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
