[Bug lto/78795] LTO causes undefined reference errors when linking with GMP "make check"

[trippels at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78795

--- Comment #3 from Markus Trippelsdorf <trippels at gcc dot gnu.org> ---
Also make sure that nm, ar and ranlib use the liblto_plugin,
by either using wrappers (gcc-ar, etc.) or setting up a symlink
to the plugin in lib/bfd-plugins/.