I'm building LFS 8.1 on a Skylake CPU which I'd like to clone to an older slower Core 2.
I noticed this note about GMP: "The default settings of GMP produce libraries optimized for the host processor." Using the default configure settings in the summary of build options I see "Host type: skylake-pc-linux-gnu". I then see gcc is using "-mtune=skylake" when compiling the GMP library. Now if I use configfsf.guess as mentioned in the LFS book, it will build with "Host type: x86_64-pc-linux-gnu". So I've made a note to recompile GMP when I move it to the older system. Beyond GMP, is anyone aware of other LFS packages which, when using the default compilation options, could lead to binaries that are tightly coupled to the host build's processor? I'd like my build to be as generic as possible so that it can run on any other x86_64 system. czep -- http://lists.linuxfromscratch.org/listinfo/lfs-support FAQ: http://www.linuxfromscratch.org/blfs/faq.html Unsubscribe: See the above information page Do not top post on this list. A: Because it messes up the order in which people normally read text. Q: Why is top-posting such a bad thing? A: Top-posting. Q: What is the most annoying thing in e-mail? http://en.wikipedia.org/wiki/Posting_style
