Text 7592, 47 rader
Skriven 2006-10-02 22:20:46 av Kenneth Parrish (8:8/2)
   Kommentar till text 7571 av Maurice Kinal (1:140/13.1)
Ärende: Re: Versioning (and CC, CFLAGS, etc)
============================================
-=> Maurice Kinal wrote to Kenneth Parrish <=-

:-)
hi, been out of town for a couple o' days

 MK>>     export CFLAGS="-Os -march=i386"   # optimize for size
 KP> with gcc4.1(experimental) i've generally omitted -mtune and -march
 KP> for the cyrix mii

 MK> Yes but on a 64-bit machine where 32-bit is also native further
 MK> control over configuration and building is most definetly
 MK> required, especially if targetting another machine.  Most of
 MK> the time it doesn't matter but in this case it is mission
 MK> critical.
ok, that's about what i thought  :)

 KP> -m32 hasn't seemed to make a difference here.

 MK> It shouldn't since your native gcc is 32-bit so specifying it
 MK> is redundant.  It makes a HUGE difference to a bootstrapped gcc
 MK> on a system where both 32-bit and 64-bit are native along with
 MK> the -m64 switch.
sure, seems as expected, pretty much :)_ i tried for a ttylinux i386 iso.gz at
my friends with internet, but we lacked a gunzip for it.  i figured the linux
kernel's optional transparent gzip decompression probably does not work with
bootable cd's.. does it?

 MK>>     export CFLAGS="-Os -march=k8" # optimize for size
 MK>>     export TARGET="x86_64-unknown-linux-gnu" # should run on any
 MK>> x86_64
 KP> does /etc/config.site need a "TARGET", maybe?

 MK> Not unless you want to change it when targetting different
 MK> systems.  On my 64-bit machine I have it setup so that
 MK> i686-pc-linux-gnu is the host for 32-bit builds and
 MK> x86_64-unkown-linux-gnu is the host for 64-bit.  However they
 MK> are both the exact same gcc.  This bootstrapped gcc is special.
 MK>  :-)
nice  :)

... There's a whistle up above and people push and people shove.  -- BTO 1977
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