Which version of GCC to use: an example

[Bob Gustafson]

Frank:
I wasn't subscribed until now, so I missed your reply to my original post

On 21 Feb 2002 10:30:58 +0100 Frank Schafer wrote:
> On Thu, 2002-02-21 at 08:46, Bob Gustafson wrote:
>> My goal was to compile and install prcs-1.3.1  (a new source code
>> control system)
>>
>> I started out with gcc version 2.96 which is the stock version supplied
>> with RedHat 7.2 (for i686-pc-linux-gnu)
>
>There never was a 2.96 release of GCC. This branch was only for
>development. If RedHead ships broken compilers with it's release,
>RedHead users have to live with this -- haven't they ;-) ?

I had heard of some controversy about RH's choice of compilers, but now
have switched to 2.95.3

>
>> I thought it might be a problem with the compiler, so I downloaded and
>> installed gcc-3.0.3 and reconfigured and compiled prcs
>> (files expanded fresh from tar.gz).
>
>Me too took gcc-3.0.3 last week, to set it up as a secondary compiler
>but I don't have much luck with it. To say the thruth - I havent much
>time just now for such an experiment.
>
>> Finally, I installed gcc version 2.95.3  (2.95.3 20010315 (release)) and
>> this worked fine.
>
>I've already built whole systems with this version. If you have
>glibc-2.2.x you'll need the gcc-2.95.3-2.patch.

Looking in the build directory for gcc, I see a ./install/glibc-2.2.patch -
I assume that it was applied (??) during the gcc build process (??).

How do I tell for sure? (gcc-2.95.3 was built from source files on this
machine)

It looks like I do have the glibc-2.2.4 (see below)

[user1@hoho0 user1]$ /lib/libc.so.6
GNU C Library stable release version 2.2.4, by Roland McGrath et al.
Copyright (C) 1992-1999, 2000, 2001 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.
There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A
PARTICULAR PURPOSE.
Compiled by GNU CC version 2.96 20000731 (Red Hat Linux 7.1 2.96-97).
Compiled on a Linux 2.4.7-6smp system on 2001-09-04.
Available extensions:
        GNU libio by Per Bothner
        crypt add-on version 2.1 by Michael Glad and others
        The C stubs add-on version 2.1.2.
        linuxthreads-0.9 by Xavier Leroy
        BIND-8.2.3-T5B
        NIS(YP)/NIS+ NSS modules 0.19 by Thorsten Kukuk
        Glibc-2.0 compatibility add-on by Cristian Gafton
        libthread_db work sponsored by Alpha Processor Inc
Report bugs using the `glibcbug' script to <bugs@gnu.org>.
[user1@hoho0 user1]$

>
>> I don't know if there are bugs in the compiler(s) or bugs in prcs-1.3.1,
>> but this might be a regression test to pass for the newer compilers.
>
>The task for you to find out.
>
>> PCRS can be obtained at  http://sourceforge.net/projects/prcs
>>
>
>BTW: What's so wrong with CVS?

Nothing too much, but I like to try something new from time to time. I have
CVS, but don't use it enough for my own stuff. Perhaps PCRS will fit in
more naturally. Or, maybe I can just script it to do what needs to be done
automatically.  I only need it for backup and to keep my toes from being
shot off.
>
>Regards
>Frank