Date: Sat, 24 Jan 2009 17:43:57 +0000 From: RW <rwmaillists@googlemail.com> To: freebsd-questions@freebsd.org Subject: Re: default CFLAGS Message-ID: <20090124174357.4aafcf1a@gumby.homeunix.com> In-Reply-To: <497B2536.7030907@pp.dyndns.biz> References: <Pine.LNX.4.64.0901241734020.6296@localhost> <20090124124535.3006687c@gumby.homeunix.com> <9a52b1190901240451i14dc544fm1c241d6f43fa897b@mail.gmail.com> <20090124131629.1f9fabe4@gumby.homeunix.com> <497B2536.7030907@pp.dyndns.biz>
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On Sat, 24 Jan 2009 15:27:02 +0100 Morgan Wesström <freebsd-questions@pp.dyndns.biz> wrote: > The section "options enabled" will list them all. I usually only add > "-march=native" to my CFLAGS to enable a few more CPU specific > optimizations. If you set CPUTYPE, -march is set to match, so setting -march=native should be redundant. OTOH a number of other make variables are defined from CPUTYPE, so if you set -march=native, but not CPUTYPE you might miss some optimisations based on build options. I've no idea whether there are any such options, just that you're probably not going to do better than setting CPUTYPE, and leaving the rest alone.
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