Re: [gentoo-user] How to properly change CFLAGS ?

[Stefan G. Weichinger]

Richard Fish schrieb:
> On 8/21/06, Stefan G. Weichinger <lists@×××××.at> wrote:
>> Do I have to do "emerge -e --newuse world" on my system or what else
>> would be needed?
>
> --newuse is not needed here.  "emerge -e world" will catch everything.

Got that from one of the zillions of howtos ...
Reading the manpage would have told me to drop --newuse, on the other
hand it doesn't seem to do harm here ...

>> I am not asking this to get the "best result" in terms of speed or
>> performance, but to make sure that I don't break my system (which has
>> been backed up, sure, thanks ...).
>
> Changing CFLAGS should not cause any breakage.  So the choice is
> entirely up to you whether you want to wait for an "emerge -e system"
> or "emerge -e world" to complete.  I would be tempted to just change
> the flags and hold off on recompiling everything until the next
> version of gcc comes out.

( ... "next version" in terms of minor- or major-version?)

I see the point in this. (AFAIK there is no way to break up "emerge -e
xy" into smaller pieces, something to do in several separated steps.
>From your posting I conclude that it also won't do any harm to re-emerge
selected parts with new CFLAGS?)

So does it make *any* sense to re-emerge stuff like OO.org or
Thunderbird? Maybe I will let my small distcc-cluster work on this ...
what else should it do? :-)

Apart from this I have enough computer-related experience to know that I
simply should be happy with the
luks-encrypted/cpufreq'ed/hibernating/etc. gentoo-system I now have at
hand, instead of spending numerous hours to gain minimal speedups.

And I am.

Thanks a lot, Stefan.

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