Re: portability of build?

Am 09.03.25 um 04:31 schrieb Xi Ruoyao ([email protected] via
lfs-support Mailing List):
> On Sat, 2025-03-08 at 20:40 +0100, Thomas Seeling wrote:
> 
> /* snip (*/
> 
>> I wanted to install additional software like grub for UEFI, unzip and 
>> nfs-utils (with dependencies) and I noticed 2 problems: gcc stops 
>> compiling unzip source code with "illegal opcode".
> 
> It's because GMP was built with optimizations specifically to the
> current processor.
> 
> The book clearly says:
> 
>    The default settings of GMP produce libraries optimized for the host
>    processor. If libraries suitable for processors less capable than the
>    host's CPU are desired, generic libraries can be created by appending
>    the --host=none-linux-gnu option to the configure command.
> 
> 
> Please don't skip any book text.  We don't add a paragraph of text into
> the book for no reason.
Please, show some lenience.  Transferring a system to another machine
probably comes long after the initial build and notes on libffi and gmp
might be forgotten at that point.  But perhaps it might help to
explicitly mention libffi and gmp (and Qt?) in the note in ch. "8.2.3.
Deploying LFS on Multiple Systems".

Rainer

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