It should have been removed in 10.1, and in 11.0 there should have been
"the version of LFS has switched to a merged-/usr layout". But we just
forgot to update this all the time :).
Now adjusting.xml only serves as a historical reference, and a "snip
library" for gcc.xml. Put all relevant content into gcc.xml directly
and remove adjusting.xml. If someone needs a historical reference, he
can always get adjusting.xml in Git history.
This is the issue preventing us from cross-compiling libstdc++ in
Chapter 6. By fixing this issue we can remove a seperate pass 2 for
libstdc++ and simplify the instruction.
The upstream fix will be released in 11.3 and 12.0, so we can remove the
first sed upgrading gcc next time.
on the systems without non-loopback IP address
We'd observed this long ago with "unknown reason". I just saw it again
and did some investigation, found it depends on getaddrinfo() with
AI_ADDRCONFIG, which requires a non-loopback address.
A requirement on Glibc is not needed at all. It's enough once
$LFS_TGT-* is runnable. A test on Alpine (using musl as libc) has
practically proved this.
We'd raised binutils and GCC requirements mostly for Glibc. But now
Glibc is cross compiled by our cross toolchain with latest GCC and
binutils release, the host tools really does not matter. In the Glibc
building process only two .c files are build with BUILD_CC (the C
compiler from the host), and they are highly conservative (mostly
unchanged for years).
Binutils does not have too much requirement on host GCC & Binutils:
there is even a Binutils commit in this week fixing a build failure with
GCC-4.2!
So the most strict limitation comes from GCC. GCC requires host GCC to
support ISO C++ 11 so GCC >= 4.8 is needed. And both GCC-4.8 and latest
GCC-11.2 claims a requirement for Binutils-2.12 (for x86_64) or 2.13.1
(for 32-bit x86), so we make minimal Binutils version 2.13.1.
And, host bzip2 is never used now: the only .tar.bz2 files are elfutils
and python docs. They are not decompressed before entering chroot.
