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From: Pieter de Goeje <pieter@degoeje.nl>
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Date: Wed, 9 Dec 2009 17:03:25 +0100
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Subject: Re: RELENG_8 buildworld broken?
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On Wednesday 09 December 2009 01:50:03 Pieter de Goeje wrote:
> I've blown away /usr/obj, checked out a fresh source tree, but no luck:
>
> cc -O2 -pipe  -DHAVE_GTHR_DEFAULT -DIN_GCC -DIN_TARGET_LIBS -I.
> -I/data/FreeBSD/FreeBSD-8.x/src/gnu/lib/libobjc/../../usr.bin/cc/cc_tools
> -I/data/FreeBSD/FreeBSD-8.x/src/gnu/lib/libobjc/../../../contrib/libobjc/ob
>jc -I/data/FreeBSD/FreeBSD-8.x/src/gnu/lib/libobjc/../../../contrib/libobjc
> -I/data/FreeBSD/FreeBSD-8.x/src/gnu/lib/libobjc/../../../contrib/gcc/config
> -I/data/FreeBSD/FreeBSD-8.x/src/gnu/lib/libobjc/../../../contrib/gcc
> -I/data/FreeBSD/FreeBSD-8.x/src/gnu/lib/libobjc/../../../contrib/gcclibs/in
>clude -fexceptions -frandom-seed=RepeatabilityConsideredGood -std=gnu99
> -fstack-protector  -c
> /data/FreeBSD/FreeBSD-8.x/src/gnu/lib/libobjc/../../../contrib/libobjc/enco
>ding.c In file included from ./tm.h:4,
> from
> /data/FreeBSD/FreeBSD-8.x/src/gnu/lib/libobjc/../../../contrib/libobjc/enco
>ding.c:34: ./options.h:457: error: redeclaration of enumerator 'OPT_Werror'
> ./options.h:398: error: previous definition of 'OPT_Werror' was here
> *** Error code 1
>
> Stop in /data/FreeBSD/FreeBSD-8.x/src/gnu/lib/libobjc.
> *** Error code 1
>
> When trying to build on:
> FreeBSD 8.0-STABLE #9: Tue Dec  1 21:48:13 CET 2009     amd64

The problem only occurs when doing a parallel make world (make -j8 
buildworld). In the past I have always successfully built world using -j4. I 
guess the recent upgrade of this machine from dual core to quad core just 
made the problem visible.

- Pieter