Date: Wed, 27 Jul 2005 12:01:05 -0500 From: Nikolas Britton <nikolas.britton@gmail.com> To: =?ISO-8859-1?Q?K=F6vesd=E1n_G=E1bor?= <gabor.kovesdan@t-hosting.hu> Cc: FreeBSD - Questions <freebsd-questions@freebsd.org> Subject: Re: FreeBSD 6 Message-ID: <ef10de9a050727100144fa2600@mail.gmail.com> In-Reply-To: <42E815EC.20309@t-hosting.hu> References: <ef10de9a05072613007ac60130@mail.gmail.com> <42E69B11.6070208@t-hosting.hu> <ef10de9a050726171649b6869@mail.gmail.com> <42E815EC.20309@t-hosting.hu>
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On 7/27/05, K=F6vesd=E1n G=E1bor <gabor.kovesdan@t-hosting.hu> wrote: > Nikolas Britton wrote: >=20 > >On 7/26/05, K=F6vesd=E1n G=E1bor <gabor.kovesdan@t-hosting.hu> wrote: > > > > > >>Nikolas Britton wrote: > >> > >> > >> > >>>Is it just me or is -O2 now the default for kernel builds? What about > >>>-Os, safe to use? > >>> > >>> > >>> > >>> > >>> > >>So is it for me. But if I specify some CFLAGS, for example -O3 > >>-march=3Dathlon64, the > >>building fails, but CFLAGS mustn't affect the kernel compiling process > >>afaik. There is > >>COPTFLAGS for that reason. I've also made a PR about this new, unwanted > >>behaviour, > >>but haven't got any answers so yet. > >> > >> > >> > > > >You are right, COPTCLAGS is for the kernel only. -O3 is not officially > >supported for CFLAGS or COPTFLAGS. If you use -O3 for CFLAGS it will > >break some ports. Also from my experience using anything higher then > >CPUTYPE=3Dp2 will break ports (like gstreamer). > > > >This is what I normally add to my make.conf file: > >CPUTYPE=3Dp2 > >CFLAGS=3D -Os -pipes > >COPTFLAGS=3D -Os -pipes > >#CXXFLAGS=3D don't remember what I set this too, don't use it a lot. > > > >If I want a port to build with different settings I just tell it to > >inline... make CPUTYPE=3Dp4 install clean etc. > > > > > > > Yes, I know -O3 isn't supported for either, but I didn't mean ports. The > kernel building > fails with this: > CFLAGS=3D-O3 -march=3Dathlon64 > #COPTFLAGS=3D-O3 -march=3Dathlon64 <-This is commenred out! > And this breaks the kernel compiling. See this: >=20 > http://www.freebsd.org/cgi/query-pr.cgi?pr=3D83995 Isn't their a way to overide any setting in make.conf by putting it ( -O flags ) inside the kernel config file, I seem to remember doing something like that in the passed. Or you could do it all inline again like: nice -20 make -j2 CYPUTYPE=3Dp4 "CFLAGS=3D -Os -pipe" KERNCONF=3DME_COLONEL buildkernel
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