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Re: cross build gcc 4.0/4.1 fail

From: Jim Wilson <wilson at specifix dot com>
To: Cauchy Song <dongsheng dot song at gmail dot com>
Cc: gcc at gcc dot gnu dot org
Date: Wed, 12 Oct 2005 14:47:03 -0700
Subject: Re: cross build gcc 4.0/4.1 fail
References: <43487F8A.6060108@gmail.com>

Cauchy Song wrote:

i686-pc-mingw32-gcc -O2
...
/opt/cvs_work/gcc40-branch/gcc/libgcc2.c -o libgcc/./_muldi3.o
In file included from /opt/cvs_work/gcc40-branch/gcc/libgcc2.c:56:
/opt/cvs_work/gcc40-branch/gcc/libgcc2.h:34: warning: ignoring #pragma
GCC visibility
/opt/cvs_work/gcc40-branch/gcc/libgcc2.h:117: error: no data type for
mode `SC'

Perhaps you are using the wrong cross-compiler for this canandian cross build? You can check by adding -v to the above compiler command.

When building a canadian cross, you must use a cross compiler of the same gcc version. In this case, the i686-pc-mingw32-gcc must be built from the same gcc-4.0-branch sources you are using for the canadian cross build.

You should consider using --prefix options so that each gcc version gets installed in a different place. This will help avoid confusion about gcc versions. -- Jim Wilson, GNU Tools Support, http://www.specifix.com

References:
- cross build gcc 4.0/4.1 fail
  - From: Cauchy Song

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