Problems compiling gcc 4.2.3

[Simba7]

This is rather recently since I compiled the same box 2 weeks ago and had to recompile it due to a hard drive problem..

I always have done a Stage1 with the System Rescue CD and it has worked in the past (even on my i586 systems), but now I'm getting these problems during the ./bootstrap.sh:

[alex.blackbit]

the version of gcc that is doing the compiling during this step seems to not support the warning option "-Wno-overlength-strings".
a (fully functional) gcc-4.2.3 does. well, something is wrong here, but of course you know that yourself.
i believe stage1 installs are unsupported now, maybe this is one reason for that.

[Simba7]

[Simba7]

Yep.. gcc 4.2.2 compiled just fine and 4.2.3 coughed up that error.. Looks like a problem within 4.2.3.

I'll compile 4.2.3 after the ./bootstrap.sh and see if it gives the same error. If not, it's off to emerge -e system.

[alex.blackbit]

well... okay. i believe the dev people use stage1 bootstraps to create install cd's and stuff (but i am not sure about that).
contact one of the devs about that (e.g. irc). since most people here in the forums don't do stage1 installations, irc would be a better place for your problem.

[Simba7]

Ok.. gcc 4.2.3 compiles fine after compiling 4.2.2 during the ./bootstrap.sh. I guess it doesn't like the 4.1.1 -> 4.2.3 jump for some reason.

So.. Basically change the 2007.0 profile (packages file) to compile =gcc-4.2.2 only (instead of >=sys-devel/gcc-3.3.4-r1). After that's completed, you can change it back so it'll compile gcc-4.2.3. This will probably change with the 2008 stage coming up.

So, this is how I've been compiling my systems (using ACCEPT_KEYWORDS="~x86"):

*Change /usr/portage/profiles/default-linux/x86/2007.0/packages for =gcc-4.2.2 only*
./bootstrap.sh
*Change the file back to >=sys-devel/gcc-3.3.4-r1*
emerge gcc
emerge expat
emerge readline
emerge --oneshot --nodeps gettext
emerge -C mktemp
emerge perl util-linux help2man
emerge -e system

..then follow the rest of the handbook.. There's no problems after this.

..and Alex.. there are at least 50 people here that still do stage1 builds.. I'm just trying to help them, too. I do agree that stage1 builds are for more advanced users.

[cheater1034]

Sorry for bumping an old thread, but now with gcc 4.1.2 bootstrapping to a newer toolkit (gcc 4.2+) won't work.

It gives the exact same error as gcc 4.1.2 does not support -wno-overlength.

Basically, the only fixes i see at the moment are:

1) The gentoo stages gcc 4.1.2 is built with the following patch:
http://www.linuxfromscratch.org/patches/hlfs/svn/gcc-4.1.2-Wno_overlength_strings-1.patch

(this won't happen as there won't be another official gentoo stage for a long while)

2) Don't use the warning flag -Wno-overlength-strings when building gcc 4.2.4/gcc 4.3.1 before the bootstrap.

Here's a patched overlay with gcc 4.2.4 and gcc 4.3.1, with similar patches respectively:
http://conrad.whitesouls.com/gcc.tar.bz2

This only affects stage1 installs planning to upgrade to gcc 4.2.x or gcc 4.3.1 during the bootstrap, how you would use it is

First, unmask the respective files, gcc 4.2 or gcc 4.3
Second, run USE="-* build" emerge =sys-devel/gcc-4.2.4 or =sys-devel/gcc-4.3.1-r1 (of course make sure you define the PORTDIR_OVERLAY)
Third, Delete the overlay (you won't need it any more)
Fourth, run bootstrap as normal and it will not fail
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