[Bug c/100854] TS 18661-3 and backwards-incompatible setting of __FLT_EVAL_METHOD__

[fxcoudert at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100854

Francois-Xavier Coudert <fxcoudert at gcc dot gnu.org> changed:

           What    |Removed                     |Added
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                 CC|                            |fxcoudert at gcc dot gnu.org

--- Comment #2 from Francois-Xavier Coudert <fxcoudert at gcc dot gnu.org> ---
This affects x86_64-apple-darwin:
https://gcc.gnu.org/pipermail/gcc/2021-December/237959.html

The <math.h> system header errors out on any value of __FLT_EVAL_METHOD__ that
is not -1, 0, 1, or 2.