On Thu, Dec 10, 2015 at 07:46:51AM +0100, Stefan G. Weichinger wrote > Am 10.12.2015 um 05:50 schrieb waltd...@waltdnes.org: > > > CFLAGS="-O2 -march=native -fomit-frame-pointer -pipe -fno-unwind-tables > > -fno-asynchronous-unwind-tables" > > > > That's what I use, except for cross-compiling. For an explanation of > > the "unwind" flags, see thread... > > http://comments.gmane.org/gmane.linux.busybox/36695 from the busybox > > mailing list. And don't forget CPU_FLAGS_X86. Emerge and run > > app-portage/cpuinfo2cpuflags as soon as you can during the install > > process. I believe that's right after running "eselect profile". And > > then run "emerge system && emerge world". It's a lot quicker when you > > don't have very much installed on the machine. > > did not know that tool, thanks. > Will try on my existing box already. > > Do I have to set that variable then (in make.conf?) ?
Yes, you should. While you're at it, you can remove the corresponding flags from the USE= variable. I don't know if they're honored by portage any longer. I assume you missed the news item back in January. It's archived and you can read it at... https://www.gentoo.org/support/news-items/2015-01-28-cpu_flags_x86-introduction.html -- Walter Dnes <waltd...@waltdnes.org> I don't run "desktop environments"; I run useful applications
