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Message-ID: | <43721D0A.6FE21267@dessent.net> |
Date: | Wed, 09 Nov 2005 08:00:10 -0800 |
From: | Brian Dessent <brian AT dessent DOT net> |
MIME-Version: | 1.0 |
To: | gcc AT gcc DOT gnu DOT org |
CC: | cygwin AT cygwin DOT com |
Subject: | Re: i686-pc-cygwin crash gcc-4.0 branch |
References: | <43719C3D DOT 9070804 AT bellsouth DOT net> <4371A589 DOT D62D704E AT dessent DOT net> |
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Reply-To: | cygwin AT cygwin DOT com |
Brian Dessent wrote: > > /home/sherlock/gcc/o/gcc/xgcc -B/home/sherlock/gcc/o/gcc/ > > -B/usr/local/i686-pc-c > > ygwin/bin/ -B/usr/local/i686-pc-cygwin/lib/ -isystem > > /usr/local/i686-pc-cygwin/i > > nclude -isystem /usr/local/i686-pc-cygwin/sys-include -DHAVE_CONFIG_H > > -I. -I../. > > ./../../gcc-4_0-branch/libstdc++-v3/libmath -I.. -O2 -g -O2 -c > > ../../../../gcc-4 > > _0-branch/libstdc++-v3/libmath/signbit.c -o signbit.o > > In file included from > > ../../../../gcc-4_0-branch/libstdc++-v3/libmath/signbit.c: > > 32: > > ../../../../gcc-4_0-branch/libstdc++-v3/libmath/mathconf.h:167: error: > > conflicti > > ng types for 'ieee_double_shape_type' > > It looks like what is happening is BYTE_ORDER isn't getting defined > correctly. This is supposed to be taken care of by the sys/param.h > header of the target, which Cygwin does provide correctly. It looks > like for some reason gcc isn't picking this up in your case. Are you > doing a native or a cross? What configure options are you using? This is caused by this change: <http://sources.redhat.com/cgi-bin/cvsweb.cgi/src/winsup/cygwin/include/endian.h.diff?r1=1.3&r2=1.4&cvsroot=src&f=h>. This modified include/endian.h to only conditionally define BYTE_ORDER etc. if __USE_BSD is defined, whereas before in newlib's machine/endian.h <http://sources.redhat.com/cgi-bin/cvsweb.cgi/src/newlib/libc/include/machine/endian.h?rev=1.2&content-type=text/x-cvsweb-markup&cvsroot=src> they were defined unconditionally. Thus if you build gcc with the 1.5.18 version of cygwin and its headers you don't run into this, but if you try to use a snapshot that contains this change you get the above error. Brian -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/
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