[Bug dynamic-link/31676] Configuring with CC="gcc -march=x86-64-v3" --with-rtld-early-cflags=-march=x86-64 results in linker failure

["cvs-commit at gcc dot gnu.org" <sourceware-bugzilla@sourceware.org>]

https://sourceware.org/bugzilla/show_bug.cgi?id=31676

--- Comment #5 from Sourceware Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by H.J. Lu <hjl@sourceware.org>:

https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=46c999741340ea559784c20a45077955b50aca43

commit 46c999741340ea559784c20a45077955b50aca43
Author: H.J. Lu <hjl.tools@gmail.com>
Date:   Tue Apr 23 13:59:50 2024 -0700

    x86: Define MINIMUM_X86_ISA_LEVEL in config.h [BZ #31676]

    Define MINIMUM_X86_ISA_LEVEL at configure time to avoid

    /usr/bin/ld: â¦/build/elf/librtld.os: in function `init_cpu_features':
    â¦/git/elf/../sysdeps/x86/cpu-features.c:1202: undefined reference to
`_dl_runtime_resolve_fxsave'
    /usr/bin/ld: â¦/build/elf/librtld.os: relocation R_X86_64_PC32 against
undefined hidden symbol `_dl_runtime_resolve_fxsave' can not be used when
making a shared object
    /usr/bin/ld: final link failed: bad value
    collect2: error: ld returned 1 exit status

    when glibc is built with -march=x86-64-v3 and configured with
    --with-rtld-early-cflags=-march=x86-64, which is used to allow ld.so to
    print an error message on unsupported CPUs:

    Fatal glibc error: CPU does not support x86-64-v3

    This fixes BZ #31676.
    Reviewed-by: Sunil K Pandey <skpgkp2@gmail.com>

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