GCC 4.5 testing

kernelOfTruth · Posted: Fri Jan 21, 2011 9:16 pm Post subject:

any news on openoffice / libreoffice being compiled with

graphite and/or flto and fwhole-program ?
_________________
Unofficial minimal livecd x86/amd64 w/reiser4+truecrypt (by Neo2)
2.6.37.2_plus_v1: BFS, CFS,THP,compaction, zcache or TOI
Hardcore Linux user since 2004

Letharion · Veteran Joined: 13 Jun 2005 Posts: 1216 Location: Sweden

I've built libreoffice with

kernelOfTruth · Posted: Sun Jan 23, 2011 6:29 pm Post subject:

Tolstoi · l33t Joined: 20 May 2004 Posts: 631

Last weekend I began using the lto and graphite use flags with these cflags +flto

CFLAGS="-march=native -O2 -pipe -floop-interchange -floop-strip-mine -floop-block"
CXXFLAGS="${CFLAGS}"

After a few errors I removed flto and lto and everything compiled fine. The only problem I have now is that firefox and thunderbird as well as firefox-bin and thunderbird-bin segfault when starting the applications.

I followed a hint in another thread and compiled firefox, thunderbird and xulrunner with safe cflags but that didn't solve this issue either.

kernelOfTruth · Posted: Tue Feb 01, 2011 2:41 pm Post subject:

ecko · n00b Joined: 04 Jul 2010 Posts: 42

Hello, I'm interested in testing if the graphite flags improve performance of a few apps in science overlay, but not necessarily for world. Is it safe to recompile gcc with the +graphite USE and not use the -floop-* flags ? I would change the CFLAGS only when compiling something on my list. Or maybe there is a better way to get two separated profiles ?

cruzki123 · Apprentice Joined: 16 May 2008 Posts: 230

There is no problem at all in use the graphite flags in ALL packages in world from my experiences. If you want to use only on a certain packages, you can safetly compile gcc with graphite and only enable when you want.

dirtyepic · Developer Joined: 22 Oct 2004 Posts: 1626 Location: sk.ca

the graphite USE flag pulls in the needed dependencies. if you don't use the graphite (-floop-*) flags then there is no difference.
_________________
by design, by neglect
for a fact or just for effect

mantoo · Posted: Sat May 28, 2011 12:50 pm Post subject:

is there any news on this?

Thistled · Guru Joined: 06 Jan 2011 Posts: 433 Location: Scotland

Am I doing something wrong with GCC-4.5.* ?
It seems some - but not all - packages fail to build.
It's the same if I use GCC-4.6.*

Let me see if I am doing this right.....
I upgade GCC, then select the new one using

aCOSwt · Posted: Tue Oct 02, 2012 12:51 pm Post subject:

Thistled · Guru Joined: 06 Jan 2011 Posts: 433 Location: Scotland

It's possible that.....
by not

Thistled · Guru Joined: 06 Jan 2011 Posts: 433 Location: Scotland

Seems I was right. I forgot to env-update, and that is why many packages were failing.
Now if only portage could have reminded me about that.
All seems well now.
_________________
Whatever you do, do it properly!