[Bug target/84829] -mieee-fp causes to link with -lieee but that is no longer available

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84829

--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
I'd say the right thing is to keep libieee.a around, even if it will be an
empty ar archive.

GCC is not the linker and doesn't have the library search logic the linker has,
so it is hard to add -lieee for -mieee-fp only if it exists and not otherwise.