[Bug c/108531] Imaginary types are not supported, violating ISO C Annex G

[Keith.S.Thompson at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108531

--- Comment #3 from Keith Thompson <Keith.S.Thompson at gmail dot com> ---
In the latest C2X draft,
https://www.open-std.org/jtc1/sc22/wg14/www/docs/n3054.pdf
Annex G still requires imaginary number support for any implementation
that defines __STDC_IEC_60559_COMPLEX__ or __STDC_IEC_559_COMPLEX__.

I don't see anything relevant in TS 18661-1
https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2314.pdf