Hi,

As it's entirely possible for users to pair the upcoming gcc-13 with one 
of the older glibc versions, it may be prudent to backport at least the 
following commits so builds won't fail in such cases:

  * 3e5760fcb4 ("Update _FloatN header support for C++ in GCC 13")
  * ba70f69598 ("Fix iseqsig for _FloatN and _FloatNx in C++ with GCC 13")
  * f66780ba46 ("Fix build with GCC 13 _FloatN, _FloatNx built-in
    functions")

Thanks!

(P.S. I don't have glibc commit rights so someone else would have to 
commit for me. Sorry about that.)

-- 
WANG Xuerui
xen0n@gentoo.org
Gentoo Linux developer
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