacy/usr/lib -o lint1 cgram.o scan.o mem1.o mem.o err.o main1.o decl.o tree.o func.o init.o emit.o emit1.o inittyp.o -ll -lm -legacy clang: warning: argument unused during compilation: '-g' clang: warning: argument unused during compilation: '-std=gnu99' /usr/lib/libc.a(isnan.o): In function `__isnanf': /data/src/freebsd/base/head/lib/libc/gen/isnan.c:52: multiple definition of `__isnanf' /usr/lib/libm.a(s_isnan.o):/data/src/freebsd/base/head/lib/msun/src/s_isnan.c:47: first defined here clang: error: linker command failed with exit code 1 (use -v to see invocation) Full build log (if it's useful, ~5MB): http://darklight.org.ru/misc/buildworld-clang-O0.txt Any hints on what I'm doing wrong? TIA, Yuri