On 10/29/17 10:05 PM, DJ Lucas wrote:
On 10/29/2017 01:39 PM, Michael D. wrote:
On 10/29/17 2:04 PM, Axel wrote:
Dear all,
now I reached chapter6.20.
My host is an Aspire one with 4.9.0-4-amd64 and not very fast. But I
want to install LFS on this device finally.
I think about to use another device with with an amd64 processor as
well (Asus) to compile LFS and to shift the final OS to the old Aspire.
Hi Axel,
That shouldn't be a problem, but be sure to set the correct ARCH/CPU in
your C(XX)FLAGS to avoid the compiler to use/implement Instructions Sets
on the powerful computer, that isn't available on your target computer.
export CFLAGS="-march=<CPU of Target PC>"
export CXXFLAGS=$CFLAGS
f
Been a while since I've done anything like this...one other gotcha is
the final gmp build, make sure to copy config.fsf.
Reminded me of this command: gcc -v -march=native -Q --help=target
It'll give you a complete list of flags that's available/unavailable on
the Aspire CPU in question.
I figure (no guarantees given) that one could use that list in the
C(XX)FLAGS on the ASUS to make it match the Target CPU's capabilities.
./Michael
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