Re: Help required to upgrade gcc

["wp" <qwertygd at wp dot pl>]

Hi
I instal another gcc. And now I have two gcc ( gcc 4.0.1 and 4.2.0) instaled

But when I try change default gcc by: update-alternatives --config gcc i 
have the answer:
There is only 1 program which provides gcc
(/usr/bin/gcc-4.0.1). Nothing to configure.

I install another gcc folow this step:
./configure --prefix=/usr --sysconfdir=/etc --localstatedir=/var --program-suffix=-4.2.0

make

make check-gcc

make install



What I do wrong ?

Any sugestions ?


Thanks for help

Martek


----- Original Message ----- 
From: "Tom Browder" <tom.browder@gmail.com>
To: <gcc-help@gcc.gnu.org>
Cc: "wp" <qwertygd@wp.pl>
Sent: Thursday, April 03, 2008 1:16 PM
Subject: Re: Help required to upgrade gcc


> On Thu, Apr 3, 2008 at 5:46 AM, Rupert Wood <me@rupey.net> wrote:
> > Marek wrote:
> ...
> >  To overwrite your existing GCC system you need to use "--prefix=/usr" on 
> > the compile
>
> I have used multiple versions of gcc for years (mostly under
> redhat/fedora) and have had good luck with installing a new version
> under the default /usr/local but using the configure option
> '--program-suffix=-X.Y.Z' where the 'X.Y.Z' is the version number.
>
> Then i can use 'gcc-X.Y.Z' or the default 'gcc' as desired, and I've
> never had any conflicts beteen the various versions.
>
> -Tom
>
> P.S.  And as Rup mentioned, I NEVER build in the gcc source directory.