Should I upgrade to GCC 4.1.1?

sonicbhoc · Posted: Fri Aug 18, 2006 10:08 pm Post subject: Should I upgrade to GCC 4.1.1?

Well, I added ACCEPT_KEYWORDS="~x86" and did emerge -e world. It's emerging GCC 4.1.1. Should I let it keep it or stop it? And, if I let it emerge GCC 4.1.1, do I have to emerge -e world again? It took forever the first time <_<

expat_iain · Guru Joined: 09 Jan 2004 Posts: 361 Location: Malta GC

I'd suggest such an action is asking for trouble. GCC 4.x has issues with some packages and performing that action on a running system will most likely introduce all kinds of problems.

Archangel1 · Veteran Joined: 21 Apr 2004 Posts: 1212 Location: Work

I've found it to be quite stable, so yes. I don't see any reason to make an exception in package.keywords or something to hold it back.
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sonicbhoc · Posted: Fri Aug 18, 2006 11:26 pm Post subject:

What I meant to ask was if it was worth compiling everything all over again if I do upgrade GCC 4.1.1, considering I just went through emerging everything ~x86 (emerge -e world with GCC 3.something). If I upgraded to GCC 4.1.1, I'd have to emerge -e world. Again. I don't think it's worth it, and I'm just getting a second opinion. I'm still going to install GCC 4.1.1 because it's close to finished installing but I am wondering if, after I use it, if it's worth recompiling world. Again.

Gergan Penkov · Posted: Sat Aug 19, 2006 12:40 am Post subject:

posts like this could make you re-think your stance

https://forums.gentoo.org/viewtopic-t-489954-highlight-.html
other than that gcc-4.1.1 is quite stable.
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Akkara · Posted: Sat Aug 19, 2006 12:46 am Post subject:

Yes or No, depending

There was a similar thread about this topic.

I am running a mostly stable amd64 system. I had copied my system to some spare partitions and tried there to see what happens. I had upgraded to gcc 4.1.1 (it also needed 2 other things from testing which I had unmasked).

It mostly seems to work, and work well.

There's a few packages that don't compile. These are the ones I noticed:
media-plugins/swh-plugins-0.4.11
media-sound/jamin-0.9.0-r1
media-sound/rosegarden-4.1.0-r1
media-sound/rezound-0.12.2_beta-r1
app-accessibility/speech-tools-1.2.3-r3
app-accessibility/festival-1.4.3-r4
media-sound/freqtweak-0.6.0-r2
sci-astronomy/celestia-1.3.2
media-sound/smurf-0.52.6
media-gfx/blender-2.41
dev-libs/boehm-gc-6.5

Additionally there's two packages that don't work once recompiled with 4.1.1:

media-gfx/gimp-2.2.12 (dumps core in initialization, cursory investigation with gdb seems to indicate its in a pthread glibc call at the time)

media-sound/grip-3.3.0 (quits without any messages after the 1st track is ripped just as it's about to fire up the flac encoder.)

So, it all depends on, whether you need any of the above (or perhaps some other package that also doesn't compile which I don't use).

If you can try it on a spare partition that would be the best then you can decide which you like more. Although, it sounds like you're already 1/2 way into it.

Oh, I'm using sys-libs/glibc-2.3.6-r4 with gcc 4.1.1. I heard somewhere that glibc-2.4 has its issues but I haven't tried that myself yet.

Good luck!

sonicbhoc · Posted: Sat Aug 19, 2006 12:55 am Post subject:

Well, I thought the installation was almost done. That was 2 hours ago <_<

Anyway, now I'm pretty sure it's almost done. I may as well just let it finish compiling and recompile world. After all, it's not like I need this thing up and running any time soon.

0x001A4 · Posted: Sat Aug 19, 2006 2:44 am Post subject:

bladus · Apprentice Joined: 27 Jul 2005 Posts: 233

I've been using GCC 4.1.1 since it entered ~testing, no problems so far - even an emerge -e world went fine several times

tabanus · l33t Joined: 11 Jun 2004 Posts: 638 Location: UK

OtonVM · Posted: Sat Aug 19, 2006 11:12 am Post subject:

I've always been running an ~x86 system on amd64 and gcc4 since it came as an update and all is working with no problems. I don't have any extreme cflags though... I guess those might break something.

masterdriverz · Posted: Sat Aug 19, 2006 11:39 am Post subject:

tabanus · l33t Joined: 11 Jun 2004 Posts: 638 Location: UK

Halcy0n · Posted: Mon Aug 21, 2006 5:21 pm Post subject:

I've been using gcc-4.1 for quite some time now. Everything should compile that is in ~arch, and if it doesn't, file a bug (first check to make sure there isn't a bug open already). If you want to upgrade, which I think you should do

, follow the guide:

http://www.gentoo.org/doc/en/gcc-upgrading.xml
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sonicbhoc · Posted: Mon Aug 21, 2006 6:51 pm Post subject:

Well it doesn't matter now, I scrapped that install. I needed something up and running fast for an event (Family Day Festival in Hartford Connecticut) so I slapped PCLinuxOS on it... again... It's a really great distro for noobs so, after loosing my Windows disk, I gave it out in Family Day to 8 lucky people (one of which is my pastor). Next time I'll build my own distro of Linux specifically for Family Day, maybe based either on Gentoo or PCLinuxOS. But, that's for another topic. :p

Well, I know what I messed up (emerge GCC first, then rebuild the toolchain, then rebuild the toolchain again, then continue with the installation, make sure -X is in the useflags until X is actually installed, etc) so I won't make the same mistakes again.

Dralnu · Veteran Joined: 24 May 2006 Posts: 1919

Cutting to the chase, since I just did this myself:

fluxbox doesn't compile.
About (this is a random amount) 1/4 of ebuilds won't compile, but the very base system seems to work fine, but thats my experiance.

Its a fun thing to do, but if you're afraid of breaking things, then don't.
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tsunam · Retired Dev Joined: 23 Feb 2004 Posts: 343

fluxbox does compile, I can confirm this as I've been running it on at least one of my boxes that uses fluxbox for months now, Its also been used to help patch things that don't compile with gcc-4.1.1. There should be very few packages that don't have a version that compiles with gcc-4.1.1, we're currently working on getting those versions stable to procede with getting gcc 4 stable. As well, most people who I've seen with ruined systems went from glibc-2.4 to 2.3 which is known to break things on the way back pretty badly. Its really a one way process with the glibc upgrade.
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bdm · Posted: Mon Aug 21, 2006 7:54 pm Post subject:

After reading this thread, I've decided to upgrade to GCC 4.1 tomorrow while I'm at work. Are there any chances that this could break my system?

Thank you.

playfool · Posted: Mon Aug 21, 2006 8:00 pm Post subject:

Dralnu · Veteran Joined: 24 May 2006 Posts: 1919

Dralnu · Veteran Joined: 24 May 2006 Posts: 1919