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

[Keith.S.Thompson at gmail dot com via Gcc-bugs]

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

--- Comment #1 from Keith Thompson <Keith.S.Thompson at gmail dot com> ---
After I submitted this, I found that this is probably a duplicate of:

https://sourceware.org/bugzilla/show_bug.cgi?id=15720

(I disagree with the resolution of that bug report.)