--with-arch=i486 (was Re: Merging the jh branch to trunk)

Matthew Burgess matthew at linuxfromscratch.org
Thu Sep 6 14:03:11 MDT 2007


On Thu, 06 Sep 2007 16:09:02 +1000, Greg Schafer <gschafer at zip.com.au> wrote:

> But getting back on topic, I personally don't buy any of the arguments for
> using `--with-arch=i486' listed in this ticket:

OK, as I also don't want to inflict default optimisation choices on LFSers I can see your point of view, Greg.  However, Glibc simply doesn't build on my x86 box without either passing "--with-arch=[>i386]" to GCC's configure command, or setting 'CC="gcc -march=[>i386]"' before Glibc's configure command.  So, for those who aren't well versed in toolchain intricacies (i.e. me), can someone explain what the advantages/disadvantages of each approach are?

Thanks.

Matt.



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