Date: Thu, 24 Mar 2011 03:52:18 +0300 From: Yuri Pankov <yuri.pankov@gmail.com> To: freebsd-current@freebsd.org Subject: clang'ed buildworld is failing with -O0 Message-ID: <20110324005218.GA3074@darklight.org.ru>
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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
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